Parallel Switching Of Motor Modules - Siemens SINAMICS S120 Equipment Manual

Motor Modules
5.6 Technical specifications
5.6.3

Parallel switching of Motor Modules

The following rules must be followed for parallel switching of Motor Modules:
• Up to four identical Motor Modules can be switched parallel.
• Parallel switching can only be implemented with a common Control Unit.
• The length of the motor supply lines must be the same (symmetric structure).
• The motor modules must be supplied by a common intermediate circuit.
• For motors with a development system supply line with a minimum line length must be
• A derating factor of 5 % must be taken into account, regardless of the number of Motor
Minimum line lengths for parallel switching and connection to a motor with development system
Attention
The minimum motor line lengths shown in the tables below must be complied with for parallel
switching of two or more Motor Modules, and connection to a motor with a development
system. If the required line length cannot be achieved in the application then a motor reactor
must be provided.
Table 5-12
6SL3320-1TE33-1AA0
6SL3320-1TE35-0AA0
Table 5-13
6SL3320-1TG35-8AA0
6SL3320-1TG38-1AA0
6SL3320-1TG41-0AA0
6SL3320-1TG41-3AA0
5-20
used, the respective line lengths are shown in the tables below.
Modules switched in parallel.
Motor Modules, 510 V - 720 V DC
Order number
Motor Modules, 675 V - 1035 V DC
Order number
Power [kW] Output current [A]
160
250
Power [kW] Output current [A]
560
800
1000 1025
1200 1270
SINAMICS S120 Equipment Manual, Edition 04/2007, 6SL3097-2AM00-0BP2
Minimum line length [m]
310
490
Minimum line length [m]
575
810
Chassis Power Units Liquid Cooled
20
15
20
15
10
8