Important notes
Operation with e.l.c.bs (earth-leakage circuit-breakers)
6
Basic unit wiring
6.2
6.2.5
L
6.2-4
EDS82EV903-1.0-11/2002
6.2.5 Operation with e.l.c.bs (earth-leakage circuit-breakers)
{ Danger!
The controllers have an internal mains rectifier. In the event of a
short-circuit to frame, a DC fault current can prevent the
activation of the AC-sensitive or pulse-current sensitive e.l.c.b.
and thus block the protective function for all electrical equipment
operated on this e.l.c.b..
l We recommend the following to protect persons and animals (DIN VDE
0100): 3
– Pulse-current sensitive e.l.c.bs in machines where controllers are
connected to a single-phase mains (L1/N).
– All-current sensitive e.l.c.bs in machines where controllers are connected
to a three-phase mains (L1/L2/L3).
l E.l.c.bs must only be installed between mains supply and controller.
l E.l.c.bs can be activated although not wanted by
– capacitive leakage currents of the cable shields during operation
(especially with long, shielded motor cables),
– the simultaneous connection of several controllers to the mains supply,
– Use of additional RFI filters
l The specifications for e.l.c.bs given in the chapter ”Technical data” apply to
low-capacity and shielded motor cables (guide value):
– E82EVxxxKxB without additional measures
– E82EVxxxKxB200 with SD RFI filter
6.2.6 Interactions with compensation equipment
l Controllers only consume a very small fundamental reactive power from the
AC mains. A compensation is therefore not necessary.
l If you operate the controllers on a mains with compensation equipment, the
compensation equipment must be equipped with chokes.
– Please consult the supplier of compensation equipment.
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