Electrolux 520003, Инструкция по эксплуатации

Страница: 14 / 47

7
C2 Features of Power Supply
The AC power supply at the machine must meet
the following conditions:
•
Max. Fluctuation of voltage: ±10%
•
Max. Fluctuation of frequency: ±1%, with
short-time endurance of ±2%.
The harmonic distortion, unbalanced 3 - phase
supply voltage, voltage impulse, power failure,
sudden drop and other electrical characteristics
must comply with the standard EN60204-1
(IEC60204-1), sub clause 4.3.2.
Important Information!
The machine power supply must be
protected with fuse or proper
magnetic thermal breakers to prevent
overcurrent (short circuit and
overloading).
These must be installed in the
full-grade switching-off system, with
a contact gap of 3 mm at least.
Important Information!
In order to prevent indirect contact
(depending on mains type and
grounding of equipotential protection
circuit), please refer to EN
60204-1(IEC60204-1), sub clause 6.3.3.
Use protective devices to ensure that
the TN or TT system may
automatically switch off the power
supply under condition with fault
isolated, or the IT system uses
isolation controller or differential
current protection to activate
automatic power failure (one
isolation controller must be provided
to indicated possible first grounding
fault of a component, unless
otherwise that one protective device
is provided to disconnect the power
supply if this is the case.) This
equipment must activate audible
and/or visual signal. Such signal
must be kept available during fault
occurrence.
Important Information!
The customers should follow these
instructions. Otherwise, the
manufacturer will not ensure that the
machine may continuous operate
and/or has no fault.