External thermal relay operation

What does E.OHT mean?

The inverter output is stopped if an external thermal relay (used for motor overheat protection) or an internally mounted motor temperature relay switches on (contacts open). If the relay contacts reset automatically, the inverter requires a manual reset before it can restart. This protection is only active when '7 (OH signal)' is set in Pr. 180 to Pr. 186.

Additional Steps

Steps 1–2 are listed in Priority Fix.

1. 3

   Reduce the mechanical load on the motor and/or decrease the operating duty cycle.