Monitoring The Lower Limit Temperature "H._Tmin - Siemens 6DR50 Series Operating Instructions Manual

Parameterizing/addressing
9.4 Description of parameters
9.4.3.8

Monitoring the lower limit temperature "H._TMIN"

H. TMIN - Monitoring the lower limit temperature
Use this parameter to activate continuous monitoring of the lower limit temperature inside the
enclosure. The current temperature in the enclosure is recorded by a sensor on the basic
electronics. The limit temperature is monitored in three stages.
Configure the following settings to activate the function:
1. Set the "H. TMIN" parameter to "On". Sub-parameters are displayed. Monitoring is
activated.
2. Set the suitable parameter values in sub-parameters. The setting options available in
sub-parameters are described below.
The positioner triggers a fault message if the current value exceeds a threshold.
The factory setting is "OFF".
H1.TUNIT - temperature unit
Use this sub-parameter to set the temperature unit "°C" or "°F". The selected temperature
unit is then also applicable for all other temperature-based parameters.
The factory setting is "°C".
H2.LEVL1 - threshold 1
Use this sub-parameter to set a threshold in "°C" or "°F". Use threshold 1 to monitor the
lower limit temperature. Set the threshold in a range from "-40.0C" to "90.0C" or "-40.0F" to
"194.0F".
The positioner triggers a fault message if the current temperature inside the enclosure
undershoots threshold 1. The procedure to activate and display this error message is
described in the "XDIAG" parameter.
The factory setting is "-25.0C".
H3.LEVL2 - threshold 2
Use this sub-parameter to set a threshold in "°C" or "°F". Use threshold 2 to monitor the
lower limit temperature. Set the threshold in a range from "-40.0C" to "90.0C" or "-40.0F" to
"194.0F".
The positioner triggers a fault message if the current temperature inside the enclosure
undershoots threshold 2. The procedure to activate and display this error message is
described in the "XDIAG" parameter.
The factory setting is "-30.0C".
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SIPART PS2 with and without HART
Operating Instructions, 09/2014, A5E00074631-12