3004355-2012-07-23.fm
GB - BESB – Product information
10/56
BESB500-4-3FC
Diagram
Leakage current
The FC- motor’s frequency converter produces a leakage current when running. The
leakage current must be earthed, as there is a risk of the motor becoming live.
A leakage current of up to 150 mA can be generated.
To comply with EN50178 the unit must be suitably earthed.
Earth leak circuit
breakers
Only type-B circuit breakers must be used with model BESB500-4-3FC in compliance
with IEC755 Amend. 2, for faulty current with DC component (pulsating DC) and for
smooth vagrant current.
These circuit breakers are marked with:
Fault finding
See the instruction manual for the frequency converter (in the electronic housing).
When the error has been remedied, the LED indicator of the frequency converter can be
reset by temporarily cutting the power until the LED goes out.
Fig. 10
