Specifications

35
STATUS CODE
-25
DESCRIPTION
1A contactor does not drop out or drops out slowly.
Yes
MEMORY
RECALL
CONTROL
TYPE
STATUS INDICATION CRITERIA
This status code is displayed when 1A contactor drop
out time exceeds .060 seconds.
Traction
STATUS CODE
-24
DESCRIPTION
T2 voltage low. (Less than 12% battery volts.)
No
MEMORY
RECALL
CONTROL
TYPE
Traction
Figure 1
Figure 1
STATUS INDICATION CRITERIA
This status code is displayed when T2 volts is greater
than 12% of battery volts and the F and R driver is
energized.
SYMPTOM
Short tip life on F and R or 1A contactor. Status code 46
displayed and no fault found.
POSSIBLE CAUSE
Note: This status code can only be found by using the
handset and looking at function 1. This status code is
furnished as a troubleshooting aid for status code 46.
Defective 1A contactor
 Check 1A contactor for binding or slow operation
when dropping out.
SYMPTOM
SCR control does not operate. Status code may alternate between
code 23 and code 24. Complete checks for 24, if the problem is not
found, perform code 23 check.
POSSIBLE CAUSE
Defective F or R contactor.
 F or R power tips fail to close because:
1) Welded normally closed power tips.
2) Binding contactor tip assembly.
3) Defective F or R contactor coil.
( See status code 23)
Defective RB contactor.
 Check RB contactor power tips for closure and proper pick
up.
 Check for open circuit or loose connections between
positive side of RB contactor coil and PB2.
Open motor circuit
 Check for open circuit or loose connection in motor circuit
from the A1 connection to the A2 connection on the SCR
control panel.
Defective 1A,RB,SP or FW contactor
 Perform checks as outlined in status 23.