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GE Power Management
269Plus Motor Management Relay
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GE Power Management
269Plus Motor Management Relay
Offering optimum motor protection
in situations where other relays
cannot, the 269 Plus Motor
Management Relay possesses the
unique feature of its ability to
“learn” individual motor parameters,
giving it the flexibility to adapt to
each
application by “learning” values of
motor inrush current, negative
sequence current K factor, cool
down rates, start thermal capacity
and acceleration time.
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GE Power Management
269Plus Motor Management Relay
Presentation Overview
 Applications
 User Interface
 Metering and
Monitoring
 Inputs and
Outputs
 Protection and
Control
 Typical Wiring
 Communications
 Ordering
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GE Power Management
269Plus Motor Management Relay
Applications
The 269 Plus is a microprocessor based
product designed to provide complete and
accurate protection for industrial motors
and their associated mechanical systems.
 Three phase AC motors
 Mechanical system protection
MAIN
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GE Power Management
52
50
50G
4160V BUS
(4)
ISOLATED
ANALOG
OUTPUTS
400A
Applications
COMMUNICATION
with
METERING OPTION
VOLTS
METERING OPTION
AMPS
MPM
FUNCTIONAL
BLOCK
DIAGRAM
FUSED
CONTACTOR
48 46 66
3
PHASE CTs
/
50 51 49 37
50G
GROUND CT
86
TRIP
RELAY
51G
47 55 27
74
AMBIENT AIR
STATOR RTDs
RTD
BEARING RTDs
ALARM
RELAY
38
26
9Plu sRELAY
RELAY
269PLUS
LOAD
MOTOR
14
AUXILIARY
RELAY #1
SPEED DEVICE
CONTACTS
87
37
49
DIFFERENTIAL
RELAY CONTACTS
14
87
AUXILIARY
RELAY #2
SELF TEST
ALARM
Legend
52b
RS485
SPARE INPUT
STARTER AUXILIARY B CONTACT
REMOTE
COMMUNICATION
MAIN
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GE Power Management
Applications
DEVICE
PROTECTION
14
37
38
46
48
49
49/51
50
50G/51G
50N/51N
52b
74
86
Speed Device
Undercurrent/Minimum Load
Motor/Load Bearing Overtemperature
Unbalance - Negative Sequence
Multiple Starts/Locked Rotor
Stator Winding Overtemperature
Overload Curves/FlexCurves
Short Circuit/Mechanical Jam/Rapid Trip
Zero Sequence Ground Fault
Residual Ground Fault
Breaker
One Alarm Relay, Two Auxiliary Relays
Main Trip Latched Relay
Auxiliary Relay No. 1
Auxiliary Relay No. 2
Differential Relay Contact Input
Starts per hour
Volts Phase Reversal (Meter Option)
Undervoltage (Meter Option)
Frequency (Meter Option)
Power Factor (Meter Option)
87
66
47
27
55
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GE Power Management
269Plus Motor Management Relay
Protection
 Stator winding
overtemperature
 User defined overload
FlexCurveTM
 Phase reversal
(meter option)
 Bearing
overtemperature
 Locked rotor
 Ground fault
 Multiple starts
 Rapid trip/mechanical jam
 Overloads
 Unbalance/single phasing
 Variable lock out time
 8 standard overload
curves
 Short circuit
 “Learns” individual
motor parameters
 Undercurrent
MAIN
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GE Power Management
269Plus Motor Management Relay
Start and Running
 Motor is protected under both Acceleration and Running
conditions
The 269 Plus can trigger an alarm or trip the motor based on:
 normal acceleration time
 number of starts per hour
 multiple starts
 time between starts
 motor overload conditions
MAIN
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GE Power Management
Protection
Overload
 One of eight standard overload curves may be programmed based on
motor manufacturer’s locked rotor time capability.
 Alternately, the user may program in a custom curve using the builtin FlexCurve™ function.
View 8 Standard
Overload Curves
MAIN
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GE Power Management
Protection
8 Standard
Overload Curves
 The motor’s service factor value is
entered as the overload pickup level
Full Load Current Setpoint
Multiples of Full Load Current Setpoint
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GE Power Management
Protection
FlexCurve™
6500 HP, 13800 Volt INDUCED DRAFT FAN MOTOR
When a FlexCurve is programmed,
the 269 Plus develops a smooth
custom overload curve within a
selected range.
1
2
2) Running Safetime (Rotor
Limited)
3
FlexCurve can be used to protect
motors which have different rotor
and stator damage, allowing total
motor design capacity with
complete protection.
1) Programmed 269 Plus
Custom Curve
3) Acceleration Safetime
(Rotor Limited)
4) Motor Current @ 100%
Voltage
4
5
5) Motor Current @ 80%
Voltage
Multiples of Full Load Current Setpoint
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GE Power Management
Protection
Thermal Modeling
The Thermal Model within the 269Plus has the ability to compute
the motor I2t value based on actual motor load current.
 thermal model calculates value in terms of thermal capacity used
 RTDs (resistance temperature units) measuring stator temperature
act as a thermal capacity check to confirm value calculated by
thermal model. RTDs may be used for monitoring stator, bearing,
ambient, or other temperature monitoring.
 thermal capacity used is then updated to reflect the higher of the
two values
MAIN
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GE Power Management
Protection
Motor Match
MotorMatch modifies the initially entered relay parameters
to match actual measured motor characteristics. The key
elements include:
 accumulated I2t in the memory
 RTD input to the memory
 learned cooldown time from run to stop
 learned cooldown time from runoverload to run-normal
 learned acceleration time
 learned negative sequence contribution (K-factor)
MAIN
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GE Power Management
Protection
RTD Hot Motor Compensation
When hot motor compensation is enabled:
 RTD feedback from actual stator temperature checks
the thermal capacity model
 User has the capability to match the motor thermal
characteristics with a dual slope RTD bias curve
 The two part curve allows for easy fitting of hot and cold
motor damage curves to the RTD bias feature
MAIN
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GE Power Management
269Plus Motor Management Relay
User Interfaces
 PC Software for setting, monitoring
 48 character alpha-numeric backlit
LCD display
 Five Target LED indicators
 MPM (meter) com port
 RS485 com port (ModBus® RTU)
MAIN
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GE Power Management
User Interfaces
HELP KEY
 Help key can be pressed at
any time to provide additional
information
PROTECTIVE COVER
 Rugged, corrosion and flame
retardant case
 Meets IP53/NEMA 12
MAIN
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GE Power Management
User Interfaces
DISPLAY
I 1=120
I 3=121
I 2=120
(AMPS)
 48 Character alpha-numeric backlit
LCD display for viewing actual
values, causes of alarms and trips,
and programming setpoints.
STATUS INDCATORS
 5 LEDs indicate when an output is
activated. When an LED is lit the
cause of the output relay operation
will be shown on the display.
KEYPAD
 Used to select the display of actual
values, causes of alarms, causes of
trips, fault diagnosis and to
program setpoints.
MAIN
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GE Power Management
User Interfaces
4 OUTPUT RELAYS
CONTROL POWER
 Programmable alarm and
trip conditions activated by:
 programmable setpoints
 switch input
 remote communication
control
N C
2 9
3 0
A LA R M
N O R ELAY N C
3 1
A UX 1
N O R ELAY N C
3 2
3 3
A UX 2
N O R ELAY
3 4
C O N TR O L P O W E R
L ( + )N O
G
L2 /N (- )
3 5
3 6
3 7
TM 2 1 5
TM 2 0 6
TM 2 1 4
TM 2 0 5
TM 2 1 3
TM 2 0 4
TM 2 1 2
TM 2 1 7
TM 2 1 6
4
4
4
5
4
6
4
7
4
8
4
9
5
0
5
1
5
2
5
3
5
4
5
5
5
6
5
7
5
8
5
9
4
6
4
7
8
8
R2 2 8
M U L TI L I N
2 6 9 B2 0 0
R E V. C 6
0 8 /9 6
TM 2 0 3
TM 2 0 3
TM 2 0 2
TM 2 0 2
TM 2 0 1
TM 2 0 1
1
2
1
1
1
0
9
8
7
6
5
4
RTD 1-3
LINE
3 8
3 9
3
2
1
8 2
5
:1
8 1 8 0
P H A SE 2
C O M
7 9
5
:1
7 8 7 7
Phase and ground CT inputs
P H A SE 3
C O M
7 6
SH D
6
0
6
1
6
2
6
3
6
4
6
5
6
6
6
7
6
8
6
9
7
0
7
1
5
4 0
 120/125 AC/DC
 240/250 AC/DC
 24 AC/DC, 48 AC/DC
4 1
4 2
4 3
INPUTS/OUTPUTS
 Spare input
 MPM (meter) com port
 Differential relay input
 Speed switch input
 Access input
 Emergency restart
 External output
 Analog output
 RS485 com port
RTD 4-6
 Typically used for stator
winding protection
T2 0 4
P H A SE 1
C O M
T2 0 3
:1
8 3
T2 0 2
T2 0 1
 Typically used for stator
winding protection
+
S S. R
S T. R E S R S 4 8 5
WC. C EEM
S P A RM E E T EDR I F F.
S P. S A
EX
+++++++
+
-
TM 2 0 7
R S4 2 2
 Can be assigned to
monitor motor and load
bearings, and ambient
temperature
N C
G N D
J2 0 1
H PO T
R XR- X +
RTD 7-10
T R IP
R ELAY
G R O U N D FA U LT
2 0 0 0
C O M
:5
7 5 7 4
7 3
7 2
Contrast dial
MAIN
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GE Power Management
269Plus Motor Management Relay
Communications
Protocol

Modbus® RTU protocol
Terminals for RS485 located on rear port of the relay
 Successfull interface with many PLCs
such as Modicon, Square D, Allen Bradley
and GE Fanuc
MAIN
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GE Power Management
269Plus Motor Management Relay
Metering
Actual Values
 average and individual phase currents
 RTD temperatures (hottest, individual, maximum)
 unbalance ratio (%In/Ip)
 ground leakage current
 thermal capacity remaining / estimated time to trip
at present overload level
 motor load as a percent of full load
 phase to phase or phase to neutral voltage
(meter option)
 W, var, MWhr, PF, Hz (meter option)
MAIN
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GE Power Management
269Plus Motor Management Relay
Monitoring
Prior Alarms
 immediate overload/stall warning
 ground fault
 mechanical jam
 unbalance
 undercurrent
 RTD overtemperature, broken RTD sensor,
low temperature RTD
 self-test-service
 under/overvoltage (meter option)
 low power factor (meter option)
MAIN
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GE Power Management
269Plus Motor Management Relay
Monitoring
Fault Diagnosis
 269 Plus displays the cause of the trip and
will show the remaining lock-out time if applicable
 cause of the last trip and pre-trip values can be
recalled for rapid fault diagnosis.
MAIN
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GE Power Management
269Plus Motor Management Relay
Monitoring
Statistical Data (StatTracTM)
 StatTracTM provides statistical data of motor use for
operations monitoring, maintenance, and fault diagnosis.
 Using the Keypad, the user can display:
 running hours and number of starts since last commissioning
 number of all trips
 number of specific types of trips
 total Watt-hours (with meter option)
MAIN
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GE Power Management
269Plus Motor Management Relay
Inputs
 Speed Switch Input
 enables the user to use an external speed device
 Differential Relay Input
 provided terminals to accept contact closure from an external
differential relay
 all protective functions grouped through one main relay
 Spare Input
 spare input terminals configurable to represent either a standard contact input
(ie-pressure switch), or a specific contact input (circuit breaker/contactor status)
 52b contact from a circuit breaker = positive identification of the position of the
breaker(open or closed)
MAIN
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GE Power Management
269Plus Motor Management Relay
Outputs
 4 Output Relay Contacts
 Trip Relay as main latched output relay
 Alarm output relay (latched or unlatched)
 Auxiliary 1 output relay (latched or unlatched)
 Auxiliary 2 output relay
 Analog output
 Used to indicate motor thermal capacity used,
motor current, hottest stator RTD, bearing RTD, or CT
secondary current
MAIN
START STOP
FUSE
269Plus TYPICAL WIRING
GROUND
BUS
ALTERNATE CONNECTION
FOR
COMMON SHIELD
52b
METER COM PORT
EXTERNAL CONTACTS
EXTERNAL CONTACTS
JUMPER OR KEYSWITCH
KEYSWITCH
EXTERNAL RESET
AMMETER OR PROGRAMMABLE CONTROLLER
RS485 COM PORT
GROUNDED AT
MASTER ONLY
PHASE A CT
MOTOR
PHASE B CT
PHASE C CT
50:0.025 GROUND CT
ZERO SEQUENCE GROUND CONNECTION
PHASE A CT
MOTOR
PHASE B CT
PHASE C CT
RESIDUAL GROUND CONNECTION
(ALTERNATE)
MAIN
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O
R
D
E
R
C
O
D
E
269PLUS
269PLUS
*
* * *
*
*
Motor Management Relay
120
240
24DC
48DC
Standard version
Drawout version
Phase CT 1 Ground CT (required for D/O only)
:5
2000:1
:5
:5
:1
2000:1
:1
:5
Relay fail safe code2 (required for D/O only)
Trip
Alarm
Aux1
Aux2
FS
NFS
NFS
FS
NFS
FS
NFS
FS
FS
FS
NFS
FS
NFS
NFS
FS
FS
FS
NFS
FS
FS
NFS
FS
FS
FS
FS
FS
FS
FS
NFS
NFS
NFS
FS
3
Relay contact arrangement (required for D/O only)
Alarm
Aux1
Aux2
N.O.
N.O.
N.O.
N.O.
N.O.
N.C.
N.O.
N.C.
N.O.
N.O.
N.C.
N.C.
N.C.
N.O.
N.O.
N.C.
N.O.
N.C.
N.C.
N.C.
N.O.
N.C.
N.C.
N.C.
100 Ohm platinum RTD
10 Ohm copper RTD
100 Ohm nickel RTD
120 Ohm nickel RTD
120 AC/125 DC control voltage
240 AC/250 DC control voltage
24 DC control voltage
48 DC control voltage
SV
D/O
1
2
3
4
1
2
3
4
5
6
7
8
1
2
3
4
5
6
7
8
100P
10C
100N
120N
g
Contact :
GE Power Management
GE Power Management
215 Anderson Ave., Markham, Ont. Canada L6E 1B3
Tel: 905-294-6222
Fax: 905-201-2098
Email: [email protected]
269Plus Motor Management Relay