SEW-Eurodrive MOVIDRIVE MDR60A1320-503-01, Operating Instructions Manual, Page: 10 / 32

3
Electrical installation
Electrical connection
Addendum to the Operating Instructions – MOVIDRIVE
®
MDR60A1320-503-01 regenerative power supply
10
NOTICE
Make sure not to damage or tear off the cables leading to the display board
when removing the cover!
3.2.1 Power connection
Fusing:
• Consider the voltage drop in case of load when selecting the cable cross section.
• Protection of cables and regenerative power supply units on AC side (L1, L2, L3):
via commercial semiconductor fuses.
– Rated voltage of fuses must be configured according to the line voltage on site.
• Protection of the regenerative power supply on the DC voltage side at the termi-
nals + and -:
– The corresponding fuses are installed in the unit.
Connection:
• Make all connections as short and as low in inductance as possible.
• Use shielded cables to meet EMC directives (according to existing standards such
as VDE 0160 and EN 61800-5-1).
• Connect the supply cables to terminals L1, L2, and L3 of the regenerative power
supply unit. The connection must always be 3-phase.
• A certain phase sequence has to be observed for the power supply connections of
the power section (clockwise rotating field). The unit comes equipped with a phase
monitoring option. If the phase monitoring detects an incorrect phase sequence,
the unit will indicate the following fault message with its LEDs "Incorrect rotating
field" or "Phase failure" (→ chapter ""Operation and service""). In this case you
must replace 2 supply system phases of the power supply connection.
• Connect the cables for the DC link connection of the drive controller and the re-
generative power supply unit to the ter and -. Ensure correct polarity when
doing so!
• To absorb the torque, observe the specified torques and use a second wrench.
• Connect the protective earth conductor of the supply cable to one of the earthing
screws on the bottom of the unit.
NOTICE
Reversal or incorrect connection of the DC link cables from the + terminal or
the - terminal can destroy the drive controller and the regenerative power sup-
ply unit!
Wiring diagram
The following wiring diagram is a circuit recommendation. Special requirements for the
application, such as the integration of a PLC, may require changes to the connection
of contacts X2:1 to X2:12.
27789314/EN – 07/2022