Lenze MDxMA-MHxMA-MFxMA-MDERA-MHERA Three-phase AC motors - Manual (Page 34)

Electrical installation
Wiring according to EMC
6
l
34 BA 33.0005−EN 2.0
Possible countermeasures
Appropriate countermeasures must be taken if exceedance of the permissible voltage
peaks cannot be ruled out:
ƒ Reduce the DC−bus voltage (brake chopper threshold voltage);
ƒ Use filters, chokes;
ƒ Use of special motor cables.
6.3 Wiring according to EMC
The EMC−compliant wiring of the motors is described in detail in the Operating
Instructions for the Lenze controllers.
ƒ Use of metal EMC cable glands with shield connection.
ƒ Connect the shielding to the motor and to the device.
6.3.1 Power connections on the terminal board
Motor
Power connections on the terminal board
Single−rotation motors Pole−changing motors
U D
1 0
MT_MXXXX_001.iso/dm s
Dual−voltage motors Legend
U UU
L1/L2/L3 Power connection
TB1/TB2 Thermal contact − TCO
0
Low speed
1
High speed
UU Low voltage
U High voltage
+ PE connection (optional)