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AS Series Operation Manual

12-18

_12

12.3

Troubleshooting for I/O Modules

 Introduction to troubleshotting modules

Digital I/O, analog I/O, temperature measurement, positioning, counter, load cell, and network modules can be

installed in an AS Series system. There are 2 types of error codes; error and warning. The CPU module and its

modules stop operating when errors occur. The CPU modules and its modules do not stop operating when warnings

are triggered.

12.3.1

Troubleshooting for Analog Modules (AD/DA/XA) and

Temperature Modules (RTD/TC)

12.3.1.1 ERROR LED Indicators Are ON

You can set up HWCONFIG to have the following errors appear as warnings when they occur. Otherwise, when an error

occurs, only an error message appears.

Error

Code

Description Solution

16#1605 Hardware failure Contact the factory.

16#1607

The external voltage is abnormal.

Check the power supply.

16#1608

The factory calibration or the CJC is

abnormal.

Contact the factory.

12.3.1.2 ERROR LED Indicators Blinking Every 0.2 Seconds

The following errors are specified as warnings to ensure that the CPU module can still run even when the warnings are

triggered by its AIO modules. The following first 4 error codes are set as warnings by default in HWCONFIG; CPU must

STOP running immediately when the first 4 errors occur.

Error

Code

Description Solution

16#1801 The external voltage is abnormal. Check the power supply.

16#1802

Hardware failure

Contact the factory.

16#1804

The factory calibration is abnormal.

Contact the factory.

16#1807

The CJC is abnormal.

Contact the factory.

16#1808

The signal received by channel 1