GMC-I Messtechnik GmbH
R2500–41
Heating Circuit Monitoring
– Function
– Can be set to active or inactive with the
LbA
configuration
– Without external transformer, without additional parameters
– Assumes correct optimization of
tu
and
Pb I
control parameters!
Due to the fact that self-tuning generates other results in certain cases when heating circuit monitoring is activated,
heating circuit monitoring must be activated
before
self-tuning is started.
– In the event of manual optimization or subsequent adaptation of control parameters, the lower limit for the
tu
parameter
must be observed:
2·
Pb I
Minimum
tu =
t
t = maximum temperature rise during start-up
– Error message
LE
appears after approximately 2 times
tu
, if heat remains on at 100% and measured temperature rise is
too small.
– Monitoring is not active:
Where controller type = limit transducer, actuator or step-action controller
During self-tuning
With standard signal input (designation B2)
Where manipulating factor limiting
Y H
< 20%
Summary of Contents for R2500
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