Eaton ELC2 Series Instruction Sheet

Also see for ELC2 Series: Instruction sheet Instruction sheet

- 10 -supply. If the indicator is still off at this time, your ELC2 is malfunctioned. Sendyour ELC2 back to your distributor for repair.☼ RUN indicatorCheck your ELC2 status. When ELC2 is running, this indicator will be on. You canuse ELC-HHP, the ladder diagram editing program or the switch on the panel toRUN or STOP ELC2.☼ ERROR indicatorIf you enter an incorrect program into ELC2 or use instructions or devices thatexceed their range, this indicator will flash (approx. every 1 second). When thishappens, you have to obtain the error code from D1004 and save the addresswhere the error occurs in register D1137 (if the error is a general circuit error, theaddress of D1137 will be invalid). Find out the cause of the error, amend theprogram and resend the program to ELC2. If you cannot connect to ELC2 and thisindicator keeps flashing quickly (approx. every 0.2 second), it means that the 24Vdc power voltage is insufficient. Please check if the 24V DC power supply isoverloaded.If the ERROR indicator is on, you have to check the special relay M1008. IfM1008 is on, it indicates that the execution time of program loop exceeds thepreset time-out (in D1000). In this case, turn the RUN/STOP switch to STOP,check the special register D1008 and obtain the location in the program where thetime-out takes place. Please refer to the WDT instruction to solve this problem.After amending the program, you only need to resend the program to stop theindicator from flashing. If the indicator still keeps flashing at this time, switch offthe power and check if there is any interference existing or conductive matterinside ELC2.For details of error codes (in D1004, hex coding), see “ELC System Manual:Programming”.☼ Input indicatorOn/Off of input point is indicated by input indicator or monitored by ELC-HHP.When the action condition of the input point is true, this indicator will be on. Ifabnormality is identified, check if the indicator and input circuit are normal. Use ofelectronic switch with too much electricity leakage often results in unexpectedactions of the input point.☼ Output indicatorOn/Off of output point is indicated by the output indicator. When the outputindicator (On/Off) does not correspond to the action of its load, please be aware ofthe following:1. The output contact may be melted or blocked due to an over loaded orshort-circuited load, which will result in poor contact.2. If you are suspicious that the output point may execute an undesired action,check the output wiring circuit and whether the screw is properly tightened.☼ COM1, COM2, and USB indicatorsIf the RS232/USB LED indicator is On, it means that COM1/the USB port isreceiving data.If the RS485 LED indicator is On, it means that COM2 is sending data.

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