Connecting
3.2 Safety information for wiring
SIMOTION D4x5-2
Commissioning and Hardware Installation Manual, 02/2012
43
3.2 Safety information for wiring
Requirement
You have mounted the Control Unit in the control cabinet.
The SIMOTION D4x5-2 Control Unit has a connection for the protective conductor and a
connection for the equipotential bonding conductor (M5 screw, Torx T25). Only one
connection is available for the CX32-2 - this must be used both for the protective conductor
and the equipotential bonding conductor.
Note
Requirements for functional safety for machines and systems; reliability and EMC are only
guaranteed with original SIEMENS cables.
Note the following safety information:
DANGER
De-energize the system/machine before you wire the Control Unit.
Protective conductor connection
SIMOTION D and the SINAMICS S120 drive system are designed for use in cabinets with a
protective conductor connection.
All system components and machine parts must be incorporated in the protection concept.
The drive line-up must be arranged on a common bright mounting plate
① in order to
comply with the EMC limit values. The connection
② establishes a low-impedance
connection to the mounting plate.
The mounting plate must be connected to the protective conductor connection of the control
cabinet. For this purpose, a connection
③ must be established to the protective conductor
bar
④. The protective conductor bar ④ must be connected to the protective conductor ⑤.
The protective connection (PE connection) that is used for the motors
⑥ must be
established through the motor cable.
For EMC reasons, the motor cable shield must be laid flat at both the Motor Module (MM) /
Power Module (PM) and motor.
A protective connection
⑧ must also be established for components that are not connected
with low impedance (e.g. control cabinet door via hinges
⑦).
Example: Booksize axis grouping comprising Control Unit (CU), line module (LM) and motor
modules (MM) as well as drive in blocksize format comprising a power module (PM) with
snapped on Control Unit (CU)
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