Big Joe PTE 30 Series, Operation, Maintenance, Repair Parts List, Page: 20 / 96

4-4 901467
4-2. TRANSISTOR CONTROLLER TROUBLE-
SHOOTING
4-2.1. Fault Detection.
The controller provides diagnostics information to
assist technicians in troubleshooting drive system
problems. When a fault is detected, the appropriate
fault code is signaled via the LED, externally visible on
the side of controller (See
Figure 4-1 for LED location
on controller). The diagnostic codes flashed by the
LED are listed in
Table 4-3 .
If the fault is critical, the controller is automatically dis-
abled. Faults can be caused internally (e.g. shorted
transistors) or externally (e.g., wrench or hardware
dropped across controller terminals).
To recover from a fault, the F/R switch must be turned
off and back on again. If the fault has been corrected,
the controller will turn back on.
Figure 4-1. Status LED
Figure 4-2. Electrical Panel Parts
R6528
R6517A