Allen-Bradley SLC 500 1747-L511, Инструкция по установке и эксплуатации

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10–5 Troubleshooting
Publication 1747-6.2
The Following
Error Exists
Probable Cause Recommended Action
Either Improper
Mode Selected or
User Program
Logic Error
1. Verify selected processor mode.
2. If in program/test modes attempt Run mode entry.
3. If in suspend mode, check user program logic for
suspend instructions.
Refer to either the Hand-Held Terminal User Manual
(Catalog Number 1747-NP002) or your programming
software user manual.
Line Power Out of
Operating Range
1. Check proper 120/240V power supply jumper
selection and incoming power connections.
2. Monitor for proper line voltage at the incoming
power connections.
See page 6–8 for power supply installation.
Processor Not in
Run Mode
Improper Seating
of Power Supply,
and/or Processor
in the Chassis
1. Remove power and inspect the power supply
chassis connections and the processor chassis
connections.
2. Re-install the devices and re-apply power.
Important: The processor only operates in slot 0 of
chassis #1.
Defective
Processor, Power
Supply or Chassis
1. Attempt Run mode selection of Processor in
existing chassis.
2. Place processor in another chassis not in the
existing system. Apply power, reconfigure and attempt
Run mode selection. If unsuccessful, replace
processor.
3. Try existing power supply in test chassis. If
unsuccessful, replace power supply. If entry into the
Run mode is allowed, replace the existing chassis.
Refer to the following key to determine the status of
the LED indicators:
Indicates the LED is OFF.
Indicates the LED is ON.
➀
The RUN LED on the SLC 5/01 processor is
actually labeled “PC RUN.” Also, the
SLC 5/01 processor does not have a COMM
LED.
Indicates the LED is FLASHING.
Status of LED does not matter.
POWER RUN
CPU FAULT
FORCED I/O
BATTERY LOW
COMM
If the LEDs indicate:
➀