AS Series Module Manual
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4.5 Troubleshooting
4.5.1 Error Codes
Error
Code
Description
D
A LED
Indicator
ERROR LED
Indicator
16#1605
Hardware failure OFF ON
16#1607
The external voltage is abnormal. OFF ON
16#1608
The factory calibration is abnormal. OFF ON
16#1801
The external voltage is abnormal. OFF Blinking
16#1802
Hardware failure OFF
Blinking
16#1804
The factory calibration is abnormal. OFF
Blinking
-
When power-on, the module is not detected by CPU module. OFF
Blinking once
or twice and
after 2
seconds, it
blinks
repeatedly
4.5.2 Troubleshooting Procedure
Description Procedure
The external voltage is abnormal.
Ensure the external 24 V power supply to the module is
functioning normally.
Hardware failure Return the module to the factory for repair.
Internal error
The factory calibration is abnormal.
Contact the factory.
When power-on, the module is not detected by
CPU module.
Check if the connection between module and CPU
module is working. If not, connect again.
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