Short-Circuit Monitoring Of The Thermistor Circuit - Eaton ZEV Handbuch

Motor-protective system ZEV
44
h
Hazard due to sensor failure is also excluded when the
temperature is being monitored by means of thermistors,
since this circuit switches off the unit instantaneously.
Warning!
Response of the thermistor monitoring unit must also
directly shut down a motor that is controlled by means of
an inverter. Appropriate provisions must be made in the
circuit.

Short-circuit monitoring of the thermistor circuit

A current monitor can be installed in the thermistor circuit,
in order to monitor the current high limit and short-circuit as
shown in the following circuit diagram.
05/11 MN03407008Z-DE/EN