SINAMICS G120
Inverter chassis units 0.37 kW to 132 kW (0.5 hp to 200 hp)
PM240 Power Modules
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Siemens D 11.1 · 2008
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Overview
PM240 Power Modules feature an integrated brake chopper to
which an external braking resistor can be connected via termi-
nals DCP/R1 and R2 (see DC-link components).
The PM240 Power Module can be used to couple the DC link of
up to 10 Power Modules. This functionality is useful for applica-
tions such as safe power-down after power failure or kinetic buff-
ering (the DC link is supplied in generator mode with kinetic load
energy so that the DC link voltage can be maintained).
The PM240 Power Module is also designed for safety-oriented
applications. In conjunction with a Fail-safe Control Unit, the
drive can be turned into a Safety Integrated Drive (see Control
Units).
The permissible cable lengths between inverter and motor are
limited. Longer cables can be used if output reactors are con-
nected (see load-side power components).
Line reactors are available for minimizing system perturbations
(see line-side power components).
Frame size FSA of the PM240 Power Module is available only
without integrated line filter to class A. A base filter for compli-
ance with class A is therefore available. A base filter for compli-
ance with class B is available (see line-side power components).
Frame sizes FSB and FSC of the PM240 Power Module are avail-
able both with and without integrated line filter to class A. For
compliance with class B, PM240 Power Modules with integrated
line filter to class A must be fitted additionally with a base filter to
class B (see line-side power components).
Power Modules with integrated line filter to class A are suitable
for connection to TN supply systems. Power Modules without in-
tegrated line filter can be connected to grounded (TN, TT) and
non-grounded (IT) supply systems.
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