5
Electrical installation
Installation notes
Compact Operating Instructions – MOVIMOT
®
MM..D with AS-Interface
24
5
Electrical installation
5.1
Installation notes
Observe the following information on electrical installation:
•
Observe the general safety notes.
•
Comply with all instructions referring to the technical data and the permissible con-
ditions where the unit is operated.
•
Use suitable screw fittings for the cables (use reducing adapters if necessary).
With connector plug variants, you must use a suitable mating connector.
•
Seal open cable entries with screw plugs.
•
Use protective caps to seal plug connectors not in use.
5.2
Installation instructions
5.2.1
Connecting power supply cables
•
The nominal voltage and frequency of the MOVIMOT
®
inverter must correspond to
the data for the power supply system.
•
Install safety features F11/F12/F13 for line fuses at the beginning of the power
supply cable behind the supply bus junction, see chapter "Connection of
MOVIMOT
®
MM..AVSK".
The following safety features are permitted for F11/F12/F13:
– Fuses in utilization category gG
– Miniature circuit breakers with characteristic B or C
– Motor overload circuit breaker
Dimension the safety features according to the cable cross section.
•
SEW‑EURODRIVE recommends using insulation monitors with pulse-code mea-
surement in voltage supply systems with a non-earthed star point (IT systems).
Use of such devices prevents the insulation monitor false tripping due to the earth
capacitance of the inverter.
•
Dimesion the cable cross section according to the input current I
mains
for rated
power (see chapter "Technical data" in the operating instructions).
27792307/EN – 07/2022
