A S S e r i e s O p e r a t i o n M a n u a l1 2 - 1 8_1212.3 Troubleshooting for I/O Modules Introduction to troubleshotting modulesDigital I/O, analog I/O, temperature measurement, positioning, counter, load cell, and network modules can beinstalled in an AS Series system. There are 2 types of error codes; error and warning. The CPU module and itsmodules stop operating when errors occur. The CPU modules and its modules do not stop operating when warningsare triggered.12.3.1 Troubleshooting for Analog Modules (AD/DA/XA) andTemperature Modules (RTD/TC)12.3.1.1 ERROR LED Indicators Are ONYou can set up HWCONFIG to have the following errors appear as warnings when they occur. Otherwise, when an erroroccurs, only an error message appears.ErrorCode Description Solution16#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 isabnormal. Contact the factory.12.3.1.2 ERROR LED Indicators Blinking Every 0.2 SecondsThe following errors are specified as warnings to ensure that the CPU module can still run even when the warnings aretriggered by its AIO modules. The following first 4 error codes are set as warnings by default in HWCONFIG; CPU mustSTOP running immediately when the first 4 errors occur.ErrorCode Description Solution16#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#1808The signal received by channel 1exceeds the range of analog inputs(temperature).Check the signal received by channel 116#1809The signal received by channel 2exceeds the range of analog inputs(temperature).Check the signal received by channel 216#180AThe signal received by channel 3exceeds the range of analog inputs(temperature).Check the signal received by channel 316#180BThe signal received by channel 4exceeds the range of analog inputs(temperature).Check the signal received by channel 416#180CThe signal received by channel 5exceeds the range of analog inputs(temperature).Check the signal received by channel 5
