Parallel Connection Of Motor Modules Chassis-2 - Siemens SINAMICS S120 Manual
Air-cooled chassis power units
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Also See for SINAMICS S120:
- Function manual (1094 pages) ,
- Diagnostic manual (947 pages) ,
- Manual (848 pages)
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Motor Modules
6.2 Motor Modules Chassis-2
6.2.8.4
Parallel connection of Motor Modules Chassis-2
The following rules must be observed when connecting Motor Modules Chassis-2 in parallel:
• Up to 6 identical Motor Modules Chassis-2 can be connected in parallel.
• Parallel connection can only be implemented using one common Control Unit.
For more than 4 power units, these must be distributed as symmetrically as possible
between at least two DRIVE-CLiQ ports (e.g. 3x 2 Motor Modules Chassis-2 in series, or a
minimum of 2x 3 Motor Modules Chassis-2 in series).
• The motor supply cables must have the same length (symmetrical design).
• The Motor Modules Chassis-2 must be supplied from a shared DC link.
• For motors with a single winding system, supply cables with a minimum length or motor
reactors must be used. The cable lengths are listed in the following tables.
• For motors with multi-winding systems, carefully observe the notes provided in the Low
Voltage Configuration Manual.
• A derating factor of 5% must be taken into consideration, regardless of the number of
Motor Modules Chassis-2 connected in parallel.
Note
Mixed operation is not possible
It is only possible to connect power units in parallel if all of them have the same hardware
version. It is not permissible to operate a Motor Module (Article number 6SL3320-xxxxx–
xAAx) together with a Motor Module Chassis-2 (Article number 6SL3321-xxxxx–xAA0).
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Air-cooled chassis power units
Equipment Manual, 06/2020, 6SL3097-5AE00-0BP3
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