Motor Modules With Internal Air Cooling; Description; Safety Information - Siemens SINAMICS S120 Equipment Manual

4.2

Motor Modules with Internal Air Cooling

4.2
4.2.1

Description

A motor module 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.
One motor can be connected to single motor modules and two motors can be connected to
double motor modules.
4.2.2

Safety information

Danger
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.
Warning
When opening the protective cover for the DC link, you must press the release catch.
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, otherwise this could result in secondary damage
or accidents.
Caution
Motor Modules with a rated current as of 18 A and all Double Motor Modules conduct a high
leakage current via the PE conductor. Because of the high leakage current of the Motor
Module, a permanent PE connection of the Motor Module or control cabinet is required.
Measures according to EN 61800-5-1 must be taken (e.g. PE conductor (≥10mm
an additional connection terminal for a PE conductor with the same cross-section as the
original PE conductor).
Equipment Manual for Booksize Power Units
Equipment Manual, (GH2), 03/2006 Edition, 6SL3097-2AC00-0BP3
Motor Modules Booksize
4.2 Motor Modules with Internal Air Cooling
Cu) or fit
2
4-3