Delta AH500 series, Hardware Operation Manual

Page: 611 / 681

A H 5 0 0 H a r d w a r e a n d O p e r a t i o n M a n u a l
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12.4 Error Codes and LED Indicators
A.
Columns
a.
Error code: If the error occurs in the system, the error code is generated.
b.
Description: The description of the error
c.
CPU status: If the error occurs, the CPU stops running, keeps running, or in the status defined by
users.

Stop: The CPU stops running when the error occurs.

Continue: The CPU keeps running when the error occurs.

Self-defined: The status of the CPU can be defined by users. Please refer to section 8.2.1 in this
manual for more information.
d.
LED indicator status: If the error occurs, the LED indicator is ON, OFF, or blinks.

ERROR: The system error

BUS FAULT: The I/O bus error

Module ERROR: The module error

LED indicators
LED indicator Description
CPU
ERROR
The status of the CPU
ON: A serious error occurs in the system.
OFF: The system is normal.
Blinking: A slight error occurs in the system.
BUS FAULT
The status of the I/O bus
ON: A serious error occurs in the I/O bus.
OFF: The I/O bus is normal.
Blinking: A slight error occurs in the I/O bus.
Module ERROR
The status of the module
ON: A serious error occurs in the module.
OFF: The module is normal.
Blinking: A slight error occurs in the module.