SIEMENS
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Siemens D 31 N · March 2016
SINAMICS G120 standard inverters
0.37 kW to 250 kW (0.5 hp to 400 hp)
SINAMICS G120 standard inverters
5
■
Design
Selecting the Power Module
The optimum power unit can be quickly selected based on the
required motor power, the supply voltage and the braking cycles
to be expected. Power Modules in degree of protection IP20 are
intended for installation in a control cabinet.
PM230 Power Modules – degree of protection IP20
PM230 Power Modules are designed for applications involving
pumps, fans and compressors with a square characteristic.
They do not have an integrated braking chopper (single-
quadrant applications).
PM230 Power Modules with integrated filter class A or class B,
degree of protection IP55/UL Type 12, 0.37 kW to 90 kW (0.5 to
125 hp) are integral components of the SINAMICS G120P for
pumps, fans and compressors.
More information can be found
in Catalog D 35
.
PM240-2 and PM240 Power Modules – IP20 degree of protection
PM240-2 Power Modules have an integrated braking chopper
(four-quadrant applications) and are suitable for a large number
of applications in general machinery construction. The same
applies for PM240 Power Modules, but the PM240 Power
Modules in frame size FSGX do not have an integrated braking
chopper. A plug-in Braking Module is optionally available for
this purpose.
PM250 Power Modules – degree of protection IP20
PM250 Power Modules are suitable for the same applications as
the PM240-2/PM240. Any braking energy is directly fed back
into the line supply (four-quadrant applications – a braking
resistor is not required).
The Power Modules can be combined with the following
Control Units:
Control Units
Power Modules degree of protection IP20
PM230
1)
PM240-2/PM240
PM250
CU230P-2
CU240B-2
CU240E-2
CU250S-2
–
Operator
Panel
Control
Unit
Power
Module
G_D011_XX_00356
1)
PM230 Power Modules with integrated filter class A or class B, degree of
protection IP55/UL Type 12, 0.37 kW to 90 kW (0.5 to 125 hp) are integral
components of the SINAMICS G120P for pumps, fans and compressors.
The CU230P-2 is the Control Unit for SINAMICS G120P and
SINAMICS G120P Cabinet for pumps, fans and compressors.
More information can be found in Catalog D 35
.
© Siemens AG 2016