40
Operating Instructions – MOVIFIT® FDC
5
Installation instructions (all versions)
Electrical Installation
5.3
Installation instructions (all versions)
5.3.1
Connecting supply system leads
• The rated voltage and frequency of MOVIFIT
®
FDC and the connected MOVIGEAR
®
and DRC drive units must correspond to the data of the supply system.
• Cable cross section: At least corresponding to the total current of the connected
MOVIGEAR
®
and DRC drive units, but maximally 10 mm
2
.
• Install line fuses at the beginning of the supply system line behind the supply bus
junction. Use D, D0, NH fuses or circuit breakers. Select the fuse size according to
the cable cross section.
• MOVIGEAR
®
FDC is suitable for operation on voltage supply systems with grounded
star point (TN and TT systems).
5.3.2
Residual current device
• SEW-EURODRIVE recommends that you do not use RCDs. However, if a residual
current device is stipulated for direct or indirect protection against contact, observe
the following note in accordance with EN 61800-5-1:
CAUTION
Electric shock due to incorrect RCD type.
Severe or fatal injuries.
– The connected MOVIGEAR
®
and DRC drive units can cause direct current in the
protective earth conductor. In cases where a residual current device is used for
protection against direct or indirect contact, only a residual current device type B
is permitted on the external power supply side of MOVIGEAR
®
and DRC drive
units.
• Do not use a conventional RCD as a protective device. Universal current-sensitive
RCDs (tripping current 300 mA) are permitted as a protective device. Earth-leakage
currents
≥
AC 3.5 mA/DC 10 mA can occur during normal operation of MOVIGEAR
®
and DRC drive units.
5.3.3
Line contactor
• Use contactor switch contacts of utilization category AC-3 according to EN 60947-4-
1 to connect the supply system cable.
Summary of Contents for MOVIFIT FDC
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