Lenze EVS9332xP Bedienungsanleitung PDF herunterladen (Seite 79)

100

101

Wiring of the standard device

Notes on project planning

Operation at earth−leakage circuit breaker (e.l.c.b.)

5.2

5.2.4



5.2−3

EDSVS9332P EN 5.0−07/2013

5.2.4 Operation at earth−leakage circuit breaker (e.l.c.b.)

 Danger!

The controllers are internally fitted with a mains rectifier. In case

of a short circuit to frame a pulsating DC residual current can

prevent the AC sensitive or pulse current sensitive earth−leakage

circuit breakers from being activated, thus cancelling the

protective function for the entire equipment being operated on

this earth−leakage circuit breaker.

ƒ For the protection of persons and farm animals (DIN VDE 0100), we

recommend

– pulse current sensitive earth−leakage circuit breakers for plants

including controllers with a single−phase mains connection (L1/N).

– universal−current sensitive earth−leakage circuit breakers for plants

including controllers with a three−phase mains connection (L1/L2/L3).

ƒ Only install the earth−leakage circuit breaker between supplying mains

and drive controller.

ƒ Earth−leakage circuit breakers may trigger a false alarm due to

– capacitive compensation currents flowing in the cable shields during

operation (particularly with long, shielded motor cables),

– simultaneous connection of several inverters to the mains

– the use of additional interference filters.

5.2.5 Interaction with compensation equipment

ƒ Controllers only consume very little reactive power of the fundamental

wave from the AC supply mains. Therefore, a compensation is not

required.

ƒ If the controllers are connected to a supply system with compensation

equipment, this equipment must comprise chokes.

– For this, contact the supplier of the compensation equipment.

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