Download Electronic soft starters

Pt A 2007 Sec 06 pp1-21
16/11/06
Refer catalogue IMS-F
11:46 AM
Page 15
Electronic soft starters
IMS2 for motors to 800 / 1500 kW @ 400 V AC and 690 V AC
Standards and approvals: AS/NZS 3947-4-2, C-tick, CE, CSA, UL
Overview
The IMS2 series is a multi-microprocessor based soft starter – motor
management system designed for the control and protection of motors from
7.5 through to 1500 kW @ 400 V AC and 690 V AC.
Available as standard in an IP 54 format to 132 kW and designed specifically
for the Australian market, the IMS2 incorporates all motor and system
protection functions one would expect from a ‘high end’ soft starter together
with numerous additional controls, monitoring and protection functions aimed
specifically at reducing installation costs.
The IMS2 is further complemented by an innovative mechanical design,
extensive fault and status indication, programmable digital inputs and
outputs and a variety of ‘human interface’ options to make it the world’s
first truly general-purpose soft starter.
IMS2-0018-V5-F1-E5
For automated plants, the IMS2 also offers RS 485 serial communications
and field bus connectivity as standard.
Motor starting
IMS2 soft starters provide the user a selection of starting and stopping
modes as standard. The ability to select and tailor the starting format ensures
the full benefits of soft starting can be achieved in any industrial motor
starting application.
6
Standard starting modes
Constant current
The constant current start mode is of particular advantage in installations
where it is necessary to limit the maximum starting current. The starting
current is quickly ramped up to a user programmed maximum level and starter
output voltage is then dynamically adjusted to ensure the programmed
maximum starting current is maintained irrespective of motor and load
characteristics. The constant current start mode is best suited to high
inertia applications.
Current ramp
The current ramp start mode is ideally suited to those applications that
exhibit a variable start torque requirement. It allows the user to program an
initial start current, maximum start current and start ramp time to ensure
electrical and mechanical stresses are minimised irrespective of motor
loading. In generator set applications, the current ramp start mode acts to
minimise shock loading on the generator, providing more time for the
governor to respond to the changing load conditions.
Torque control
The IMS2 torque control start mode provides a more linear start characteristic
and enables extended starting times to be achieved in light load applications.
In general, it provides a further reduction in mechanical stress thereby
extending the maintenance interval and reducing maintenance costs.
Kickstart
The IMS2 kickstart feature is of particular advantage in applications that
present a high frictional starting characteristic. It provides an initial ‘short
duration’ high torque pulse to overcome the high starting friction and then
reverts to accelerating the load smoothly.
6 - 15
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Page 16
Electronic motor starters
IMS2 series overview
Standards and approvals: AS/NZS 3947-4-2. C-tick, CE, CSA, UL
Standard stopping modes
Soft stop
During soft stop, the IMS2 gradually decreases output voltage
enabling driven machines to be stopped gently. The soft stop
function is of particular advantage in applications where
machinery or product can be adversely affected by
sudden stopping.
Pump stop
The pump stop feature acts to minimise pressure surging during
the stop cycle of pump operation. The IMS2 analyses motor
characteristics as they change during stopping and generates
control commands to provide smooth deceleration of the motor.
Soft motor braking
For applications that may require more braking torque than that
achievable with D.C. braking, the standard IMS2 can be
configured for soft motor braking functionality. The soft braking
function requires the addition of an AC 3 rated contactor.
6
Protection functions
Pre-start circuit analysis and configuration
To prevent damage from incorrect installation or supply related
problems, the IMS2 performs an automatic systems analysis
before each start and self calibrates accordingly. During pre-start
analysis, the IMS2 monitors and configures itself for; supply
circuit, voltage, frequency, phase sequence, motor circuit
and connection method, internal power circuits and
control connections.
Run-time motor and system protection
From the moment a start has been initiated, through to
completion of a soft stop, the IMS2 monitors and protects
against a variety of motor and system conditions. Protection
features include:
■ Programmable I2t motor thermal model
■ Motor thermistor temperature
■ Excess start time
■ Phase loss and phase asymmetry (line and load side)
■ Phase sequence
■ Electronic shearpin (instantaneous over-current)
■ Under load (under-current)
■ Auxiliary trip input
■ Supply frequency
■ Starter over-temperature
■ RS 485 failure
Motor thermistor protection
The IMS2 starter provides a direct input for standard (PTC) motor
thermistors. Thermistor protection is used to detect excessive
temperature in the motor windings caused by stalled conditions
or inadequate ventilation.
Excess start time
The excess start time protection feature will trip the IMS2 if the
start extends beyond the programmed limit, thereby indicating a
stalled condition during start or that the start torque
requirement has increased since commissioning.
Phase loss and phase asymmetry
The IMS2 offers a current based phase asymmetry protection
feature for detection of faults in the supply or motor circuit.
Programmable I2t motor thermal model
Programmable thermal modelling makes standard motor
protection systems, that are set purely on the basis of motor full
load current and operate to a fixed trip curve, obsolete.
The programmable thermal model allows the user to program
actual motor thermal characteristics, thus permitting full
utilization of the motor without fear of motor burn out.
6 - 16
The IMS2 monitors all three phases continuously and calculates
the differential between highest and lowest phase currents.
A trip condition will occur when the user adjustable phase
assymetry level is reached.
Pt A 2007 Sec 06 pp1-21
16/11/06
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Page 17
Electronic motor starters
IMS2 series overview
Standards and approvals: AS/NZS 3947-4-2, C-Tick, CE, CSA, UL
Phase sequence protection
Trip log
IMS2 soft starters provide a user configurable phase sequence
protection facility. This can be configured to enable operation in
the following modes:
■ Forward phase sequence
■ Reverse phase sequence
■ Forward and reverse phase sequence i.e. no phase
sequence protection.
Phase sequence protection is generally applied in rotation
direction sensitive applications such as pumps, compressors etc.
The 8-position fault trip log enables the user to review trip
history, identify recurring problems and attend to issues that are
affecting productivity.
Electronic shearpin protection
The electronic shearpin or instantaneous over-current protection
feature ‘trips’ the IMS2 when the motor current exceeds a user
programmed maximum level. This feature is used to detect a
sudden increase in motor loading, which may represent a ‘stall’
or ‘locked rotor’, condition.
Undercurrent protection
The undercurrent or under-load protection feature ‘trips’ the
IMS2 when the motor current falls below the user programmed
minimum level. Undercurrent protection is used to detect a
sudden decrease in motor loading, which may indicate a broken
coupling between the motor and driven machine, a broken
conveyor belt, loss of product or a dry pump.
Auxiliary trip input
The IMS2 offers an auxiliary trip input to permit direct
connection of external fault detection devices, such as low
pressure or no flow detectors, vibration sensors etc.
Supply frequency error
The IMS2 also monitors the supply frequency during run to
ensure motors and generator sets are not inadvertently operated
outside of their design parameters.
Starter over-temperature protection
Each power module within a force cooled IMS2 soft starter is
protected against over-temperature conditions that may result
from inadequate ventilation or blocked ventilation ports.
Microtherm temperature sensors ‘trip’ the IMS2 when these
over-temperature conditions are detected.
RS 485 failure
The IMS2 RS 485 serial link is provided with a user adjustable
time-out function. The IMS2 will trip if the maximum allowable
period of RS 485 serial inactivity has been exceeded.
Restart delay
To prevent inadvertent operator abuse of the starter and motor,
the IMS2 provides a user adjustable restart delay feature.
Settings of up to 2550 seconds are possible.
Run-time trip warnings
IMS2 soft starters provide a variety of run-time trip warnings
thereby allowing machine operators to maximise plant
productivity without fear of nuisance tripping. The high/low
current and motor temperature flags may be assigned to
individual output relays and these together with the 4-20 mA
analogue output can integrate with external control and
monitoring devices to form part of a closed loop process.
IMS2 specialist features
IP 54 standard to 132 kW
IMS2 soft starters are provided in a standard IP 54 format to
132 kW. Just bolt it to the wall, connect the power and control
cables, program it and start. No need to concern yourself with
enclosure, bypass contactor, available space etc.
Quick start set-up procedure
Although the IMS2 offers the most advanced soft start,
protection and interface functions presently available, they are
pre-programmed such that operation can be achieved after
completing the following 5 basic steps.
■ Connect 3 phase supply cables and earth
■ Connect motor cables and earth
■ Connect control supply
■ Program function 1, Motor Full Load Current
■ Press start
Local/remote operation
IMS2 soft starters can be controlled from keypad start, stop and
reset pushbuttons, remote control input terminals or via the
RS 485 serial link.
RS 485 serial link
For automated plants, the IMS2 also offers RS 485 serial link as
standard. A variety of Fieldbus communication devices are
available to further enhance system compatibility
Line and inside delta motor connection
IMS2 soft starters provide the flexibility of ‘line’ (3 wire) or
‘inside delta’ (6 wire) operation. In 6 wire mode the power
semiconductors control phase current (approximately 58 % of
line current) thereby allowing the selection of a smaller, more
economical IMS2 soft starter.
Advanced auto-reset functionality
The IMS2 offers advanced auto-reset capabilities. Protection
functions are grouped according to severity and type of fault.
Through programming, the user may select individual fault
groups that he/she feels should be auto-resettable to minimise
site call out. In addition, the number of re-start attempts is
also user programmable.
Auto-off process timer
The need to run the machine for a pre-defined period of time is
a common requirement in many industrial applications. IMS2 soft
starters provide an auto-off process timer that will shut the
machine down when the programmed time (up to 25 hrs, 30
mins) has elapsed.
No flow bypass timer
The IMS2 provides a fully programmable auxiliary trip input that
can be configured to provide no flow bypass functionality during
soft start and soft stop. The no flow sensor may be connected
directly to the auxiliary trip input.
Bypassed operation
The IMS2 retains all motor and system protection functions
in bypassed mode to eliminate the need for additional
protection devices.
6 - 17
6
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Electronic motor starters
IMS2 series overview
Standards and approvals: AS/NZS 3947-4-2, C-Tick, CE, CSA, UL
Fire mode operation
Adjustable power terminals
When configured for fire mode operation a voltage free contact
can be used to start the IMS2, if not already running, and
continue operation ignoring the trip conditions specified in the
emergency mode format. Opening the circuit across the
programmable input ends the fire mode operation and enables
normal operation.
The busbars on models IMS2-0302 to IMS2-1574 can be user
adjusted to provide four different input/output power terminal
configurations. This facility further reduces cabinet space/size
and is of particular advantage in satisfying specified cable entry
and exit requirements.
Thermal model decrement
The IMS2 can be programmed to reduce its stored value of motor
thermal memory to permit another start.
Thermal model over-ride
For those installations where an alternative form of motor
protection is preferred, the IMS2 provides a thermal model
over-ride facility to eliminate the possibility of conflict
between the two devices.
Analogue output
The IMS2 provides a fully scaleable 4-20 mA analogue output
that can be configured to represent motor current or motor
thermal capacity.
Starts counter
6
The IMS2 incorporates a register that counts the number of
successful starts. This allows the operator to monitor machine
use and program maintenance intervals.
Programmable relays
The IMS2 provides 3 user programmable output relays to enhance
interface with external process and control devices.
Programmable input
The IMS2 provides a programmable input terminal that forms the
basis of various specialist functions. These include parameter
selection, auxiliary trip and emergency/fire mode operation.
Dual parameter sets
The IMS2 range of soft starters specifically caters for two- speed
motors. Each IMS2 enables the user to program ‘low and high
speed’ starting, stopping and protection parameters. Low or
high-speed parameter selection is achieved via an
external switch.
In addition to the control of 2 speed motors the dual parameter
setting facility may be utilized for ‘duty/standby’ applications. In
such applications, a single IMS2 may be programmed to start,
stop and protect 2 motors with similar or substantially different
characteristics. This eliminates the need for additional
protection devices.
Emergency mode operation
The IMS2 soft starter provides an emergency start facility
(accessible through programming) for those situations when the
cost of lost production out-weighs the potential cost of further
equipment damage. IMS2 protection functions are grouped
according to severity and type of fault. The user may choose to
make the emergency mode applicable to individual fault groups
or all faults as required.
Keypad set-up procedure
Quick and accurate set-up of the
IMS2 is assured through a simple
4 button keypad data entry
system. Simply select the function
number, view the parameter
setting, alter as required and
press ‘store’. The program is saved
to EEPROM to ensure it is
maintained throughout periods of
no control voltage or voltage dips.
Catalogue number identification
The IMS2 is available in a variety of different formats to ensure
individual user requirements are totally satisfied. Models stocked
by NHP are listed on page 6 - 19 and 6 - 20 of this catalogue.
All other combinations are available on indent, POA.
Password protection – access code
The ability to set an access code ensures only selected, suitably
qualified staff can adjust programming parameters. When used
in conjunction with the ‘function lock’ facility, total program
security is assured.
IMS2 - 0018 - V5 - F1 - E5
Enclosure rating
E0 = IP 00/Nema 0
E5 = IP 54/Nema 12
Function lock
The function lock facility enables users to define the level of
access available to others. The IMS2 function lock can be
configured to provide ‘read/write’ or ‘read only’ access.
Functionality
F1 = 3 wire/6 wire capable
Store/restore settings
Three phase supply voltage
The IMS2 provides users with the ability to load and store
commissioned parameter settings into an internal register. This
facility is provided in addition to the ability to restore factory
default settings.
V5 = 200 V AC - 525 V AC
V7 = 200 V AC - 690 V AC
Nominal current rating
Amps @ AC 53a:3-30:50-10
Ambient Temp. 45 °C, Altitude < 1000 m
Product series designation
6 - 18
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Electronic motor starters
IMS2 series specifications
Standards and approvals: AS/NZS 3947-4-2, C-Tick, CE, CSA, UL
IMS2 Specifications
Supply
Supply voltage IMS2xxxx-V5-xxx-xx-xx
Supply voltage IMS2xxxx-V7-xxx-xx-xx
Electronics supply IMS2xxx-xx-C24-xx-xx
Supply frequency (at start and during run)
(during start)
Control Inputs
Start (Terminals C23, C24)
Stop (Terminals C31, C32)
Reset (Terminals C41, C42)
Programmable input A (Terminals C53, C54)
Outputs
Run output (Terminals 23, 24)
Programmable output A (Terminals 13, 14)
Programmable output B (Terminals 33, 34)
Programmable output C (Terminals 41, 42, 44)
Analogue output (Terminals B10, B11)
Dimensions and weights
IMS2-0018 to IMS2-0047
IMS2-0067 to IMS2-0125
IMS-0141 to IMS2-0238
IMS2-0253
IMS2-0302 to IMS2-0585
IMS2-0628 to IMS2-0897
IMS2-1153 to IMS2-1574
Sundry
Enclosure rating IMS2xxxx-xx-xxx-xx-E0
Enclosure rating IMS2xxxx-xx-xxx-xx-E5
Rated short circuit current (with semi-conductor fuses)
Rated insulation voltage
Surges
Fast transients
Rated impulse withstand voltage
Form designation
Electrostatic discharge
Equipment class (EMC)
Radio-frequency electromagnetic field
Pollution degree
Operating temperatures
Relative humidity
Standards /approvals
CE
UL 2)
C-UL 2)
C√
Notes:
3 x 200 V AC to 525 V AC (3 wire connection)
3 x 200 V AC to 440 V AC (6 wire connection)
3 x 200 V AC to 690 V AC (3 wire connection)
3 x 200 V AC to 440 V AC (6 wire connection)
230 V AC (+10 %/-15 %) or 400 V AC (+10 %/-15 %)
50 Hz (±2 Hz) or 60 Hz (±2 Hz)
> 45 Hz (50 Hz supply) or > 55 Hz (60 Hz supply)
N/O, Active 24 V DC, 8 mA approx.
N/C, Active 24 V DC, 8 mA approx.
N/C, Active 24 V DC, 8 mA approx.
N/O, Active 24 V DC, 8 mA approx.
N/O, 5 A @ 250 V AC/360 VA, 5 A @ 30 V DC resistive
N/O, 5 A @ 250 V AC/360 VA, 5 A @ 30 V DC resistive
N/O, 5 A @ 250 V AC/360 VA, 5 A @ 30 V DC resistive
C/O, 5 A @ 250 V AC/360 VA, 5 A @ 30 V DC resistive
4-20 mA
(H) (W) (D)
(kg)
380 x 185 x 180 mm 6 kg
380 x 185 x 250 mm 7 kg
425 x 270 x 275 mm 17.5 kg
425 x 390 x 275 mm 23 kg
545 x 430 x 294 mm 42 kg
545 x 430 x 294 mm 49 kg
845 x 574 x 353 mm 110 kg
6
IP 00 (Open chassis)
IP 54 (NEMA 12)
100 kA
690 V
2 kV line to earth, 1 kV line to line
2.0 kV / 5.0 kHz
2 kV
Form 1
4 kV contact discharge, 8 kV air discharge
Class A 1)
0.15 MHz - 80 MHz: 140 dBµV
80 MHz - 1 GHz: 10 V/m
Pollution degree 3
-5 °C / +60 °C 3)
5 - 95 % (max. non-condensing)
IEC 60947-4-2
UL508
CSA 22.2 No. 14
AS/NZS 3947-4-2, CISPR-11
1
) This product has been designed for class A industrial environments. Use of the product in domestic environments may cause
radio interference, in which case the user may be required to employ additional mitigation methods.
2
) Requires the use of semi-conductor fuses; is applicable for supply voltages up to 600 V; excludes models IMS21153 to IMS21574.
3
) Consult NHP for revised ratings above 45 ºC.
6 - 21
Pt A 2007 Sec 06 pp1-21
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11:46 AM
Page 19
Electronic motor starters
IMS2 series – technical/ordering details
Standards and approvals:
AS/NZS 3947-4-2,
C-Tick, CE, CSA, UL
AC 53a CONTINUOUS OPERATION
IMS2 maximum motor FLC ratings - Based on 10 starts/hour equally spaced, 45 °C
Light duty
3 x FLC,
10 sec
3 wire 6 wire
Medium duty
3.5 x FLC,
15 sec
3 wire 6 wire
Heavy duty
4 x FLC,
20 sec
3 wire 6 wire
Severe duty
4.5 x FLC,
30 sec
3 wire 6 wire
Cat. No.
18
27
16
25
14
22
12
19
IMS2-0018-V5-F1-E5
34
51
32
48
28
42
24
36
IMS2-0034-V5-F1-E5
41
62
39
58
34
51
28
42
IMS2-0041-V5-F1-E5
47
71
44
66
39
58
33
50
IMS2-0047-V5-F1-E5
67
101
60
90
52
79
46
69
IMS2-0067-V5-F1-E5
88
132
78
116
68
102
59
88
IMS2-0088-V5-F1-E5
96
144
85
127
74
111
64
96
IMS2-0096-V5-F1-E5
125
188
112
168
97
146
84
125
IMS2-0125-V5-F1-E5
141
212
122
183
107
161
94
141
IMS2-0141-V5-F1-E5
202
303
177
266
155
233
135
202
IMS2-0202-V5-F1-E5
238
357
211
317
185
277
160
241
IMS2-0238-V5-F1-E5
253
379
218
327
191
286
167
251
IMS2-0253-V5-F1-E5
302
453
275
413
239
358
205
308
IMS2-0302-V5-F1-E0
405
608
376
564
324
486
274
412
IMS2-0405-V5-F1-E0
513
769
481
722
411
616
342
513
IMS2-0513-V5-F1-E0
585
878
558
837
474
711
392
587
IMS2-0585-V5-F1-E0
628
942
595
893
508
762
424
636
IMS2-0628-V5-F1-E0
775
1163
756
1134
637
956
521
782
IMS2-0775-V5-F1-E0
897
1346
895
1342
749
1123
604
906
1153
1730
1403
2105
1574
Note:
2361
i
1049
1302
1486
1574
1953
2229
917
1135
1290
1376
1703
1936
791
970
1091
6
IMS2-0897-V5-F1-E0
1187
i
IMS2-1153-V5-F1-E0
1454
i
IMS2-1403-V5-F1-E0
1637
i
IMS2-1574 -V5-F1-E0
Available on indent only.
Dimensions (mm) and weights (kg)
A
B
C
a
b
IMS2-0018 to IMS2-0047
380
185
180
365
130
6
IMS2-0067 to IMS-0125
380
185
250
365
130
7
IMS2-0141 to IMS2-0238
425
270
275
410
200
17.5
IMS2-0253
425
390
275
410
300
23
IMS2-0302 to IMS2-0585
690
430
294
522
320
42
IMS2-0628 to IMS2-0897
690
430
294
522
320
49
IMS2-1153 to IMS2-1574
845
574
353
707
500
110
kg
Note: Also available in
enclosed format.
Consult your nearest
NHP branch.
Price Schedule ‘B3’
GST not included
6 - 19
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11:46 AM
Page 20
Electronic motor starters
IMS2 series – technical/ordering details
Standards and approvals:
AS/NZS 3947-4-2,
C-Tick, CE, CSA, UL
AC 53b BYPASSED OPERATION
IMS2 maximum motor FLC ratings - Based on 10 starts/hour equally spaced, 45 °C
Light duty
3 x FLC,
10 sec
3 wire 6 wire
6
Medium duty
3.5 x FLC,
15 sec
3 wire 6 wire
Heavy duty
4 x FLC,
20 sec
3 wire 6 wire
Severe duty
4.5 x FLC,
30 sec
3 wire 6 wire
18
27
18
27
16
24
14
20
IMS2-0018-V5-F1-E5
34
51
34
51
34
51
28
42
IMS2-0034-V5-F1-E5
41
62
41
62
41
62
34
52
IMS2-0041-V5-F1-E5
47
71
47
71
47
71
39
59
IMS2-0047-V5-F1-E5
67
101
62
94
54
82
47
71
IMS2-0067-V5-F1-E5
88
132
82
122
71
106
61
91
IMS2-0088-V5-F1-E5
96
144
90
136
78
117
66
99
IMS2-0096-V5-F1-E5
125
188
120
181
103
155
88
132
IMS2-0125-V5-F1-E5
141
212
127
190
111
166
96
145
IMS2-0141-V5-F1-E5
202
303
187
281
162
243
140
210
IMS2-0202-V5-F1-E5
238
357
224
336
194
290
166
250
IMS2-0238-V5-F1-E5
254
381
228
342
198
297
172
259
IMS2-0253-V5-F1-E5
302
453
285
427
245
368
209
314
IMS2-0302-V5-F1-E0
405
608
395
592
336
504
282
424
IMS2-0405-V5-F1-E0
513
770
513
770
435
653
356
534
IMS2-0513-V5-F1-E0
585
878
585
878
504
756
410
614
IMS2-0585-V5-F1-E0
628
942
626
939
528
793
436
654
IMS2-0628-V5-F1-E0
775
1163
775
1163
672
1009
542
813
IMS2-0775-V5-F1-E0
897
1346
897
1346
798
1197
632
948
1153
1730
1153
1730
1006
1509
850
1276
i
IMS2-1153-V5-F1-E0
IMS2-1403-V5-F1-E0
IMS2-1574-V5-F1-E0
IMS2-0897-V5-F1-E0
1403
2105
1403
2105
1275
1912
1060
1591
i
1574
2361
1574
2361
1474
2212
1207
1811
i
Optional extras
Cat. No.
Fast acting semiconductor fuses (400 V AC applications)
For model IMS2-0018 (3 required)
For model IMS2-0034 (3 required)
For models IMS2-0041 to IMS2-0067 (3 required)
For models IMS2-0088 to IMS2-0125 (3 required)
For model IMS2-0141 (3 required)
For models IMS2-0202 and IMS2-0405 (3 required)
For models IMS2-0238 to IMS2-0302 (3 required)
For model IMS2-0513 (3 required)
For models IMS2-0585 to IMS2-0628 (6 required)
For model IMS2-0775 (6 required)
For models IMS2-0897 to IMS2-1574
(Consult NHP)
Semiconductor fuse holders (1 holder per fuse)
For 63AFE and 160AFEE
For 200FM, 250FM, 280FM, 500FMM, 630FMM and 700FMM
Fieldbus communication modules 1)
DeviceNet, Interbus-S, Profibus
(Consult NHP)
Remote operator panel
Remote operator/fault and status display unit
Notes:
Price Schedule ‘B3’
63AFE
160AFEE
200FM
250FM
280FM
500FMM
630FMM
700FMM
500FMM
700FMM
170H1007
170H3003
RCM-0
i
Available on indent only.
)AuCom PP, Modbus ASCII and Modbus RTU as standard.
)Nett price only.
Also available in enclosed format. Consult your nearest NHP branch.
1
2
6 - 20
Cat. No.
GST not included