CMOD-02 multifunction extension module (external
24 V AC/DC and isolated PTC interface)
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Contents of this chapter
This chapter describes how to install and start up the optional CMOD-02
multifunction extension module. The chapter also contains diagnostics and
technical data.
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Product overview
The CMOD-02 multifunction extension module (external 24 V AC/DC and isolated
PTC interface) has a motor thermistor connection for supervising the motor
temperature and one relay output, which indicates the thermistor status. In case
the thermistor overheats, the drive trips on motor overtemperature. If Safe torque
off tripping is required, the user must wire the overtemperature indication relay
to the certified Safe torque off input of the drive.
In addition, the extension module has an external power supply interface, which
can be used to power up the drive control unit in case the drive power supply is
not on. If you do not need the back-up power supply, you do not have to connect
it because the module is powered from the drive control unit by default.
There is reinforced insulation between the motor thermistor connection, the relay
output and the drive control unit interface. Thus, you can connect a motor
thermistor to the drive through the extension module.
With CCU-24 control unit, a CMOD-02 module is not necessary for external
24 V AC/DC supply connection. The external supply is connected directly to
terminals 40 and 41 on the control unit.
454 Optional I/O extension and adapter modules
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