GE IC3645SR4R333AS2 Installation And Operation Manual page 30

DIAGNOSTIC STATUS CODES
SX TRANSISTOR CONTROL
TRACTION DESCRIPTION OF STATUS
STATUS CODE
The input from the tach sensor has
-81
been lost or the motor has stalled.
MEMORY RE ALL C
YES
SYMPTOM
Control will not operate.
Circuits valid
for
POSSIBLE CAUSE
Bad tachometer
Traction
·
Controller
Lost wire from tachometer.
·
Motor has stalled.
Defective control.
· Replace controller unit
CORRECTIVE ACTIONS
Replace tachometer
Verify tach connections.
CAUSE OF STATUS INDICATION
This status code will be displayed when the control is
not seeing any tach pulses.
TROUBLE-SHOOTING DIAGRAM
FU3
DRIVER
BLOCK
2
3
1
B
LEFT CONTROL (MASTER)
LINE
FU1
48V
+
+
POS
- POWER CONNECTIONS
LEFT CONTROL
12V
-
NEG
Page 30
KEY SWITCH
P10
P1 P17 P2 P6
P12
P18
P21 P11
RIGHT
CONTROL
(SLAVE)
A1 F1
A2 F2
May 2000