Protection and Features:

 • Electronic thermal motor protection against overload.

 • Temperature monitoring of the heatsink ensures that the frequency converter trips in case of

overtemperature

 • The frequency converter is protected against short-circuits between motor terminals U, V, W.

 • If a motor phase is missing, the frequency trips and issues an alarm.

 • If a mains phase is missing, the frequency converter trips or issues a warning (depending on the load).

 • Monitoring of the intermediate circuit voltage ensures that the frequency converter

 trips if the intermediate circuit voltage is too low or too high.

 • The frequency converter is protected against earth faults on motor terminals U, V, W

 The cooling capability of air is decreased at low air pressure.

 For altitudes above 2000 m, please contact GE .

 Below 1000 m altitude no de-rating is necessary but above 1000 m the ambient 

 temperature or the maximum output current should be decreased.

 Decrease the output by 1% per 100 m altitude above 1000 m or reduce the max.

 ambient temperature by 1 degree per 200 m