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Réf. 2352 - 4.33 / a - 6.96 parallel running CT 3 booster CT GS 3Ø 2 measure VT Power VT 2 or 3 measure VT Out of supply Optional Booster board or De-energizing or (Power) (Control) AVR Mains measure Out of supply Rotating diode failure detector (OPTION) Command inputs Fault outpu Potentiometer inputs Alarm output AUTOMATIC VOLTAGE REGULATOR R630 Installation and maintenance AVR Model R630 TABLE OF CONTENT AVR CONSTITUTION ............................................................................................................................ 3 GENERAL DESCRIPTION : NT1950000 /a ........................................................................................... 4 CARDS DESCRIPTION : NT1950xxx .................................................................................................. 12 START-UP : NT1959000 /a .................................................................................................................. 45 NOTE THE ELECTRICAL CONNECTION DIAGRAM ARE ONLY GIVEN AS AN INDICATION. PLEASE REFER TO THE SPECIFIC DIAGRAMS OF YOUR ALTERNATOR. WARNING TO PREVENT PERSONNAL INJURY OR EQUIPMENT DAMAGE, ONLY QUALIFIED TECHNICIANS/OPERATORS SHOULD INSTALL AND OPERATE THIS DEVICE. CAUTION MEGGERS AND HIGH POTENTIAL TEST EQUIPMENT MUST NOT BE USED. INCORRECT USED OF SUCH EQUIPMENT COULD DAMAGE THE SEMICONDUCTORS CONTAINED IN THE AVR. 2 AVR Model R630 DESIGNATION Constitutive elements N° printed circuit board N° complete N° instruction REMARKS card manual Wired empty rack C51950250 NT1950000/c-02/95 SHUNT (+booster) Wired empty rack C51950251 NT1950001/b-10/94 PMG Complete Generator I/O board C51950200 NT1950010/b-10/94 100 / 120V - 50 / 60Hz Complete Generator I/O board C51950202 NT1950010/b-10/94 400 / 450V - 50 / 60Hz 3F Complete Mains I/O board C51950220 NT1950020/b-10/94 100 / 120V - 50 / 60Hz 3F Complete Mains I/O board C51950222 NT1950020/b-10/94 400 / 450V - 50 / 60Hz 2F Complete Mains I/O board C51950210 1F Complete Interface board C51950215 Rack supply CP1950040 C51950041 NT1950040/a-11/92 Sensing CP1950050 C51950051 NT1950050/a-11/92 PID, limitation CP1950060 C51950061 NT1950060/a-11/92 Driver CP1950070 C51950071 NT1950070/b-11/93 CosØ, KVAR CP1950080 C51950081 NT1950080/b-10/94 Limit Istator CP1950090 C51950091 NT1950090/a-11/92 Manual mode 1 CP1950100 C51950101 NT1950100/a-02/93 Digital U / P.F potentiometer CP1950110 C51950111 NT1950110/a-01/94 Digital Ified pot and Follower CP1950115 C51950141 NT1950115/a-01/94 Mains P.F régulation CP1950120 C51950121 NT1950120/a-04/94 Rotating diode fault detector CP1950130 C51950131 NT1950130/a-06/96 Available June 1996 = Neccessary = Optionals IMPORTANT : The informations given by this sheet must be used to order spare parts. Take care of it. 3 AVR Model R630 General description 1 - APPLICATION 5 - SPECIFICATIONS - The AVR model R600 can be used with brusless selfexcited type generators, "SHUNT", "SHUNT with BOOSTER" or "SHUNT with PMG" excitation. In case of "SHUNT with BOOSTER the booster current is totally monitored by the AVR. - Sensing voltage : • 100/110Vac 50Hz • 120/130Vac 60Hz • 380/420Vac 50Hz • 430/450Vac 60Hz - The AVR is able to ensure, depending of its constitution, solo operation, parallel operation between equivalent generators or parallel operation with the mains with cosØ or KVAR regulation. - Power supply : • Depend of generator(Adaptation by transformer). Maximum 180Vac 50/60Hz 2 - DESCRIPTION - The AVR model R631 is composed of electronic cards wich are included in a rack 19" . - Except the necessary "Generator I/O", the optional "mains I/O" located on the left of the rack and the "driver" card located on the right, all the other cards can be plugged anywhere in the rack. Future optional cards could be added without any internal wiring modification. - The rear flat cable (BUS 64 points) is given more long as it can be connected to an optional interface terminal block wich gives all the internal test points or in the future the possibility to connect another rack if the cards number will become too important. 3 - INTERCONNECTIONS - External interconnections are located on the top of the rack in form of two terminal blocks: - A power / voltage terminal block (19 terminals, one with a fuse ) - A command / control terminal block (41 terminals) - A conventional wiring connect this terminal blocks to the power block fitted on a heatsink and also to the "generator I/O" and "mains I/O" to give an interface with the flat cable BUS 64 points. - In the same manner a 8 points connector connects directly the driver card to the power block. 4 - OPTIONAL CARDS - CosØ / KVAR regulation (2F) - Voltage equalization with the mains (3F) - Voltage and P.F digital potantiometers - Manual operation - Ifield digital potentiometer with follower - Istator limitation - Mains P.F or KVAR regulation from 4-20mA sensor - Rotating diodes fault monitor NT1950000/c-02/95 f:1/8 4 - Field output : • 12 Amperes nominal, 24Amp maximum during 10s on 6Ω minimum - Accuracy : • +/-1% of the means of the three phases on linear load and without droop - Voltage setting range : • +/-10% of the nominal voltage by means of external optionnal potentiometer . - Droop setting range : • - 7% of the nominal voltage at cosØ =0 - Under-frequency protection : • Adjustable threshold and slope from V/Hz to 2V/Hz - Field ceiling : • 110% of If nominal permanently, unlocked in case of voltage decrease - Protection : • Heatsink overheating, exciter short-circuit - Alarm output : • Heatsink overheating, too much ceiling unlocked time - Environnement : • Maximum ambiant temperature -10°C to +50°C • Fitting in control panel without excessive vibrations 6 - SCHEMATICS AND DRAWINGS Following schematics give all the usual informations on the interconnexions between the terminal block, the I/O connectors and the power block. AVR Model R630 General description MIMIC DIAGRAM EXCITATION - REGULATION TERMINAL BOX parallel running CT 3 booster CT GS 3Ø 2 or 3 measure VT Out of supply 2 measure VT Power VT Optional Booster board or De-energizing or (Power) (Control) AVR Mains measure Out of supply Rotating diode failure detector (OPTION) Potentiometer inputs Command inputs Alarm output Fault output VOLTAGE / POWER TERMINAL BLOCK Power supply (fuse) Auxiliary voltage Auxiliary voltage Power supply W MAINS V MAINS U MAINS // CT // CT + Booster - Booster - Field 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 + Field 4 + Field flash V MACHINE W MACHINE U MACHINE 1 2 3 COMMAND / CONTROL TERMINAL BLOCK Réserve Réserve Réserve Réserve Réserve Réserve Réserve COSØ / KVAR CMD Ifield Pot Manual pot Info Auto / Manu Auto / Manu Auto / Manu Info Auto / Manu -Iexc CMD Commun +Iexc CMD - CMD U / P.F - 24Vdc ext + CMD U / P.F + 24Vdc ext ALARM ALARM ALARM U/U CMD COSØ CMD COSØ CMD U/U CMD KVAR POT KVAR POT KVAR POT COSØ POT COSØ POT Measure If COSØ POT Measure If VOLTAGE POT VOLTAGE CMD SHIELDS VOLTAGE POT VOLTAGE POT 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 53 57 58 59 53 60 NT1950000/c-02/95 f:2/8 5 AVR Model R630 TERM N° 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 General description VOLTAGE / POWER TERMINAL BLOCK Phase 1 (U) machine (measure) Phase 2 (V) machine (measure) Phase 3 (W) machine (measure) + fiel flashing or pre-excitation input (optional) + field output - field output + booster input - booster input Paralleling CT phase 2 (V) S1 Paralleling CT phase 2 (V) S2 Not connected Phase 1 (U) mains (measure) Phase 2 (V) mains (measure) Phase 3 (W) mains (measure) Not connected Auxiliairy voltage input Auxiliairy voltage input Power supply input Power supply input (fused) 0F 1F 2F 3F N N N O N N O O N N N O N N O O N N N N N O N N O O N N N N N O N N O O N N N N N N N N N N N N N N N N N N N N N O O O O O O O O O O O O O O O O O O O O O O O O O O O N N O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O O N N N N O O O O O O O O O O O O O O O O O COMMAND / CONTROL TERMINAL BLOCK 20,20,20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 Potentiometer shield (3 terminals) External voltage potentiometer maximum CW) External voltage potentiometer (10KΩ-2W) (cursor) External voltage potentiometer ( minimum CCW) External voltage input (10Vdc, 0V to terminal 20) Fied current measurement output (+Vdc) Fied current measurement output (0V) External cosØ potentiometer maximum CW) External cosØ potentiometer (10KΩ-2W) (cursor) External cosØ potentiometer ( minimum CCW) External KVAR potentiometer maximum CW) External KVAR potentiometer (10KΩ-2W) (cursor) External KVAR potentiometer ( minimum CCW) cosØ regulation command input cosØ regulation command input Voltage equalization command input Voltage equalization command input Overheating or ceiling unlocked time alarm (common) Overheating or ceiling unlocked time alarm output (NC) Overheating or ceiling unlocked time alarm output (NO) External +24Vdc supply input ( relay locking) External 24Vdc supply input ( relay locking) common Upper command voltage and P.F Lower command voltage and P.F Common Upper command Ifield (manu) Lower command Ifield (manu) "AUTO / MANU" command input (Open = "AUTO") "AUTO / MANU" command input (Open = "AUTO") "AUTO / MANU" image output "AUTO / MANU" image output Ifield direct manual setting potentiometer Manual mode 1 card Ifield setting potentiometer (10KΩ) CosØ / KVAR selection command input (/ terminal 48) Reserve Reserve Reserve Reserve O = Optional N = Neccessary Nothing = Not applicable NT1950000/c-02/95 f:3/8 6 O = Optional N = Neccessary Nothing = Not applicable AVR Model R630 General description POWER TERMINALS Power supply 5 + Field 18 19 Power supply 5 5 4 7 + Booster 19 47Ω 50W 4 + Field flashing 18 RBD 7 Booster monitor 7 C1 7 E1 8 +VDC Power supply 5 5 G1 HALL 8 sensor B 64 5 +15 LEM Card C2 B 63 G2 7 8 4 3 2 1 5 6 E2 8 OVDC Power supply 7 8 6 5 4 3 2 1 OPTION Thermocontact -15 8 1 2 3 4 5 6 8 7 To LMI 8 points connector on driver card POWER TERMINALS Auxiliary supply 1 POWER BLOCK REF: C5 195 2100 Power wiring Connectors wiring 32pts J1 bac 15c Generator I/O 2a 13c 2c 11c 14c 13a 16c 2c 10c 12c 8c 15a 1a 2c 1c 9c 11a 10c 5c 8a 6a 12a 4c 5a 14a 2c 7c 9a 10a +If CMD -If CMD Auto / Manu Auto / Manu Info Auto / Man Info Auto / Man P4 MAINS I/O 15c 11c 7c 16a 2c 1a 3a 3c 4c 2c 2a 4a 5a 6a 7a 8a 9a 5c POWER TERMINALS U MAINS V MAINS W MAINS CONTROL TERMINALS Ifield POT Manual POT COSØ / KVAR U/U CMD U/U CMD RESERVE RESERVE RESERVE RESERVE RESERVE RESERVE RESERVE RESERVE 51 52 53 36 35 54 55 56 57 58 59 60 61 10c 7a 3c 6c 3a 4a CONTROL TERMINALS + 24Vdc ext - 24Vdc ext +U CMD -U CMD Commun 12 13 14 ALARM ALARM ALARM 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 37 38 39 CONTROL TERMINALS SHIELDS VOLTAGE POT VOLTAGE POT VOLTAGE POT VOLTAGE CMD Measure If Measure If COSØ POT COSØ POT COSØ POT KVAR POT KVAR POT KVAR POT COSØ CMD COSØ CMD P4 9c 10c To 32 points connector P4 on "MAINS I / O" 40 41 42 43 44 45 46 47 4849 50 Auxiliary supply 9 10 11 16 17 // CT // CT 3 4 V MACHINE W MACHINE 1 2 U MACHINE C M Connector LMI 8pts 8 R + 60 60 6 ON HEATSINK 2x1000µF 350V in // or 2200µF 400V 8 70 6 1µF 400V 69 6 - Field Free wheeling diode 8 - Booster 8 NT1950000/c-02/95 f:4/8 7 AVR Model R630 General description + Field - Field 18 19 - Booster 4 + Booster 4 7 + Field flashing 19 18 7 8 Power supply 8 5 Power supply 5 6 R630 POWER BLOCK SHUNT (+ BOOSTER) 6 ARCOL 47Ω 50W 7 To MAINS I / O P4 9c 10c 7 18 60 8 LEM board 74mm x 78mm 8 2200µF 400V 64 5 120mm 5 63 1µF 400Vac 5 19 LEM 8 60 8 76 76 6 132mm Booster IGBT Main IGBT - The following tables give interconnections between each card and the 64 points flat cable. - Grey cases give signals origine. - Other cases where they go. - On the left we have two numbers : • First the connector numering • Second test block terminal number - On the right we have a recapitulative of all the informations wich can be found on the test terminal block. NT1950000/c-02/95 f:5/8 8 8 Connector LMI 8points 300mm 1 5 Rectifier bridge 3 4 5 6 7 Vac puiss 1 8 Vac puiss 2 9 2c 2a 3c 3a 4c 4a 5c GND GND Vac-dm1 Vac-dm2 Vac-dm3 7c 13 7a 14 8c 15 8a 16 9a 18 GND GND GND GND GND GND 16a 32 GND cde Iexc cde Iexc 16c 31 Sauto Uref GND GND +Vcc +Vcc Smanu Sauto 15c 29 IcosØ Uregl GND GND +Vcc +Vcc 15a 30 IcosØ 14a 28 Statisme D Statisme D cosØ, KVAR cosØ, KVAR IsinØ Déphasage TI// Vac-dm2 GND GND +Vcc +Vcc GND cde Iexc Smanu Sauto Correct PID V-10% GND GND Vac puiss 1 +Vcc +Vcc CosØ,KVAR Pot digital U Pot digital Iexc Manu mode 14c 27 Uregl Correct PID Uref Um Ures V-10% GND GND +Vcc +Vcc PID, limit 13a 26 13c 25 12a 24 12c 23 Uref 11a 22 TI// Vac-dm3 Vac-dm2 Vac-dm1 GND GND +Vcc +Vcc Sensing Um GND GND GND -Vdc alim -Vdc alim +Vdc alim +Vdc alim +Vcc +Vcc Supply 11c 21 10a 20 10c 19 Ures Vac-dr3 6a 12 TI// Vac-dr2 9c 17 Vac-dr1 6c 11 GND +Vcc +Vcc Mains I/O 5a 10 GND -Vdc alim -Vdc alim +Vdc alim +Vdc alim +Vcc 2 1a +Vcc 1 Gen I/O 1c PIN PIN GND cde Iexc Smanu Sauto V-10% GND GND Vac puiss 2 Vac puiss 1 +Vcc +Vcc Driver GND cde Iexc Smanu Sauto IcosØ cosØ,KVAR Statisme D Uregl IsinØ Correct PID Uref Um Ures Déphasage TI// V-10% Vac-dm3 Vac-dm2 Vac-dm1 GND Vac-dr3 Vac-dr2 Vac-dr1 GND Vac puiss 2 Vac puiss 1 -Vdc alim -Vdc alim +Vdc alim +Vdc alim +Vcc +Vcc test output AVR Model R630 General description NT1950000/c-02/95 f:6/8 9 NT1950000/c-02/95 f:7/8 10 GND Mes Iexc synchro I limit GND Fin rampe U cosØ 17c 33 17a 34 18c 35 18a 36 19c 37 19a 38 20c 39 Pot tension U tension +Iexc -Iexc +Uauto -Uauto 21a 42 22c 43 22a 44 23c 45 23a 46 24c 47 -Vcc -Vcc Cde U=U Cde reg cosØ U tension Pot tension Fin rampe GND GND U cosØ GND GND -Vcc U KVAR Max pot -Uauto +Uauto U KVAR P.F/KVAR P.F/KVAR U cosØ GND GND GND GND Mes Iexc GND test output Fin rampe GND I limit Cde U=U Cde reg cosØ -Uauto +Uauto -Iexc +Iexc U tension Pot tension U KVAR P.F/KVAR U cosØ Fin rampe GND I limit Perte synchro Perte synchro Mes Iexc GND Driver puiss Cde U Cde U Défaut T°C -Vcc -Vcc -Vcc -Vcc -Vcc -Vcc -Vcc -Vcc 32a 64 -Vcc -Vcc 32c 63 -Vcc -Vcc -Vcc Alarm Alarm 31a 62 -Vcc reserve 31c 61 -Vcc 30c 59 -Vcc reserve Max pot Iexc 29a 58 -Vcc reserve 29c 57 Max pot U/P.F reserve 28a 56 30a 60 reserve 28c 55 Max pot reserve 27a 54 Alarm Défaut T°C Cde A/M cde auto/manu cde auto/manu cde auto/manu -Iexc +Iexc GND GND Manu mode Cde U -Vcc GND GND CosØ, KVAR Pot dig U Pot dig Iex 27c 53 -Vcc GND GND PID, limit reserve Défaut T°C Cde U=U P.F/KVAR GND GND Mains I/O Supply Sensing 26a 52 26c 51 25a 50 cde auto/manu 25c 49 24a 48 Cde reg cosØ U KVAR 21c 41 20a 40 Gen I/O PIN PIN AVR Model R630 General description = 1 1 Bac réseau mains I/O option 2 Bornier Terminal block Bac alternateur alternator I/O 3 4 5 436 482,6 466,7 19 37,7 57,1 37,7 7 8 9 Bornier Terminal block Bloc puissance Power components 6 10 power control option Driver puiss. 11 40 I stator limit 60 Limite I stator Radiateur Heatsink Aliment. Détect. KVAR PID et cos Ø limite supply sensing option PID and limit 12 = 3 14 Bornier Terminal block 132,5 370 Bornier Terminal block 20 Verif : L . D Date : 30/12/92 ENCOMBREMENT REGULATEUR de TENSION AUTO. VOLTAGE REGUL.GENERAL ARRANGEMENT -------------------------SHUNT - - - Serie ::R630 R 600 N °EN 182 2511 Des. : P . B 356 9,5 15 d'Orléans FRANCE 45005 ORLEANS ACEO Ateliers de Constructions Electriques AVR Model R630 General description NT1950000/c-02/95 f:8/8 11 165 AVR Model R630 Generator I/O 1 - FUNCTIONAL - This unit is mainly an interface between external signals and low power electronics. - It is composed by : • The adaptation three phases transformer between input voltage and measurement circuits. • The burden resistor of parallel CT. • The adaptation transformer between input voltage and low power electronic supplies. 2 - ADJUSTMENTS - Setting of the auxiliary input voltage (terminals 16,17) : (110 or 220Vac) by jumpers. 3 - INPUT / OUTPUT See following table INPUT TERMINAL Connector 32 PTS Type I/O Interface Connector 26 PTS Connector BUS 64 PTS 1 1 2 2 3 3 9 10 16 17 15c 15c 13c 13c 11c 11c 16c 10c 1a 1c measure alim measure alim measure alim measure measure alim alim transfo 3Ø TP4 transfo TP2 transfo 3Ø TP4 transfo TP1/2 transfo 3Ø TP4 transfo TP1 resistance RTI GND transfo TP3 transfo TP3 4 7a 2 8c 3 8a 5 1 9a 7c 4c 4a 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 37 38 39 40 41 42 43 44 45 46 47 48 49 50 10c 7a 3c 6c 3a 4a 10c 5c 8a 6a 12a 4c 5a 14a 2c 7c 9a 10a 2a 2c 14c 13a 2c 12c 8c 15a 2c 9c 11a shield signal signal signal signal signal signal signal signal signal signal signal signal cmd input cmd input cmd output cmd output cmd output ext supply ext supply cmd input cmd input common cmd input cmd input cmd input cmd input cmd output cmd output GND resistance direct resistance direct direct GND resistance direct resistance resistance direct resistance relay relay relay relay relay relay relay relay relay relay relay relay relay relay relay relay 1 13 14 15 16 21 1 6 17 23 6 19 23 8 7c 11a 21a 7c 22c 17a 7c 1c 20c 32a 1c 21c 32a 24a 25 25 25 31a 31a 31a 9 10 23a 24c 11 12 7 22a 23c 25a 12 23c NT1950010/b-10/94 f:1/3 12 • The interface input relays between command / control terminals and internal circuits. • The interface between 64pts BUS and the analogic input / output terminals AVR Model R630 1 2 3 U alt V alt W alt 9 // CT 10 // CT - GND Generator I/O 15c 4 13c 2 3 1 5 16c R1 TP2 2 3 } 1 40 Alim auxil Alim auxil +24Vdc ex -24Vdc 1a 7 1c 8 110V 2a 2c CR21 to 24 9 C2 10 15a 14a 34 33 CR3 14c CR4 44 42 CR5 -I exc 44 46 50 49 Info Man Info Man 12c CR6 8c 11a CR7 K7 9c 6 7 R14 +Vcc 1c 25a DS1 K2 R13 R18 K3 8 24a DS2 R12 13a 44 43 44 45 04/10/94 PT1 K1 R17 +I exc 3c,3a 16a,17c 4c 4a Q1 +24Vdc U/U 16a -U CR17 to 20 PT2 TP3 CR1 2c,2a CR5 to 10 CR11 to 16 CR2 +U 6 220V 48 47 cosØ cmd 5 4 TP1 C1 Auto/Man 8a 7c 9a PT3 10c } 17 8c TP4 11c Terminal N° 16 7a 9 23a DS3 K4 10 R11 24c DS4 K5 11 R10 22a DS5 K6 R9 CR8 DS6 12 23c +Vcc +Vcc 21 22 23 24 Pot U Pot U Pot U cmd by U 27 28 29 cosØ pot cosØ pot cosØ pot 30 31 32 KVAR pot KVAR pot KVAR pot 7a 3c 6c 3a 5c 8a 6a 13 14 15 16 R8 R7 R6 17 23 R5 11a 21a 7c 22c 20c -Vcc 32a 04/10/94 12a 4c 5a R4 19 21c R3 R2 7c 38 39 Info Alarm Info Alarm Info Alarm 9a 10a 25 Measure If 4a 37 } Terminal N° K8 R16 Male Connector DIN41612 32Pts CR9 DS7 R15 25 21 Connector HE10 26Pts 31a 17a Male Connector DIN41612 64Pts Wiring by connector HE10 26pts and flat cable Wiring by connector LMI 10pts and normal cables NT1950010/b-10/94 f:2/3 13 AVR Model R630 Generator I/O TP1 15VA TP3 28VA relai TP2 TP2 15VA TP4 TP3 28VA Connect TP1 Connect TP2 TP4 ALTERNATEUR E / S GENERATOR E / S auto/manu Cde cosØ +U auto -U auto +I exc -I exc PT2 PT3 NT1950010/b-10/94 f:3/3 14 TP4 Capa 7812 TP3 28VA PT1 R TI// TP1 Alarm LED AVR Model R630 Supply card 1 - FUNCTIONAL 2 - ADJUSTMENTS - This card, from not regulated symetrical voltage, generates +15Vdc and -15Vdc voltages with 0V common to both named +Vcc for +15V and Vdd for -15V in the following. - The non regulated voltages are first filtered (C01, C02), pre-regulated to 20dc with ballast stages Q01 et Q02 and finally decreased to15V by means of RG01 et RG02 regulators. - Its permanent current capability is 0,5 Amp on both polarity. None 3 - INPUTS / OUTPUTS - 2a, 2c : Input +30Vdc not regulated - 3a,3c : Input -30Vdc not regulated - 1a,1c : Output +15Vdc regulated (Vcc) - 32a,32c : Output -15Vdc regulated (Vdd) - 16a,17c : Common electronic ground MIMIC DIAGRAM OF ELECTRONIC SUPPLY CARD +V not regulated 2a,2c Filter Pre-regul Regulator +15Vdc 1c,1a +Vcc LED +15V 0v 16a,17c 16a,17c 0V LED -15V -V not regulated 3a,3c Filter Pre-regul Regulator -15Vdc 32c,32a -Vdd NT1950040/a-11/92 f:1/2 15 AVR Model R630 Supply card TIP41 Q01 3,4 RG01 TP1 1,2 7815 R03 3,3KΩ C03 R01 330Ω C05 0,33µF 63v C01 CR03 0,33µF 63v 1N4007 CR01 1000µF 40V DS1 BZX85C20 32,33 TP2 R04 1000µF 40V 3,3KΩ CR02 C02 R02 330Ω BZX85C20 C04 0,33µF 63v 0,33µF 63v 63,64 7915 Q02 TIP42 RG02 TP3 ALIMENTATION SUPPLY +15V -15V PT1 PT2 PT3 16 C06 DS2 5,6 NT1950040/a-11/92 f:2/2 CR04 1N4007 AVR Model R630 Sensing card 1 - FUNCTIONAL 2 - ADJUSTMENTS - This card elaborates from the three phases voltage image of the generator given by the "ALTERNATOR I/O" : - A rectified, calibrated, filtered voltage Vm proportional to the stator voltage of the generator. Vm could be affected by droop depending of adjustment. - A voltage function of the generator frequency, a part of which gives the reference set point named Vref. - Vref is a constant above the underfrequency threshold set point (signaled by LED) and decreases below this threshold following a function depending of the position of the strap CV1: • In fixed V/Hz mode • In adjustable kVolt / Hz (see curve below) - P1 : Reactive droop adjust for parallel operation between equivalent machine. - P2 : Vm adjust for nominal voltage. (9Vdc at Un) - P3 : Underfrequency threshold adjust (normally Fn 5%) signaled by LED. - P4 : Underfrequency slope adjust ( k ) in kVolt / Hz mode (1≤ k ≤2) - P5 : Voltage set point Vref for the nominal voltage (10Vdc at Un and Fn) Volt Un Mode Volt / Hz 3 - INPUTS / OUTPUTS - 7a, 8a, 8c : Voltage inputs image of the generator (3 x 21Vac between each and the GND) - 9a : Current input image of the generator stator current (1Vac pour In) - 1a,1c : +15Vdc regulated (Vcc) - 32a,32c : -15Vdc regulated (Vdd) - 16a,17c : Common ground (GND or 0V) - 11c : Voltage output image of the generator (Vm) 10Vdc at Un - 11a : Voltage set point output (Vref) 10Vdc at Un and Fn Mode k x Volt / Hz Fn - 5% Fn Hz MIMIC DIAGRAM OF SENSING CARD TI // 9a AC / DC Reactive droop Um Vm Wm 7a 8c 8a 1c,1a 16a,17c 32c,32a Σ AC / DC AC / DC +Vcc k Filter 11c Vm Threshold U/F 0V -Vdd F -> kV 11a Vref Voltage set point LED NT1950050/a-11/92 f:1/2 17 AVR Model R630 Sensing card C1 8a D1 R20 MN1 R1 R4 R3 R16 Z1 R2 D2 MN1 Z2 R22 R24 11c P2 MN2 R19 R18 R5 Vm C2 R21 8c C3 R23 MN2 R17 R25 D3 MN1 R6 R9 R8 Vcc Z3 R7 Ur D4 MN1 R28 Z4 R10 8 7 6 5 D7 7a MN4 D6 CV1 MN2 R11 1 R14 R13 2 3 R30 MN3 P4 LED 4 C4 9a Z5 R12 D7 MN2 Z6 P1 R27 R15 R26 11a P5 C5 P3 Vref C9 R29 Vcc 1c,1a C6 C8 16a,17c 32c,32a Ur Reg 1 C10 C11 C7 Principle diagram R600 DETECTION SENSING card Vdd 22/06/92 DETECTION SENSING Vref P5 U/kf P4 U/f FRONT VIEW P3 SENSING CARD Vm P2 Statisme/Droop P1 Sous vtesse Underfrequency NT1950050/a-11/92 f:2/2 18 AVR Model R630 PID, LIMIT card 1 - FUNCTIONAL 2 - ADJUSTMENTS - This card, from Vm (machine voltage image), Vref (voltage set point) and complementary informations given in the following, elaborates the voltage command of the power driver card, which is the field current set point. - P1 : Ceiling unlocked voltage threshold adjust (normally 90% Un). - P2 : Proportionnal branch gain adjust (large signal) - P3 : Proportionnal branch gain adjust - P4 : Integrative branch time constant adjust - P5 : Derivative branch gain adjust - P6 : Derivative branch time constant adjust - P7 : Minimum field limitation adjust - P8 : Minimum field limitation, active power correction adjust - Three operating modes are possible, depending of external informations : • Solo operation or parallel operation between equivalent machines (1 Fonction) (this is the normal mode) 3 - INPUTS / OUTPUTS • Parallel operation with the mains with power factor (COSØ) or KVAR regulation (2 Fonction) (only if COSØ / KVAR card is fitted) • Operation in voltage equalization mode between machine and mains before coupling (3 Fonction) (only if "MAINS I / O" CARD is fitted) 1F : Machine image Vmis compared with the sum of Vref, Pext, etc voltages depending of used options and the resultant voltage (error voltage ) feeds the PID. 2F : When cosØ cmd input is activated (+Vcc), the machine voltage Vm is compared to the voltage given from the cosØ/KVAR card and the result (error voltage) feeds the PID. 3F : When U/U cmd input is activated (+Vcc), the machine voltage Vm is compared to the voltage given from the "MAINS I / O" card and the result (error voltage) feeds the PID. A compensation external input, given for specific applications is added to the error voltage and the resultant voltage is the real PID input. Each branch (P, I, D) of the PID, independently adjustable from the others, set the time constants of the AVR in regard to the generator. The integrator branch can be short-circuited, for example when starting-up. These three outputs are added, limited to 10Vdc and then give the field current set voltage of the "automatic channel" which is the driver card input. The minimum value of this signal can be limitated to avoid total loss of excitation of the generator. In case of parallel operation with the mains (cosØ/KVAR card), this limitation is a function of the active power supply by the generator, this information is given by the COSØ / KVAR card. A separate stage detect if the generator voltage is below an adjustable value to unlock the normal field ceiling voltage from 110% of nominal to 160% (adjustable). - 11a : Voltage reference set point input. Vref - 13c : Added signal to voltage reference set point input (option) - 22c : Added signal to voltage reference set point input (external voltage option) - 21a : Added signal to voltage reference set point input (external potentiometer option) - 13a : Added signal to voltage reference set point input (differential droop option; with cosØ/KVAR card) - 19a : Integrator short-circuit command input - 10a : Mains image voltage input (3F) (with "MAINS I / O" card only) - 14c : CosØ error voltage input (2F) (with cosØ/KVAR card) - 25c : Voltage equalization command input (3F) (with "MAINS I / O" card only) - 24a : CosØ regulation command input (2F) (with cosØ/KVAR card) - 1a,1c : +15Vdc regulated (Vcc) - 32a,32c : -15Vdc regulated (Vdd) - 16a,17c : Common electronic ground - 14a : Minimum field limitation, active power correction input - 15c : Field current voltage control output "AUTO" channel NT1950060/a-11/92 f:1/3 19 AVR Model R630 PID, LIMIT card MIMIC DIAGRAM PID, LIMIT CARD Vref 11a Vpot dig 13c + + Vstat 13a - CdeU 22c + + Pext 21a Vres 10a CdeU/U Vm CosØ + - static relay ∑ + P - 25c I 11c 14c CdeCosØ 24a V Externe 12c Cct integ 19a Vm -10% ∑ static relay static relay D 9c ∑ ++ + Vm 11c - Vref 11a + IcosØ 14a If min limit PID & LIM Iexc P1 Vm min P3 P P4 I P5 D FRONT VIEW PID CARD LIM Iexc min P7 Limit Iexc min NT1950060/a-11/92 f:2/3 20 10V 15c AUTO output - 15V 0V + 15V Fim da rampa Cct Int Vref -10% Cmd P.F P.F / KVAR Corr ext Vm Cmd U/U U mains Droop Pot ext Cmd U Pot dig Vref 32c,32a 16a,17c 1c,1a 19a D8 25a D7 11a 9c 24a 12c 14c 11c 25c 10a 13a 21a R40 22c R39 13c R2 11a R1 C10 C9 ST1 R23 C8 C7 R3 R6 R7 CI1 R8 Vdd Vcc C5 R43 R25 A CI1 R24 Vcc (Positive = desexcitation) D11 D10 R22 R21 P1 D6 R4 CI1 R5 C6 R9 VL 8 2 14a 6 4 Vcc 3 1 IcosØ P7 L1 P8 8 R13 R17 10 9 MN2 R30 10 9 R14 MN3 CI1 R12 R45 R28 R29 D10 Lim Iexc min R31 R11 Vcc R27 R46 R26 R10 C1 Vdd CI4 7 5 VL 8 2 8 6 4 Vcc D9 R18 C2 Vdd 7 CI5 5 VL 3 1 12 13 R42 MN3 D I P C4 R19 R41 D2 D1 14 R34 R33 R32 R20 D4 7 P3 CI2 P5 CI2 D3 1 6 Z1 5 3 R37 R36 D I P Principle diagram PID, limit card CI2 C11 2 4 Vcc VL CI1 R35 C3 8 CI6 D5 Vdd A P4 P6 R16 P2 R15 CI3 R38 19c 15c Min Iexc S auto AVR Model R630 PID, LIMIT card NT1950060/a-11/92 f:3/3 21 AVR Model R630 Driver card 1 - FUNCTIONAL 2 - ADJUSTMENTS This card controls from "AUTO" and "MANU" voltage reference and some additional informations detailed in the following, the exciter field current supply by the regulator and the booster (if used). - P1 : Integrator time constant adjust. - P2 : Unlocked ceiling time delay adjust. (generally 5s) - P3 : Alarm time delay adjust after ceiling unlock. - P4 : Permanent ceiling value adjust (generally 1,1If nominal) - P5 : HALL sensor range adjust. - P6 : Initial ramp-up adjust - P7 : Maximum field current adjust (machine short-circuit) - P8 : Maximum fieeld current in case of heatsink overheating. - Three operating mode are possible, depending of external informations : • Normal mode with 110% ceiling of If nominal. • Ceiling unlocked mode (160% minimum Ifield nominal) depending of the command input from the PID card with limited delay and alarm output in case of sustained undervoltage. • Maximum ceiling mode if the synchronisation voltage desappears ( machine short-circuit) with limited (adjustable) field current. - The "AUTO" or "MANU" reference voltage depending of the associated command input and also of the active limitations, is compared to the field current measurement and gives the error voltage which is after integration, compared to a sawtooth feed by the synchronisation voltage. The output of this stage is a variable duty cycle signal which controls the power transistors throught isolating optocouplors. - This card can be supplied in three manners : • From the general supply of the rack in normal operation • Throught an isolated supply taken from the field voltage during start-up or generator short-circuit (Rack supply not present) • Directly from the field voltage for power transistor command. The permanent limitation (110% de Iexc nominal) can be modified by the following conditions: - Field ceiling unlocking on machine undervoltage condition. It inccreases from 110% (normal operation) to a minimum of 160% of the nominal field current during an adjustable time delay and then go back to 110%. An alarm is activated if this undervoltage is sustained afterward. - Field ceiling unlocking on synchronisation voltage abcence. It increases to the maximum given by the sett-ing of P7. - Field ceiling limitation caused by power heatsink overheating. On thermocontact action the ceiling is reduced to a value given by the setting of P8. A separate circuit monitors the instantaneous current of the power transistor and reduces immediatly the command signal if its value increases above a fixed value. (Exciter or wiring short-circuit protection ). NT1950070/b-11/93 f:1/3 22 3 - INPUTS / OUTPUTS Flat cable (BUS 64points) - 15c : If reference set point input "AUTO" channel - 15a : If reference set point input "MANU" channel - 25a : "AUTO / MANU" command input (0V = "AUTO") - 9c : Unlocking ceiling command input - 4a, 4c : Synchronisation voltage input - 26c : Heatsink thermocontact input - 1a,1c : +15Vdc regulated (Vcc) - 32a,32c : -15Vdc regulated (Vdd) - 16a,17c : Common ground (GND or 0V) - 17a : Field current measure output - 19a : End of ramp-up output signal - 31a : Alarm output Card connector (8 points) - 1 : Field voltage - 2 : Main transistor drain - 3 : Main transistor gate - 4 : Booster transistor gate - 5 : Power ground - 6 : +Vcc HALL sensor - 7 : -Vcc HALL sensor - 8 : HALL sensor measure output AVR Model R630 Driver card MIMIC DIAGRAM DRIVER CARD Driver card 8pts connector Supply +/-15Vdc 32a 32c 16a 17c 1a 1c Auxiliairy isolated supply supply +Vcc -Vdd Measure 0 - VDC Synchro Loss of synch 15c AUTO input 15a Auto / Manu cm 25a If set point outp 16c Alarm outpu +Vcc -Vdd Converter I/U short-circuit monitoring 4a,4c Synchronisatio Synchro loss 18c MANU input Unlock ceilin input 0V 17a 9c Static Relay + + PID Opto + Ipl +Vdc Power supply 6 7 8 } HALL sensor 2 Transistor Drain 4 Booster transistor cmd 3 Principal transistor cmd 5 Power GND HALL sensor supply PWM GND Ts 1 Ramp Limit 1 31a Lim max If limit valu 18a End of ramp 19a Heatsink thermocontac 26c DRIVER Iexc max P7 Iexc lim P4 FRONT VIEW DRIVER CARD T ramp P6 T Iexc lim P2 Vm min Ramp end NT1950070/b-11/93 f:2/3 23 9c Vmin 16c Cmd 25a M 15a 15c A 18c 4c R19 3 8 2 4 Vcc C2 D5 R26 D8 R61 I 6 C17 Vcc 5 9 8 CI 2 CI 2 R22 R21 Vdd 7 R18 R17 R15 P1 14 2 C4 3 2 D3 1 D9 11 10 7 C11 CI 2 CI 2 8 C1 D4 R10 CI 1 T alarme 6 R24 Vcc CI 1 C5 9 10 D7 R16 R27 R23 Vcc C3 Ts Q2 14 Z6 Q1 CI 1 R5 R60 12 18 Vcc 1 R12 D26 4 5 R2 CI 4 D2 R3 R4 R8 R9 C20 13 1 5 6 R25 Q3 7 7 OPT1 ALARME 31a R30 CI 1 3 2 Vcc P4 Lim Iexc 110% R29 R28 Vcc C6 R31 -15V R11 5 6 8 19c D10 Z1 18V C15 C13 Vdd C14 R63 Z5 Vcc D20 D21 D22 1a 1c R51 D11 Z2 Q4 R55 +Vcc Lim I 18a R34 R1 R14 0V R32 +15V R33 Sync 0 -10V R13 1 4 Qxx 14 Rxx Zx 8 F R 19a 2 5 4 CI 3 CI 3 1 R52 Q6 12 13 9 10 CI 3 C9 Q7 D18 R46 C12 R49 C8 R45 CI 3 5 Maxi iexc Z4 Gamma Iexc P5 7 Q11 3 2 1 P8 Lim TC R47 6 5 Vcc 6 8 C hall Principle diagram DRIVER card R58 D17 D25 D24 Vcc I R39 D16 R57 Q10 R37 D15 Vcc Q12 R59 Rampa R50 3 2 Q9 C7 C16 18V 18V 18V R62 Q13 D14 Q8 C18 Cmd booster D12 Q5 18V C/C1 OPT3 R56 32a 16a 32c 17c R35 D1 R20 R40 4a LED1 R36 D13 R38 R41 R6 P2 R42 Z3 R43 Vcc P3 OPT2 LED2 P6 24 R44 NT1950070/b-11/93 f:3/3 P7 C10 R48 Vdd 7 Vexc Tc 26c 17a I -A E- +A +E AVR Model R630 Driver card AVR Model R630 Cos Ø - kVAR Optional card 1 - FUNCTIONAL per (CAV) on the card (internal). This card elaborates from generator current and voltage informations, the following signals: 2 - ADJUSTMENTS - An image of the reactive current of the generator named (KVAR) used for KVAR regulation. - An image of the phase shift between the voltage and the current of the generator named (Ø) used for cosØ (PF) regulation. - P1 - P2 - P3 - P4 - P5 - P6 - P7 : KVAR internal setting. : PF (cosØ) internal setting. : Voltage phase shifter (internal) : PF (cosØ) gain setting : KVAR gain setting. : Différential droop setting : Pulse width setting (internal) - Jumper CAV : Selection of droop type - An image of the active current of the generator named (KW) used for compensate the minimum Ifield limit of the PID card. - The principle of measurement is to sample and hold the instantaneous value of the current when the instantaneous voltage reaches zero on positive slope. - First the current image of the stator current is filtered and used directly for KVAR measure. Then it is derivated and used for KW measure. And then it is amplified to obtain square waves and integrated to give a sawtooth used to Ø measure. - The voltage image is phase-shifted to compensate the phase shift of the current input filter and after amplification is fed to a monostable which gives the pulse signal (about 100µs) used by all the sample and hold circuits. - KVAR and Ø values are compared with an internal and external (if used) setting and the difference is send to the PID card as an error signal. An external contact control an analog switch to select what information between KVAR and Ø will be regulated. - Three informations (Ø, ∆Ø, ∆KVAR) can be used as an alternative droop for solo operation. • Ø gives no droop at cosØ=1 and the voltage decreases at lagging PF. • ∆Ø gives no droop at the cosØ setting and the voltage decreases at more lagging PF and opposite for more leading PF. • ∆KVAR gives no droop at the KVAR value setting and the voltage decreases with more KVAR and increases if less. No : Reactive droop adjusted by P1 (sensing card) CAV1 : No droop for cosØ=1 and droop if lagging. CAV2 : No droop for KVAR setting (P1), voltage decreases if more KVAR (lagging) and opposite if less. CAV3 : No droop for PF setting (P2), voltage decreases if more lagging and opposite if less or leading. Nota : If the droop is used from this card, potentiometer P1 of the sensing card must be set to zero. 3 - INPUTS / OUTPUTS Flat cable (BUS 64points) - 8c : Generator voltage image input - 9a : Generator current image input - 20a : Command input "cosØ / KVAR" (0V = "cosØ") - 21c : External KVAR setting input - 20c : External cosØ setting input - 1a,1c : +15Vdc supply (Vcc) - 32a,32c : -15Vdc supply (Vdd) - 16a,17c : Common electronic ground - 14c : Error signal output to PID card - 13a : Droop signal output to sensing card - 14a : KW signal output to PID card - 12a : KVAR signal output - 10c : Ø signal output - The selection between these is made by mean of jum- NT1950080/b-10/94 f:1/3 25 AVR Model R630 Cos Ø - kVAR Optional card MIMIC DIAGRAM COSØ - KVAR CARD IsinØ CosØ 12a 10c external KVAR setting 21c Vac 8c Phase shifte external cosØ setting 20c Monostable CosØ/KVAR cmd 20a KVAR CT // 9a Sample and hold Filter IsinØ Gain KVAR KVAR KVAR Ø 14c 1c,1a +Vcc d( )/dt ∫ ( ) dt Sample and hold Gain COSØ Ø 2 3 1 CAV -Vcc 32c,32a 16a, 17c 0V Sample and hold COSØ, KVAR KVAR P1 Gain kvar P5 FRONT VIEW COSØ - KVAR card Cos Ø P2 Gain cosØ P4 Statisme D P6 NT1950080/b-10/94 f:2/3 26 IcosØ CosØ Diff droop 13a KW 14a CR02 CR01 R50 0V -Vcc +Vcc 0V C01 R04 U V W 8c 32c,32a 1c,1a 17c 16a TR1 0V S2 TI// S1 9a R01 CR04 CR03 C05 0V TP2 MA1 R51 R28 R26 R06 C06 R21 C11 R20 R05 MA1 C02 0V C12 P03 R52 C25 R22 R08 MA1 R07 TP8 MA4 R53 R30 R55 R54 C13 2 3 2 1 C04 4 MA5 7 R56 C14 C15 6 TP9 R41 MA3 R47 TP5 R42 2 6 MA10 CR10 R44 -Vcc T1 R32 MA4 +Vcc R18 TP6 R17 R16 MA3 R19 3 MA7 2 C16 4 1 R35 R34 R33 P05 Ø C17 3 5 16 7 P07 TP10 R39 2 8 6 Cde UcosØ 20c IcosØ 14a Erreur 14c 0V R38 20a 21c Ukvar R38 +Vcc HR P04 R29 13a HR P06Stat D R27 10c 12a CAV1-3 MA8 1 C26 to 30 Gain Ø R36 MA3 R37 Gain K HR IsinØ principle diagram COSØ - KVAR card 8 R59 R43 HR P02 COSØ R31 MA3 HR R15 R14 TP7 +Vcc C10 1 R46 R57 Cde 2 1 C09 Cde 6 MA9 -Vcc R13 P01 KVAR +Vcc R12 MA2 TP4 MA2 C07 Cde 6 MA6 R40 R25 C24 R24 TP1 C20-21 MA2 R11 MA1 R10 TP3 C08 MA2 R23 R09 C03 C31 R03 CR05 R02 R58 AVR Model R630 Cos Ø - kVAR Optional card NT1950080/b-10/94 f:3/3 27 AVR Model R630 Optional mains I/O 1 - FONCTIONNAL input / output terminals. - This unit is mainly an interface between external signals and low power electronics. - It is composed by : • The adaptation three phases transformer between input voltage and measurement circuits. • The AC/DC converter to give an image voltage of the mains voltage. • The interface input relays between command / control terminals and internal circuits. • The interface between 64pts BUS and the analogic - P01 : Ur setting for mains nominal voltage. (10Vdc for nominal value) 3 - INPUT / OUTPUT See following table. INPUT TERMINAL Connector 32 PTS Type I/O Interface Connector 26 PTS Connector BUS 64 PTS 12 13 14 15c 13c 11c sensing sensing sensing 3Ø transformer TP4 3Ø transformer TP4 3Ø transformer TP4 13 17 21 5a 6c 6a 51 52 54 55 56 57 58 59 60 1a 3a 2a 4a 5a 6a 7a 8a 9a signal signal spare spare spare spare spare spare spare direct direct 3 5 7 2 4 6 8 10 12 15a 27c 27a 28c 28a 29c 29a 30c 30a 36 4c 2c 3c 2c cmd input cmd input cmd input cmd input relay relay relay relay 1 9 14 9 25c 1c 20a 1c 10c 9c GND thermocontact direct direct 25 26 16a, 17c 26c 53 NT1950020/b-10/94 f:1/3 28 2 - ADJUSTMENTS AVR Model R630 Optional mains I/O 12 U mains 15c 13 Terminal N° 13 V mains 11c 17 W mains 7c 21 14 5a 6c 6a 25 16a, 17c TP4 +Vcc 1c AC 10a DC L1 L2 L3 -Vcc 32a 3c P.F / Kvar 48 53 Terminal Bl CR16 14 35 36 Terminal Bl K1 9 1 2c +12Vdc U/U 25c R26 CR15 5c Reserve 20a R27 4c Cmd U/U 2c 16a To 32pts J1 generator I/O K2 K3 11 Thermostat 51 Cmd Ifield 52 Pot MANU Reserve 54 55 Reserve Terminal 56 Reserve N° 57 Reserve 58 Reserve 59 60 10c 9c 25 26 3 5 7 2 4 6 8 10 12 1a 3a 2a 4a 5a 6a JUMPERS Thermostat 7a 8a 9a Reserve Reserve Connector male DIN41612 32Pts 2 11 MA1/1 0V 1c,1a R02 26c 15a 27c 27a 28c 28a 29c 29a 30c 30a Connector HE10 26Pts 16a 17c 31c R31 CR17 R22 3 PRINCIPLE DIAGRAM CR1 1 4 R07 MAINS I/O AC/DC PT4 C01 +Vcc 6 CR9 MA1/2 CR10 CR2 7 R10 MA2/3 5 R13 MA1/3 R01 R23 R03 PT2 PT3 CR11 R05 R04 CR3 8 13 MA1/4 11 MA2/1 3 10a Ur 12 R18 R15 0V +Vcc R12 CR13 C05 14 R11 12 R24 C02 13 CR4 14 0V 2 R17 P01 PT5 R08 5a 6c 6a R25 R21 10 CR12 8 MA2/4 9 0V R16 9 10 PT1 PT7 R14 32c,32a -Vcc Connector 41612 64Pts CR8 R20 CR5 1 L1 4 R09 PT6 R06 6 CR14 MA2/2 0V Q01 CR6 7 5 R19 TP4 U V W 0V NT1950020/b-10/94 f:2/3 29 AVR Model R630 Optional mains I/O 10TE LED TP4 P01 Connect Connect relais LED relais LED relais LED INTERNAL VIEW MAINS I / O RESEAU E/S MAINS I/O Reseau P01 FRONT VIEW MAINS I / O PT1 PT2 PT3 PT4 PT5 PT6 S1 PT7 CosØ / Kvar U/U NT1950020/b-10/94 f:3/3 30 AVR Model R610 / R630 Digital pot U / P.F Optional card 1 - FUNCTIONAL 2 - ADJUSTMENTS This card replace two conventional motorized potentiometers : • One for the remote voltage setting. • One for power factor or reactive current setting. - P1 : Clock speed (total range time) - P2 : Voltage range value - P3 : P.F or KVAR range value - SW1 : Voltage range polarity (0/+ or +/-) - SW2 : P.F or KVAR range polarity (0/+ or +/-) - Switch between the two modes is made by the external P.F regulation order (terminals 33, 34) and switch between P.F and KVAR setting is made by the external order (terminals 48,53) - Each last position is memorized when the control is switched or when the machine is stopped. - Jumps (SW1 and SW2) allow the choice between unipolar or bipolar voltage output and the range is adjusted by means of potentiometers P02 and P03. - Jumps SW3 and SW4 must be open for normal operation and are only used for special applications. - Speed of all adjustments is controled by potentiometer P01. 3 - INPUTS / OUTPUTS Flat cable (BUS 64 points) - 24c : Cmd lower - 23a : Cmd upper - 16c : If reference set point input - 15c : If reference set point input "AUTO" channel - 24a : External P.F regulation order - 20a : External P.F or KVAR regulation order - 13c : Voltage setting output to PID card - 20c,21c : P.F or KVAR setting output to P.F card - 30a : Maximum position of settings - 1a,1c : +15Vdc regulated (Vcc) - 32a,32c : -15Vdc regulated (Vdd) - 16a,17c : Common ground (GND or 0V) - Two LED's (L1,L2) indicate the command orders + or and four other LED's (L3,L4 and L5,L6) indicates the maximum and minimum position of voltage and P.F settings NOTE : When this card fitted, the internal voltage setting (P05 on sensing card) must be used to give the center position of the range (if bipolar range) or the minimum setting in case of unipolar range (idem for P.F and Kvar internal setting on P.F card). An external setting potentiometer must not be used, the settings are made only by mean of push-buttons on terminals 42, 43, 44. NT1950110/a-01/94 f:1/3 31 AVR Model R610 / R630 Digital pot U / P.F Optional card Digital pot U / P.F CARD MIMIC DIAGRAM UP Cmd + INC Logic static relay DOWN Cmd - 24c Cmd P.F 24a Max U/D 23a 30a CS 0V SW1 SW2 -Vref U/D Clock Min Max Pos Digital pot U P01 Speed INC Max Digital pot P.F / KVAR Min CS U range + P.F / Kvar range - static relay P.F Output Kvar Output 20c Kvar Cmd DIGITAL SETTINGS HAUT UP BAS DOWN MAX Voltage FRONT VIEW MIN Digital pot U / P.F MAX CosØ - Kvar MIN P1 SPEED NT1950110/a-01/94 f:2/3 32 21c 20a R45 R47 R44 R43 R46 R42 0V 16c Cde Iexc Sauto 15c Cde + Cde - R17 R16 R11 23a 6 - P2 5 - P2 MIN L4 L3 Voltage MAX 15c Sauto 16c CR11 CR10 MIN L6 L5 CR8 R7 R4 R3 R9 R25 30a R41 C2 MN2 R24 MN2 R40 C1 R8 MN2 pot end R20 R19 CR8 Cde Iexc +Vcc -Vcc R2 R1 cosØ kvar MAX CR9 CR7 -Vcc 3 - P2 5 - P1 6 - P1 MN3 R18 SW4 CR5 -Vcc +Vcc 3 - P1 MN3 R23 MN2 R22 SW3 CR4 R10 -Vcc +Vcc 24c 32c,32a 1c,1a R21 CR3 R6 R5 CR2 T2 CR1 T1 R49 R51 R48 R50 L2 L1 MN6 C08 AND AND R15 R13 +5V MN10 P03 MN10 P02 R32 R30 R31 MN1 HR AND AND MN6 +5V HAUT / HIGHT +Vcc R14 R12 BAS / DOWN +Vcc P01 R33 MN7 AND AND MN7 CR06 S4 U/D 7805 Range +/-5V à +/-10V Range +/-5V à +/-10V S2 S1 0V +Vcc REG1 0V Vref 0V C3 R26 C7 11a R29 3 1 -Vcc R34 AND AND 7 1 R36 3 8 2 4 5 0V 7 4 R38 +Vcc 8 8 POT1 VOLT 4 R54 R53 R39 0/+ +/SW1 6 5 3 +/- 0/+ SW2 CosØ / kvar 20a 20c UcosØ 21c Ukvar 13c Pot Tension MN1 5 3 6 POT2 COSØ 0V +5V 1 7 2 R37 INC CS U/D INC 1 CS U/D 2 Principle diagram Digital pot U / P.F / KVAR R52 6 MN4 MN1 AND AND +Vcc -Vcc R35 S4 MN8 2 8 R28 7 45 MN9 6 24a Cde cosØ +5V R27 AVR Model R610 / R630 Digital pot U / P.F Optional card NT1950110/a-01/94 f:3/3 33 AVR Model R630 Manual mode 1 Optional card 1 - FUNCTIONAL 2 - ADJUSTMENTS This card elaborates from internal setting (PO2) and external setting informations, the Ifield command signal given to "MANU" channel of the driver card. - P1 - P2 - P3 - P4 - The Ifield output signal is limited or reduced if the generator voltage exceeds the limitation value sets by the potentiometer P01 (trip of the main breaker on load for example). - This case of operation is indicated by the LED "LIMIT" and the Ifield setting must be decreased to a point under control. - On MANU operation, the difference between MANU output and AUTO channel output gives a compensation signal which is used to compensate the PID to have always the MANU and AUTO channels outputs identical. With this circuit a smooth switching between MANU to AUTO is possible and operation will go back to the AUTO channel own settings. - The ceiling can be unlocked on this operation, that is why it can be necessary to wait some seconds after the switching to return on MANU operation. - On AUTO operation, these two channels are also monitored and the difference is indicated by three LEDs. • HIGH says that MANU channel is higher than AUTO • LOW says that MANU channel is lower than AUTO • OK says that MANU and AUTO channels are identical and smooth AUTO ---> MANU switching is possible. NOTE : If a Ifield digital potentiometer is used, the internal setting (P02) must be set to 0 or under the no load field value and an external setting potentiometer must not be used. In that case the setting is made only by mean of push-buttons on terminals 44, 45, 46. NT1950100/b-10/94 f:1/3 34 : Voltage limitation setting : Internal Ifield value setting : PID compensation gain setting : Internal compensation setting 3 - INPUTS / OUTPUTS Flat cable (BUS 64points) - 4c : 24Vac input image of the generator from "generator I/O" card - 25a : "AUTO / MANU" command input (0V = "AUTO") - 16c : If reference set point input - 15c : If reference set point input "AUTO" channel - 27c : External Ifield setting input - 1a,1c : +15Vdc regulated (Vcc) - 32a,32c : -15Vdc regulated (Vdd) - 16a,17c : Common ground (GND or 0V) - 15a : If set point output "MANU" channel - 12c : PID compensation output - 9c : Ceiling locked output AVR Model R630 Manual mode 1 Optional card MANUAL MODE 1 CARD MIMIC DIAGRAM 24Vac 4c AC / DC Filter + PI ampli f - 1c,1a - S manu 15a + External If Control +Vcc 27c Voltage limitation -Vcc 32c,32a Ifield setting 0V 16a, 17c Ceiling locked 9c Limitation ET + If setting too high Cmd auto/manu PID Correct 25a S manu + S auto - 12c relais statique Ifield Cmd 16c - S auto 15c + Gain If setting too low + ET If setting OK - MANUAL MODE LIMIT HAUT HIGH LOW BAS OK FRONT VIEW Manual mode P3 Seuil P2 Iexc P1 Gain NT1950100/b-10/94 f:2/3 35 36 NT1950100/b-10/94 f:3/3 4c CR01 CR02 R01 R35 R36 Cde Iexc 16c Sauto 15c 7 P03 MA2/2 5 R38 6 6 7 R33 MA1/2 R04 MA1/1 1 3 MA3 5 6 3 2 -Vcc +Vcc R37 R30 8 4 R03 R02 R32 R31 -Vcc +Vcc 25a 9c Correction 12c Integrale du PID + = désexcité Cde auto / manu inhibition déblocage plafond 16a, 17c 0V 24Vac 32c,32a 1c,1a R34 R05 HR 7 CR04 CR03 1 C01 R07 R08 Sauto Smanu Smanu Sauto T01 R06 R51 R50 R41 R40 R42 4 MA2/3 10 R53 9 R52 12 R43 MA2/4 R10 P01 13 14 -Vcc MA1/4 R09 12 13 C02 R44 CR10 P02 R54 11 CR20 8 14 HR MA1/3 C03 R55 CR21 R45 CR11 HR R15 R11 +Vcc R12 R13 CR05 R56 R57 R46 1K R47 R28 R29 R14 R16 CR06 CR12 T03 CR23 BAS T04 OK LIMIT R23 0V +Vcc -Vcc 27c Cde U Smanu 15a Principle diagram Manual mode 1 card R61 R62 CR31 CR08 T05 R27 MA3/1 R25 R26 CR30 R60 R21 R22 P04 R24 CR09 HAUT MA3/1 R39 CR07 CR13 T02 R17 R19 MA2/1 R20 R18 AVR Model R630 Manual mode 1 Optional card AVR Model R630 1 - FUNCTIONAL Digital pot Ifield Optional card This card replace one conventional motorized potentiometer in "MANU" mode and sets the "MANU" channel output always equal to the "AUTO" one to allow the smooth switching between the "AUTO" and "MANU" operation at any load (follower in "AUTO" mode). 2) ADJUSTMENTS - P1 : Clock speed (Time delay in follower mode) - P2 : Clock speed (range time in "MANU" mode) - P3 : Ifield range value - SW1 : Voltage range fixed or U/F monitored - SW3/4 : Normal (open) or follower (closed) operation - Switch between the two modes is made by the external "AUTO / MANU" order (terminals 47,48) 3 - INPUTS / OUTPUTS - Jumps SW1 allows the choice between voltage output taken from U/F control of the sensing card or from a 5V fixed reference and the range is adjusted by means of potentiometer P03. - Jumps SW3 and SW4 must be open for normal operation and closed for follower operation. - Speed of the adjustment is controled by potentiometer P01 in manual setting and by P02 in follower operation. P02 acts as a delay between an "AUTO" output variation and the "MANU" output response. Flat cable (BUS 64points) - 23c : Cmd lower - 22a : Cmd upper - 25a : Cmd "AUTO / MANU" - 11a : U/F voltage reference - 16c : If reference set point input - 15a : If reference set point input "MANU" channel - 27c : Ifield setting output to Manual mode card - 30a : Maximum position of settings - 1a,1c : +15Vdc regulated (Vcc) - 32a,32c : -15Vdc regulated (Vdd) - 16a,17c : Common ground (GND or 0V) - Two LED's (L1,L2) indicate the command orders + or and two other LED's (L3,L4) indicates the maximum and minimum position of Ifield settings NOTE : When this card is fitted, the internal Ifield setting (P02 of manual mode card) must be set to 0 or under the no load field value and an external setting potentiometer must not be used. The Ifield setting is made only by mean of push-buttons on terminals 44, 45, 46. NT1950115/a-01/94 f:1/3 37 AVR Model R630 Digital pot Ifield Optional card Ifield digital pot CARD MIMIC DIAGRAM UP Cmd I+ U/D 22a INC Logic DOWN Cmd I- CS 23c Out Digital pot 2 In Max Pos SW4 30a SW3 +5V Vref P01 Follower Speed static SW1 U/D relay INC Clock In Digital pot 1 Max Min Out CS P02 Manu Speed Cmd Auto/Manu 25a Iexc range 16c Smanu Iexc set Output - + + 15a Cmd Ifield + Iexc DIGITAL SETTING HAUT UP BAS DOWN MAX Iexc FRONT VIEW MIN Digital pot Ifield P1 SPEED NT1950115/a-01/94 f:2/3 38 27c R16 22a R43 R46 R42 0V 16c Cde Iexc R17 Smanu 15a +I -I 23c 32c,32a 1c,1a R23 SW4 CR5 -Vcc R18 6 - P2 5 - P2 -Vcc CR9 CR7 +Vcc 3 - P2 MN2 R22 SW3 CR4 R11 R10 -Vcc +Vcc MIN L4 L3 MAX 15a Smanu 16c CR8 R20 Cde Iexc R19 +Vcc -Vcc R2 R1 MN2 R40 pot end R9 R8 R21 30c MN2 MN2 C2 R24 R25 R7 R4 R3 C1 CR3 R6 R5 0V Cde A/M 25a +Vcc -Vcc CR2 T2 CR1 T1 R1 7 4 5 2 8 R30 6 R15 R13 3 1 P01 C08 AND R48 HR MN6 HIGHT HAUT R14 R12 DOWN BAS AND MN9 L2 L1 R31 R32 MN1 AND AND MN6 +5V +Vcc +5V +Vcc HR P2 S2 S1 R33 MN7 AND AND MN7 S4 U/D CR06 0V +Vcc REG1 0V C3 R26 R49 R51 0V +5V Vref 7805 0V 11a AND SW1 R34 S4 MN8 AND C7 +5V 46 R52 27c Pot Manu 3 5 3 5 8 +5V 8 POT1 0V 1 7 POT2 64 Range +/-5V à +/-10V MN1 INC CS 2 1 7 2 +5V Principle diagram Ifield digital potentiometer P03 R36 R35 AND AND U/D INC CS U/D 0V AVR Model R630 Digital pot Ifield Optional card NT1950115/a-01/94 f:3/3 39 AVR Model R610 / R630 1 - DESCRIPTION This card is used when the P.F or KVAR regulation is wanted not at the generator terminals but at the mains input. For this a P.F or KVAR sensor with 4-20mA output is necessary and it must be located at the place where the regulation must be made. 2 - FONCTIONAL This card elaborates from setting informations and 420mA signal image of P.F (or KVAR) of the mains, the errorvoltage dending to the PID of the PID card. - The error signal have an ajustable gain and can be inversed depending of the 4-20mA sensor output. - This kind of operation is indicated by the LED "L3" and by a contact (potential free) on the front connector. - This operation is selected by mean of a contact on front connectort and will be active on coupling when contact between terminals 33, 34 of main terminals will be closed. If the contact on front connector remains open, the regulation (P.For KVAR) will be made at the generator output, if it is closed, this is the 4-20mA information wich is regulate function of the internal settings (P2 or channel 2 420mA) or/and external by the front connector. - If during operation, the measuring 4-20mA signal deseappears, control is automatically return to regulation on the generator output side and this failure is indicated by LED L1 ou L2 and by a contact on front connector. - A second channel can be used as set point of the first channel or as a remote adjustment of voltage, P.F or KVAR on generator side. As on channel 1 if the 4-20mA deseappears, output is inhibited and indicated by LED L2. - A field current limitation is given, active when a contact (front connector) is closed and indicated by LED L4. The limitatio is adjusted by P7 (Limit 2 set) and can be set between a maximum value preset by P7 on driver card and a minimum value preset by P8 on driver card. - An signaling contact on the front connector gives (if they are used) the indication that one or more of the digital potentiometers are at maximum position . 3 - ADJUSTMENTS Potentiometers - P1 : Channel 1 range adjustment - P2 : Reference set point channel 1 - P3 : Gain channel 1 - P4 : Channel 2 range adjustment - P5 : Reference set point channel 2 - P6 : Gain channel 2 - P7 : Limit 2l adjustment NT1950120/a-04/94 f:1/3 40 Mains P.F Regulation Optional card Jumpers - CV1 A : Channel 1 used - CV1 B : Channel 1 not used - CV2 A : Channel 1 used - CV2 B : Channel 2 not used - CV3 A : Non inverting error channel 1 - CV3 B : Inverting error channel 1 - CV4 A : Non inverting error channel 2 - CV4 B : Inverting error channel 2 - CV5 A : Channel 1 in 4-20mA regulation channel 1 - CV5 B : Channel 1 in voltage setting - CV5 C : Channel 1 in generator P.F setting - CV5 D : Channel 1 in generator KVAR setting - CV6 A : Channel 2 in 4-20mA regulation channel 2 - CV6 B : Channel 2 in voltage setting - CV6 C : Channel 2 in generator P.F setting - CV6 D : Channel 2 in generator KVAR setting - CV6 E : Channel 2 in channel 1 setting 4 - INPUTS / OUTPUTS Flat cable (BUS 64points) - 12c : Error output to PID - 21a : Output to voltage setting - 20c : Output to generator P.F setting - 21c : Output to generator KVAR setting - 30a, c : Digital pot at maximum position - 1a,1c : Supply +15Vdc regulated (Vcc) - 32a,32c : Supply -15Vdc regulated (Vdd) - 16a,17c : Common ground - 23a : Cmd + U or + P.F - 24c : Cmd - U or - P.F - 14c : Output of generator side P.F card - 24a : P.F regulation order - 26c : Limitation 2 output to driver card Front connector (DB25 points) - 13 : + 4-20mA input channel 1 - 25 : 4-20mA output channel 1 - 20 : 12V to external setting potentiometer ch 1 - 12 : External setting potentiometer cursor ch 1 - 24 : Ground to external setting potentiometer - 11 : + 4-20mA input channel 2 - 23 : 4-20mA output channel 2 - 20 : 12V to external setting potentiometer (ch 2) - 10 : External setting potentiometer cursor ch 2 - 22 : Ground to external setting potentiomete -9 : 4-20mA failure (NO) - 21 : 4-20mA failure (NF) -8 : 4-20mA failure (Commun) -3 : Digital pot at max position (NO) - 15 : Digital pot at max position (NF) -2 : Digital pot at max position (Common) - 7,19 : Contact regulation ch 1 active (mains P.F) - 14,1 : Contact limitation 2 active LED - L1, L2 : 4-20mA failure channel 1 or 2 - L3 : Channel 1 active - L4 : Ifield limitation 2 active AVR Model R610 / R630 Mains P.F Regulation Optional card MAINS P.F REGULATION CARD MIMIC DIAGRAM Connector DB 25 points Connector 64 points 20 24 4 -20mA / 0-10V 10Hz Filter - FRONT CONNECTOR I / O +12V 22 4 - 20mA failure 0V B C D CV3 A B B C D E CV4 Open : reg generator P.F 20c 21c Ifield Limit 2 12c 21a Ref P.F 20c Ref Kvar 21c A CV2 A L2 K1 K1 9 8 16a, 17c 0V -Vcc 15 K2 3 K2 K5 2 K1 24c Limitation Ifield 2 +Vcc 14 30c 23a 7 19 1c,1a 32c,32a 30a Adapt L3 Closed : reg mains P.F 21a Ref Kvar +Vcc Pot dig at max position 12c Ref P.F CV6 Corr PID R A Ref U Int setting channel 2 CV1 L1 21 4 - 20mA failure CV5 Corr PID R A Ref U MA9 - + 20 A B Gain External setting 2 10 Pot ext Ref 2 K5 Int setting channel 1 0V 23 - + +12V 11 Chan 2 4 -20mA External setting 1 12 Pot ext Ref 1 Gain 10Hz Filter 4 -20mA / 0-10V 25 REAR FLAT CABLE I / O 13 Chan 1 4 -20mA 0V 14c 24a 0V 26c L4 1 aux I / O 25 13 MAIN P.F ON FRONT VIEW MAINS P.F REG 4-20mA 1 OFF 2 Limit 2 14 1 ON P2 Main P.F set P5 Ref 2 set P7 Limit 2 set NT1950120/a-04/94 f:2/3 41 Limit 2 active Reg P.F gen or mains +12V 1 14 19 7 20 Pot dig 15 3 at max position 2 21 4 - 20mA 9 8 failure LED Failure 4 - 20mA 0V 24 0 - 10V 10 Ref 2 Channel 2 4 -20mA 23 11 0V 24 0 - 10V 2 Ref 1 Channel 1 4 -20mA 25 Front connector I / O +Vcc 0V +Vcc 0V 0V L1 R24 L2 R51 CR6 R36 CR5 Converter 4 -20mA / 2-12V R25 Converter 4 -20mA / 2-12V K2 K1 CV1A Q2 R58 C14 R43 R45 R71 R10 R09 R32 Q3 R61 +Vcc P02 hr R33 P05 hr R11 R41 MA8 C15 +Vcc MA7 C08 R12 R62 R63 +Vcc R31 L4 R70 +Vcc hr Limitation Ifield 2 adj P7 CR7,8,14,15 : Relays free wheeling diodes R60 R59 R57 R44 C07 R08 R15 42 CV2A NT1950120/a-04/94 f:3/3 R39 13 R13 R34 R14 R16 C18 CR16 0V K1 R64 CR10 CR12 CR09 CR11 R37 MA8 P06 R19 MA7 P03 R38 R66 Q4 CR13 MA8 R35 R18 MA7 R17 R53 R67 R65 R54 1 7 L3 20c 21a -Vcc +Vcc 0V Q5 R69 26c -Vcc 14c 24c 23a 24a 30c 30a 32c,32a 1c,1a 16a, 17c Ref Kvar 21c Ref P.F Ref U R52 12c 0V Corr PID K5 K51 R68 R56 D C B 20c Ref Kvar 21c 21a Ref P.F 12c Ref U R26 Corr PID -Vcc E CV6 A D C B CV5 A Principle diagram mains P.F reg card 6 K5 MA9 4 5 3 2 R55 Q1 +Vcc A B CV4 CV3 A B AVR Model R610 / R630 Mains P.F Regulation Optional card Rear flat cable I / O AVR Model R610 / R630 LIMIT Istator Optional card 1 - FUNCTIONAL 2 - REGLAGES - A voltage, image of the stator current of the machine, fed from the "ALTERNATOR I / O" card is rectified, filtered and compared to a reference voltage. The error signal gives a voltage correction which is added to the main PID input to maintain the stator current equal to the adjusted value. - P1 : Stator current limit adjust. (about 2In to 4In ) - P2 : Ramp-up time adjust. (0,5 à 4s environ) - P3 : Output signal gain 3 - INPUTS /OUTPUTS - 9a : Stator current image input (1Vac for In) - 1a,1c : +15Vdc regulated (Vcc) - 32a,32c : -15Vdc regulated (Vdd) - 16a,17c : Common ground (GND or 0V) - 12c : Voltage correction output to PID. - The reference voltage is applied with an initial ramp ajustable from 0,5 to about 4s. - A front LED signals stator current limitation operation. - When this card is used for soft-start operation, the AVR power transformer must be fed from a separate source during the start operation and can be switched on the generator output when the voltage have reached the nominal value. The switching must be as fast as possible (by relay, not by manual switch). MIMIC DIAGRAM Istator limit card TI // 9a 1c,1a 16a,17c 32c,32a Seuil Istator AC / DC Filter +Vcc 0V T -Vdd GAIN + RAMP - 12c Ampli PI Limitation LED NT1950090/a-11/92 f:1/2 43 AVR Model R610 / R630 R04 R02 MA1/1 9 MA1/3 8 R05 3 1 CR3 4 R06 R10 R11 R07 R09 10 CR01 11 2 C01 9a R01 LIMIT Istator Optional card 6 MA1/2 R03 7 MA1/4 P01 CR4 C02 14 12 R08 5 CR02 C03 13 R12 0V 0V 16a 17c (Positif = desexcitation) 0V 1a,1c +Vcc +Vcc 32a,32c -Vcc R27 R23 L1 C04 -Vcc R19 C06 Q01 R25 R14 11 2 MA2/1 3 P02 1 R16 R17 CR06 MA2/2 4 R15 CR05 C05 7 R22 10 R20 R21 R24 LIMIT I STATOR LIMIT FRONT VIEW Lim Istator card P1 SEUIL P2 Ramp P3 GAIN 44 MA2/3 P03 0V NT1950090/a-11/92 f:2/2 9 CR07 5 R18 R13 6 8 CR08 R26 12c AVR Model R630 CAUTION Never energize the AVR when the driver card is removed. An overvoltage can appear and the power transistor can be damaged. 1 - STARTING WITH MANUAL MODE CARD - For initial start-up, the best is to use the manual mode for testing the sensing wires between the generator and the AVR. - For this it is necessary to have a manual mode card plugged in the AVR. If not, see directly §2. - Short-circuit terminals 47and 48 (AVR terminal block). - Set the potentiometer P2 on manual card maximum CCW, start the prime mover up to the nominal speed. - Turn slowly the potentiometer CW to obtain the nominal voltage. Start-up R630 4 - ADJUSTMENTS - Refer also to card descriptions. - The AVR is normally preset in factory. - The nominal voltage can be set by Vref (P5) on sensing card. Fine adjustment can be made by an external voltage potentiometer (10KΩ), (terminals 21,22,23) - If an adjustment must be moved, note carefully the original setting for resetting in case of problems. - If the strap V/Hz of sensing card is on kV/Hz position, the original setting is V/Hz and can be changed between V/Hz and 2V/Hz by potentiometer P4. -The stability is adjusted with the machine in factory. If necessary, the response time can be changed by the setting of potentiometer P4 of PID card. - Other settings are difficult to adjust without specific electronics equipments. It is better to not change them. 5 - FIELD FLASHING - Check that the voltage between terminal 25 and 26 of the AVR terminal block is about one volt. - Generally, field flashing is not necessary, but in some cases like long stop time or fault trip, it can be possible that the voltage does not appear naturally. In this case, connect a 12Vdc to 24Vdc voltage source to the terminals 4 and 8 of AVR terminal block, + to 4 for a short time and remove it when the voltage increases. - If yes, remove the strap between terminals 47 and 48 of AVR terminal block. 6 - PARALLEL OPERATION (1F) - The voltage must reach the nominal value. - The generator voltages must be as equal as possible. - Go to §3 - Same for the droop. If it is not possible to measure it, set the potentiometers P1 of the sensing cards all in the same position (middle set for example). If the droop setting is made from cosØ/KVAR card (when used), see notice NT 1950080. - Check the presence and the value of the three phases at the AVR terminal block (terminals 1, 2, 3). - Set the voltage to 5% above the nominal voltage. 2 - STARTING WITHOUT MANUAL MODE CARD - Start the prime mover up to the nominal speed.. - If the voltage does not appear, check wires between AVR and the generator field (terminals 5 and 6 of AVR), and the also the wires between AVR and power transformer (terminals 18 and 19 of AVR). Check also the fuse inside the terminal 19 of AVR terminal block. - If the voltage is too hight, check that the auxiliary voltage at the terminals 16 and 17 of AVR and the sensing voltages at the terminals 1, 2, 3 of the AVR terminal block are present. - Adjust the nominal voltage with Vref (P5) of the sensing card for the middle position of the external voltage potentiometer (if used). - The reactive currents (KVAR) must be shared, immediatly after coupling, even the KW are not shared. - If, immediatly after coupling, the current increases abnormally, check if the parallel CT wires are not reversed (9 et 10 of AVR terminal block). - If the coupling is OK but if when the load increases, the cosØ or the current have an abnormal value, check that the sensing phases at the input of the AVR are right connected. (U, V, W respectively to the terminals 1, 2, 3 if clockwise rotation or W, V, U, if counter clockwise rotation). 3 - DE-ENERGIZING (optional) - External contacts E01 and E02 must be used. - E01 must be serie with terminal 19 of AVR (power input) and is opened for de-energizing. - E02 must short-circuit the booster output (if used) (terminals 7 and 8 of AVR) and is closed for de-energizing. NT1959000/a-11/92 f:1/2 45 AVR Model R630 Start-up R630 7 - PARALLEL WITH THE MAINS (2F) 9 - MANUAL OPERATION (if used) - The generator and mains voltages must be as equal as possible. (see §8 if MAIN I/O card is used). The contact between terminals 33, 34 of AVR terminal block must be closed at the same time as the coupling and will remain closed as long as the generator is connected to the mains. It will be open when parallel between generators. - If a manual mode card is used, it is possible to control directly the field current of the generator. - If, immediatly after coupling, the current increases abnormally, check if the parallel CT wires are not reversed (9 et 10 of AVR terminal block). - If the coupling is OK but if when the load increases, the cosØ or the current have an abnormal value, check that the sensing phases at the input of the AVR are right connected. (U, V, W respectively to the terminals 1, 2, 3 if clockwise rotation or W, V, U, if counter clockwise rotation). - The PF value is normally factory set to 0.8. It can be adjust by mean of potentiometer P2 on cosØ/KVAR card or by mean of an external potentiometer (10KΩ-1W) connected to AVR terminal block (27,28,29). - If the KVAR regulation is required terminals 48 and 53 must be short-circuited and the KVAR can be set by mean of potentiometer P1 on cosØ/KVAR card or by mean of an external potentiometer (10KΩ-1W) connected to AVR terminal block (30, 31, 32). - For droop setting, see notice NT 1950080. 8 - VOLTAGE EQUALISATION (3F) - The following procedure must be made one time to take account of the mains transformer primary/secondary ratio. - At no load and mains voltage present at terminals 12, 13, 14 of the AVR terminal block. - Short circuit terminals 35,36 of the AVR terminal block - Adjust P1 of MAIN I/O card to have generator and mains voltage as equal as possible. - Remove the strap between terminals 35, 36 of the AVR terminal block. - The initial setting is made. In normal operation the contact between terminals 35, 36 of the AVR terminal block must be closed with synchronizer operation and can be opened after coupling. NT1959000/a-11/92 f:2/2 46 - In automatic mode, adjust the potentiometer P2 on manual mode card to have the LEDs "HIGHT" and "LOW" off and the LED OK ligthing. At this time the manual setting is equal to the automatic channel control. - Short-circuit the terminals 47,48 of the AVR terminal block gives control to the manual channel and the field current is adjusted by potentiometer P2 and/or by an external optionnal potentiometer (10KΩ-1W) connected to the terminals 30, 52, 23 of the AVR terminal block cusor on 52 and hot point on 30. - This mode can be used when initial start-up of the generator, to make test after problems or when operating with the mains. It cannot be used when solo operation because it is not possible to follow the load variations. - When coupling with the mains on load, if trip of the generator occurs, an overvoltage may occurs due to the fact that the field current setting is too hight regarding the load of the generator. On this case, an internal circuit of the card decreases the field current to limit the overvoltage approximatively to 110% of nominal. LED "LIMIT" on front of the card will light. The setting of field current must be reset manually to the no load value and the LED "LIMIT" will switch off.