Heatsink temperature > C0122

What does it mean?

The heatsink temperature exceeds the value set in C0122.

Common causes

• Dirty heatsink, wrong mounting position, or the value set under C0122 is too low.

How to fix it

• Clean the heatsink, change the mounting position and enter a higher value under C0122.

After troubleshooting: de-energise the device completely (disconnect the 24 V supply and discharge the DC bus) before opening the covers.