Eaton ELC2 Series Instruction Sheet

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- 8 - The output of the transistor model is “open collector”. If Y0/Y1 is set to pulse output, theoutput current has to be bigger than 0.1 A to ensure normal operation of the model.1. Diode suppression: Used when in smaller power [Figure 13a]2. Diode + Zener suppression: Used when in larger power and frequent On/Off [Figure 13b] Manually exclusive output: For example, Y2 and Y3 control the forward running and reverserunning of the motor, forming an interlock for the external circuit, together with the ELCinternal program, to ensure safe protection in case of any unexpected errors. RS-485 Wiring[F igu re 14]D+ D- SG D + D- SG SG D+ D-341 2 234○1 Client node ○2 Server node○3 Terminal resistor ○4 Shielded cableNote:1. Terminal resistors are suggested to be connected to client node and the last server nodewith resistor value of 120Ω.2. To ensure communication quality, please apply double shielded twisted pair cable (20AWG)for wiring. Precision of the RTC (Second/Month)Temperature(°C/°F) 0/32 25/77 55/131Maximum error(Second) -117 52 -132Duration in which the RTC is latched: One week Troubleshooting & Indicator DescriptionBased on the indicators on the front panel, please check the following for errors:☼ POWER indicatorWhen ELC2 is powered, the POWER LED indicator on the front panel will be on(in green). If this indicator is not on or the ERROR indicator keeps flashing whenELC2 is powered indicates that the power supply +24V are insufficient or DCpower supply 24V is overloaded. In this case, change another 24V DC powersupply. 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 the24Vdc 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 matter

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