Siemens SINAMICS S120 Equipment Manual page 136

Motor Modules
6.1 Description
Characteristics of the Motor Modules
● Version for 510 ... 720 V DC (line voltage 380 ... 480 V 3 AC) from 110 to 1405 A
Version for 675 ... 1035 V DC (line voltage 500 ... 690 V 3 AC) from 90 to 1560 A
● Water cooling
● Short-circuit/ground-fault-proof
● Electronic rating plate
● Operating status and error status via LEDs
● DRIVE-CLiQ interface for communication with the Control Unit and/or other components
in the drive line-up.
● Integration in system diagnostics
● An external 24 V DC power supply is required to operate water-cooled Motor Modules.
The volumetric flow of the coolant is monitored by the software. If the volumetric flow is
continuously lower than the setpoint, an alarm (A5005) is first displayed. If this alarm
remains active continually for the next 5 minutes, a fault message (F30047) is activated
which shuts down the unit.
The fans for the internal electronic circuitry are only switched on when required.
The fans are switched on and off as a function of several factors (e.g. heat sink temperature,
ambient temperature, output current, duty cycle, ...) which means that fan operating cycles
cannot be calculated directly.
136
Water-cooled chassis power units for common cooling circuits
Manual, 08/2017, 6SL3097-4AM10-0BP0