Publication 2364F-5.05 - March 1999
Troubleshooting Faults and Warnings
3-5
Troubleshooting Faults and
Warnings
The following list provides information for understanding and trouble-
shooting each fault or warning condition in the RGU.
Parameters can be stored in the internal memory of a GPT or Series B HIM,
or can be stored and printed out using DriveTools software.
Important: Always record or store parameters before upgrading firmware
or replacing the main control board.
!
ATTENTION: Do not attempt to alter or modify any printed
circuit boards. Any attempt to alter or modify boards may result
in personal injury or property damage.
Number Fault
Indicates
Action
0
P174 bit 0
ROM Bad CRC
Program memory error detected.
Try restarting the RGU, verify that all connections to the main control
board are in place, and check the main control board for any obvious
damage or any debris which may be shorting circuitry. If necessary,
try reinstalling the firmware (or upgrade to the latest available
firmware). Replace the board and/or send the board in for repair if
the problem cannot be resolved.
1
P174 bit 1
RAM Error
RAM error detected.
Try restarting the RGU, verify that all connections to the main control
board are in place, and check the main control board for any obvious
damage or any debris which may be shorting circuitry. If necessary,
try reinstalling the firmware (or upgrade to the latest available
firmware). Replace the board and/or send the board in for repair if
the problem cannot be resolved.
2
P174 bit 2
BatRAM Err
Battery-backed RAM error detected.
Try restarting the RGU, verify that all connections to the main control
board are in place, and check the main control board for any obvious
damage or any debris which may be shorting circuitry. If necessary,
try reinstalling the firmware (or upgrade to the latest available
firmware). Replace the board and/or send the board in for repair if
the problem cannot be resolved.
3
P174 bit 3
DSP Load
Error detected while loading DSP program
memory at startup.
Try restarting the RGU, verify that all connections to the main control
board are in place, and check the main control board for any obvious
damage or any debris which may be shorting circuitry. If necessary,
try reinstalling the firmware (or upgrade to the latest available
firmware). Replace the board and/or send the board in for repair if
the problem cannot be resolved.
4
P174 bit 4
FPGA Load
Error detected while loading FPGA firmware
at startup.
Try restarting the RGU, verify that all connections to the main control
board are in place, and check the main control board for any obvious
damage or any debris which may be shorting circuitry. If necessary,
try reinstalling the firmware (or upgrade to the latest available
firmware). Replace the board and/or send the board in for repair if
the problem cannot be resolved.
5
P174 bit 5
Iq Foldback
W
The current is being limited due to high
heatsink temperatures.
The internal wiring may be at risk of overheating. Check that the
door fans are operating properly, and verify that the RGU is operating
at the appropriately derated current (see the specifications appendix
in 2364F-5.01). Verify that the RGU is not operating in overload for
an extended period of time.
Note:
‘W’ indicates that the condition is normally reported as a warning, rather than a fault.