Alarm 1201- Home position return(OPR) data incorrect Issue

[ryzo15000]

Hello, I'm new to the forum as well as working with PLCs. My former boss is out of country and i was called in to fix a machine. 

I was recieving low battery voltage code on the Servo, After replacing the batteries on the Servo amplifier i'm now receiving an  Alarm 1201- Home position return(OPR) data incorrect  on the HMI.

I'm using GX developer to talk to the PLC but i don't have a lot of experience with it. My old boss sent me a copy of the PLC logic backup. I've overwright the PLC with his backup he created but nothing has changed.

Is it possible to manually reset the home Position or find this parameter in the logic and plot it there?

Thanks for your help in advance! Excuse my lack of knowledge.

[Gambit]

It just means the home position is lost. (because the battery died).

Most likely you will have a button on your HMI for setting a new home position.
You will have have to check which OPR method is being used in your servo settings.
If it is the DATASET method then  you have to manually jog to the home position and then set it.
If it's done in another way then it will use limit switch sensors to go to the home position automatically.

 

 

 

Edited November 20, 2017 by Gambit