Temperature Monitoring - Siemens SIPLUS HCS Operating Instructions Manual

Functions
9.6 Monitoring functions
9.6.5

Temperature monitoring

Internal temperature monitoring
A sensor is installed on the heat sink inside the heating controller (POM) to measure the
internal temperature.
An alarm threshold is defined for the internal temperature. The following reactions are
triggered when the threshold is overshot:
● Signal to the higher-level controller.
● The channels are deactivated - regardless of which channel response was configured for
the error (see section Behavior of the power outputs (Page 79)).
Note
If an internal temperature of 0 °C is reported, this indicates that a temperature sensor has
been torn off.
Cooling via fan
To achieve even heat distribution, a fan can be optionally mounted externally on the rack.
The fan is controlled depending on the internal temperature. For the performance profile of
the Power Output Module (POM) with and without a fan, refer to Section Performance profile
of the POM4220 (Page 32).
If if should prove necessary to operate the fans continuously, this can be done by the user.
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Operating Instructions, 11/2015, A5E35066204A/RS-AA/002
SIPLUS HCS4200