TM 5-3895-374-24-1
Chapter 9
Troubleshooting
Identifying 5/01 and 5/02 Processor Errors
Refer to the following key to determine the status of the LED indicators
Indicates the LED is OFF
Indicates the LED is ON
Indicates the LED is FLASHING
Status of LED does not matter.
The RUN LED on the 5/01 processor is actually labeled "PC RUN"
Also, the 5/01 processor does not have a COMM LED.
The Following
Probable Cause
Recommended Action
Error Exists
1.
Verity proper line voltage and connections on the
power terminals
No Line Power
2.
Verify proper 120/240V power supply jumper
selection See page 5-5
1.
Check the incoming power fuse, check for proper
Power Supply
incoming power connections Replace fuse
Fuse Blown
2.
If fuse blows again, replace the power supply
See page 8-8 on fuse replacement
1.
Remove line power to power supply Remove
several output modules from the chassis. Wait five
Inadequate
minutes. Reapply power
System Power
2.
If condition reoccurs, re-calculate module
Power Supply
configuration power required and verify proper
Overloaded
power supply selection See page 1-7
This problem can occur intermittently if power supply is
slightly overloaded when output loading and
temperature varies
1.
Recheck other probable causes
Defective Power
2.
Monitor the line power to chassis power
Supply
supply for possible transient or shorting
3.
Replace the power supply
The Following
Probable Cause
Recommended Action
Error Exists
Inadequate
Improper Line
Verify proper 120/240V power supply jumper selection.
System Power
Selection
See page 5-5.
(page 3-437)
