Operating Instructions – MOVIDRIVE® MDR60A/61B
107
12
Electrical connection
Installation (MDR60A1320-503-00)
12.3 Electrical connection
You will have access to the MOVIDRIVE
®
MDR60A1320-503-00 wiring space after re-
moval of the lateral knurled screw and housing cover. The incoming cables are guided
through the metal cable glands installed in the flange.
12.3.1 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):
– Commercial semiconductor fuses
– Fuses and fuse holders/disconnector switches in UL-compliant systems must
have UL approval.
– Rated voltage of fuses must be configured according to the supply voltage on site.
• Protection of regenerative power supply units on the DC side (+UG, –UG):
– Fuses are installed in 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 sup-
ply unit. Connection always has to be three phase.
• A certain phase sequence has to be observed for the power supply connections of
the power section (clockwise phase sequence). The unit comes equipped with a
phase monitoring option. If the phase monitoring detects an incorrect phase se-
quence, the unit will indicate the following error message with its LEDs "Incorrect ro-
tating field" or "Phase fault" (
→
chapter "Operation and Service" (page 121)). 2 sup-
ply system phases of the power supply connection will have to be replaced.
• Connect the cables for the DC link of drive controller and regenerative power supply
unit to terUG / -UG. Ensure correct polarity when making the connection!
• Observe the specified torques and use a 2. wrench to absorb the torque.
• Connect the equipment grounding conductor of the supply cable to the earthing
screw at the bottom of the unit.
NOTICE
Make sure not to damage or tear off the cables leading to the display board when
removing the cover!
NOTICE
Reversal or incorrect connection of + (plus) or – (minus) poles can destroy the
drive controller and the regenerative power supply unit!
Содержание MDR60A
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