SIEMENS
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Siemens CR 1 · 2015
6
Drive systems
SINAMICS S120 Cabinet Modules
Switch-Over Modules
■
Overview
Switch-Over Modules switch Motor Modules and motors to-
gether in accordance with their type. This results in an increase
in plant availability due to redundancy and optimum utilization of
the available plant components. The Switch-Over Modules can
be optionally equipped with analog measuring instruments inte-
grated into the cabinet door for indication of the output voltage
of the Motor Modules and for indicating the motor currents.
■
Design
A total of 4 circuit versions are available.
Version A
•
A Motor Module operates either Motor 1 or Motor 2
Function diagram for version A
Implementation of version A with option
B80
:
2 ammeters (analog measuring instrument of moving-coil type,
240° scale) for indicating the motor currents and a voltmeter
(analog measuring instrument of moving-coil type, 240° scale)
for indicating the output voltage of the Motor Module.
Version B
•
Motor Module 1 operates Motor 1 and Motor Module 2 opera-
tes Motor 2 or
•
Motor Module 1 operates Motor 2 and Motor Module 2 opera-
tes Motor 1
Function diagram for version B
Implementation of version B with option
B80
:
2 ammeters (analog measuring instrument of moving-coil type,
240° scale) for indicating the motor currents and 2 voltmeters
(analog measuring instrument of moving-coil type, 240° scale)
for indicating the output voltage at the Motor Modules.
Version A
G_CR01_EN_00220
Motor
Module
1
Motor
1
Motor
2
Version B
G_CR01_EN_00221
Motor
Module
1
Motor
Module
2
Motor
1
Motor
2
© Siemens AG 2015