SIEMENS
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Siemens CR 1 · 2015
6
Drive systems
SINAMICS S120 built-in devices
Air-cooled Power Modules in blocksize format
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Design
PM340 Power Modules in blocksize format, frame sizes FSA to FSF
The PM340 Power Modules in blocksize format feature the
following connections and interfaces as standard:
•
Line connection
•
PM-IF interface for connection of the PM340 Power Module
and CU310-2/SIMOTION D410-2 Control Unit or CUA31/
CUA32 Control Unit Adapter. The PM340 Power Module also
supplies power to the CU310-2/SIMOTION D410-2 Control
Unit or CUA31/CUA32 Control Unit Adapter by means of an
integrated power supply
•
Terminals DCP/R1 and R2 for connection of an external
braking resistor
•
Motor connection made with screw-type terminals or screw
studs
•
Control circuit for the Safe Brake Relay for controlling a
holding brake
•
2 PE (protective earth) connections
Power Modules without integrated line filter can be connected to
grounded TN/TT and non-grounded IT systems. Power Modules
with integrated line filter are suitable only for connection to TN
systems with grounded star point.
The integrated Braking Unit (Braking Chopper) is rated with the
capability to continuously utilize the external braking resistor.
The temperature of the external braking resistor must be monito-
red to provide protection against thermal overloading.
© Siemens AG 2015