C h a p t e r 1 2 Tr o u b l e s h o o t i n g1 2 - 712_12.2.3 ERROR LED Indicators Blinking Rapidly Every 0.2 SecondsThis happens when the power supply 24 VDC of the CPU module is disconnected, or the power supply is not sufficient,not stable or abnormal.ErrorCode(16#)Description Solution Flag Log002A The external voltage is abnormal. Check whether the external 24 V power supply to themodule is normal. SM7 V12.2.4 ERROR LED Indicators Slow Blinking Every 3 Seconds andLighting up for 1 SecondErrorCode(16#)Description Solution Flag Log1500 Connection lost in the remotemodules Check the network connection cable. SM30 V1502-150FErrors occurred in the remotemodulesRefer to Section 12.3.4 for more information on theremote module error codes. SM30 V1800-180FErrors occurred in the extensionmodulesRefer to Section 12.3 for more information on theextension module error codes. SM10 V1900-191CHeartbeat errors occurred in theslave for the Delta ASD-A2 control.1. Check the CANopen connection cable.2. Check if the specific slave is working properly.Note: The last 2 digits of the error code represent the IDnumber of the slave (convert hexadecimal to decimal).- V12.2.5 BAT. LOW LED Indicators Are ONThis happens when there is no battery (CR1620) or the power is low. Turn this option off in the HWCONFIG > CPU >Device Setting > Show Battery Low Voltage Error CPU when you don’t need the RTC function to keep track of the currenttime (default is enabled).ErrorCode(16#)Description Solution Flag Log0027 Battery Low Change battery or turn this option off SM219 X12.2.6 BAT. LOW LED Indicators Blinking Every 0.5 SecondsThis happens when RTC cannot keep track of the current time.ErrorCode(16#)Description Solution Flag Log0026 RTC cannot keep track of thecurrent time Contact the factory. SM218 V
