Motor Module With External Air Cooling; Description; Safety Information - Siemens SINAMICS S120 Equipment Manual

Motor Modules Booksize

4.3 Motor Module with external air cooling

4.3 Motor Module with external air cooling
4.3
4.3.1

Description

A Motor Module with external air cooling is a power unit (inverter) that provides the power
supply for the connected motor(s). Power is supplied by means of the DC link of the drive
unit. A Motor Module must be connected to a Control Unit via DRIVE-CLiQ. The open-loop
and closed-loop control functions for the Motor Module are stored in the Control Unit.
Single Motor Modules and Double Motor Modules are available.
Just one motor can be connected to and operated using a Single Motor Module. Two motors
can be connected to and operated with a Double Motor Module.
External air cooling uses the "through-hole" method. This is a cooling method for SINAMICS
power units that is only available for booksize devices. The power unit and its heat sink can
be inserted in a rectangular knockout at the rear of the control cabinet and mounted with a
seal. The heat sink fins and the fan (included in the scope of supply) project beyond the rear
of the control cabinet and the heat is dissipated outside the control cabinet or in a separate
air duct.
4.3.2

Safety information

Risk of electric shock. A hazardous voltage is present for 5 minutes after the power supply
has been switched-off.
It is only permissible to open the protective cover after this time has expired.
When opening the protective cover for the DC link, you must activate the release.
A suitable tool (e.g. screwdriver) must be used for this purpose.
The components must only be operated when the protective cover of the DC link is closed.
Damaged components must not be used further, as this could result in secondary damage
or accidents.
344
DANGER
WARNING
Booksize power units
Manual, (GH2), 06/2008, 6SL3097-2AC00-0BP6