Safety Information - Siemens SINAMICS S120 Equipment Manual

Motor Modules

5.2 Safety information

Characteristics of the Motor Modules
• Version for 510 V DC to 720 V DC from 310 A to 490 A
• Liquid 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
• Integration in system diagnostics
• An external 24 V DC supply is required to operate liquid-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.
5.2 Safety information
Warning
After disconnecting all the supply voltages, a hazardous voltage will be present in all
components for another 5 minutes. Work cannot be carried out until this time has elapsed.
Before starting work, you should also measure the voltage after the 5 minutes have elapsed!
The voltage can be measured on DC link terminals DCP and DCN.
Caution
The DC link discharge time hazard warning must be affixed to the component in the local
language.
Notice
The clearances above, below, and in front of the component, which are specified in the
dimension drawings, must be observed.
Warning
Cable shields and unused power cable conductors must be connected to PE potential to
prevent capacitive cross-talk charges.
Non-observance can cause lethal shock voltages.
Caution
The busbars and coolant connections which stick out of the module must never be used as
handles or support surfaces when the units are transported.
5-2
Version for 675 V DC to 1080 V DC from 575 A to 1270 A
in the drive line-up.
SINAMICS S120 Equipment Manual, Edition 04/2007, 6SL3097-2AM00-0BP2
Chassis Power Units Liquid Cooled