Electrical Installation; Important Notes; Earth-Leakage Circuit Breaker; Electrostatic Hazard - Lenze 712 E.3B Betriebsanleitung

5

Electrical installation

5.1

Important notes

5.1.1

Earth-leakage circuit breaker


Danger!
Dangerous electrical voltage
Drive controllers in this series have an internal mains rectifier. For
this reason, after a short circuit to frame a DC leakage current can
block the leakage current tripping. To prevent this situation, take
the following measures:
Connect the system to neutral or use an earth-leakage circuit breaker of
ƒ
universal-current sensitivity.
Capacitive compensation currents occurring in the cable shield and interference
filter under normal operating conditions can cause the earth-leakage circuit
breaker to trigger incorrectly.
Set the trigger current on the earth-leakage circuit breaker sufficiently
ƒ
high that incorrect triggering is not possible.

Note!
Earth-leakage circuit breakers of universal-current sensitivity are
described in the standards
DIN EN 61800-5-1 and IEC 755.
5.1.2

Electrostatic hazard


Stop!
Electrostatic hazard
Drive controllers in this series contain electrostatic sensitive devices.
Prior to working on the drive controller, service personnel must
discharge themselves.
Touch the PE fixing screw or any other earthed metal surface.
ƒ
EDB712 DE/EN 2.1
Electrical installation
Earth-leakage circuit breaker

Important notes
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