HMI communication error
Problem:
- HMI communication error (see picture)
- Not able to run the welder
Possible Causes & Resolution:
- Turn the machine off and back on and see if the error message comes up again.
- Check for the LED “on” at the PLC.
- The machine isn’t showing any reaction (for example wire manual)
- Please check the MPI-bus connection between the touch panel and the PLC.
- Also check if all the PLC modules are properly mounted to the c-rail.
- The machine was switched off for a longer period.
- The PLC has an internal battery. To be sure that it can be sufficient charged, leave the machine power on for >24 hours.
- Change the battery of the Pacemaker, see related articles