
5
Electrical Installation
Installation instructions (all versions)
34
Operating Instructions – MOVIFIT
®
-FC
5.2
Installation instructions (all versions)
5.2.1
Connecting supply system cables
• The rated voltage and frequency of the MOVIFIT
®
frequency inverter must match the
data for the supplying mains.
• Cable cross section: According to input current I
mains
for rated power (see Technical
Data)
• Install the line fuse at the beginning of the supply system cable behind the supply bus
junction. Use D, D0, NH fuses or circuit breakers. Select the fuse size according to
the line cross section.
• Use contactor switch contacts in utilization category AC-3 according to IEC 158 to
connect MOVIFIT
®
drives.
• Switch the MOVIFIT
®
-FC output with inhibited output stage only.
5.2.2
Earth-leakage circuit breakers
• Do not use a conventional earth-leakage circuit breaker as a protective device.
Universal current-sensitive earth-leakage circuit breakers (trip current 300 mA) are
permitted for use as protective devices. During normal operation of MOVIFIT
®
, earth-
leakage currents of > 3.5 mA can occur.
• SEW-EURODRIVE recommends that you do not use earth-leakage circuit breakers.
However, if an earth-leakage circuit breaker (FI) is specified as a direct or indirect
touch guard, observe the following note in accordance with EN 61800-5-1:
5.2.3
Mains contactor
• Only use a contactor of utilization category AC3 (EN 60947-4-1) as a mains
contactor.
WARNING
Wrong type of earth-leakage circuit breaker installed
Severe or fatal injuries
• MOVIFIT
®
can cause direct current in the protective earth. In cases where an earth-
leakage circuit breaker (FI) is used for protection against direct or indirect contact,
only an earth-leakage circuit breaker (FI) of type B on the external power supply
side of the MOVIFIT
®
is permitted.
Содержание MOVIFIT-FC
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