GE 869 - Page 61

CHAPTER 2: INSTALLATION ELECTRICAL INSTALLATION
869 MOTOR PROTECTION SYSTEM – INSTRUCTION MANUAL 2–13
These defaults are applied in EnerVista when you are creating a set point file. If settings
are done using the relay’s HMI, the user must ensure that the “Operation” set point for the
breaker or contactor is as noted above.
Figure 2-15: Typical wiring diagram (contactor application with open transition wye-
delta starter)
Figure 2-16: Speed2 Motor wiring diagram
89$1.cdr
J1 J2 J3 J4 J5 J6 J7 J8
F13
F14
F15
F16
F17
F18
F19
F20
DIGITAL INPUTS
DIGITAL INPUT 1
DIGITAL INPUT 2
DIGITAL INPUT 3
DIGITAL INPUT 4
DIGITAL INPUT 5
DIGITAL INPUT 6
DIGITAL INPUT 7
COMMON
CURRENT INPUTS
SLOT F: I/O_A
SLOT J
PHASE A PHASE B PHASE C GROUND
I
B
N
I
C
I
G
I
A
NN
SEE GROUND
INPUT WIRING IN
INSTRUCTION MANUAL
N
F21 +24 V
MOTOR
Phase A
Phase B
Phase C
MAIN
CONTACTOR
CONTACTOR APPLICATION
WITH WYE- DELTA OPEN
TRANSITION STARTER OPTION
TRIP
CLOSE/ AUX
START INHIBIT
AUXILIARY
CRITICAL
FAILURE
RELAY
F3
F4
F5
F6
F7
F8
F9
F10
F11
F12
F22
F23
F24
V
V
OUTP UT R EL AY S
F1
F2
WYE
CONTACTOR
(52)
DELTA CONTACTOR
52a
52b
Typical auxiliary
contacts connection
START
STOP
CONT
COIL
CC
+
DC
WC
WYE
COIL
DELTA
COIL
-
MAIN
TERMINAL SIDE CTs
869
89$1.cdr
J1 J2 J3 J4 J5 J6 J7 J8
CURRENT INPUTS
SLOT J
PHASE A PHASE B PHASE C
GROUND
I
B
N
I
C
I
G
I
A
NN
TERMINAL SIDE CTs
N
Phase A
Phase B
Phase C
SWITCHING
DEVICE (52)
MOTOR
TERMINAL SIDE CTs
H
H
H
L
L
L
Notes: Speed 1 = L & Speed 2 = H
Ground CT