GE 239 Instruction Manual page 24

2 CT CONNECTION
(NO GROUND)
PHASE A CT
1 2 3 4 5
5A 1A COM 5A 1A COM
PHASE A PHASE B
STARTER
SUPPLY
A
B
C
CONTACTOR
COIL
CONTROL
POWER
N L
START
STOP
CC
GENERAL ALARM
ACCESS
KEY SWITCH
EMERGENCY
RESTART
EXTERNAL
RESET
OPTION 1
OPTION 2
2–18
Courtesy of NationalSwitchgear.com
L1
L2
PHASE C CT
L3
6 7 8 9 10 11 12
5A 1A COM 5A 50:0.025 COM
PHASE C GROUND
L1
L2
L3
CONTROL POWER
80-300 VDC
70-265 VAC 50/60 Hz
13 14 36 37
N
L
SAFETY FILTER
SWITCHGEAR
+ -
GROUND BUS GROUND GROUND
CONTROL
POWER
23 NO
RELAY #1
24 COM
TRIP
25 NC
26 NO
RELAY #2
27 COM
ALARM
28
NC
29
NO
RELAY #3
COM
30
AUXILIARY
31 NC
32 NO
RELAY #4
33 COM
SERVICE
34 NC
43 IN
SETPOINT
ACCESS
38
COM
44 IN
EMERGENCY
RESTART
39 COM
IN
45
EXTERNAL
RESET
40 COM
46 IN
OPTION 1
41 COM
47 IN
OPTION 2
42 COM
NOTES:
1)
RELAY CONTACT STATE SHOWN WITH
CONTROL POWER NOT APPLIED.
2) RELAY FACTORY DEFAULTS:
TRIP, ALARM, AUXILIARY:
SERVICE: FAILSAFE
FIGURE 2–3: Typical Wiring Diagram
RESIDUAL GROUND CONNECTION
PHASE A CT
PHASE B CT
PHASE C CT
1 2 3 4 5 6 7 8
5A 1A COM 5A 1A COM 5A 1A
PHASE A PHASE B PHASE C
ZERO SEQUENCE GROUND CONNECTION
PHASE A CT
PHASE B CT
PHASE C CT
1 2 3 4 5 6 7 8
5A 1A COM 5A 1A COM 5A 1A
PHASE A PHASE B PHASE C
CURRENT INPUTS
GE Power Management
239 MOTOR PROTECTION RELAY
485 GROUND
THERMISTOR
S1
S2
S3
S4
S5
3) SHIELD TERMINALS ARE INTERNALLY
CONNECTED TO SAFETY GROUND
TERMINAL 13
NON-FAILSAFE 4) RTD TEMPERATURE SENSING
AND ANALOG OUTPUT OPTIONAL
239 MOTOR PROTECTION RELAY – INSTRUCTION MANUAL
CHAPTER 2: INSTALLATION
L1
L2
L3
9 10 11 12
COM 5A 50:0.025 COM
GROUND
50:0.025
GROUND CT
L1
L2
MOTOR
L3
TWIST
LEADS
9 10 11 12
COM 5A 50:0.025 COM
GROUND
USE SHIELDED TWISTED
PAIR WIRE
RS485 + 15
RS485
RS485 - 16
17
THERMAL
CAPACITY
18
19
SHIELD 20
IN+ 21
STATOR
THERMISTOR
COM 22
SHIELD 48
HOT 49
STATOR
50
COMP
RTD
51
RET
HOT 52
STATOR/
COMP 53
BEARING RTD
RET
54
HOT 55
STATOR/
COMP 56
BEARING RTD
RET 57
USE SHIELDED WIRE
819751B5.DWG
819829B6.CDR