West Control Solutions KS 45 - Manual (Page 29)

6.7.3 Loop-alarm
An alarm can be activated, monitoring the control-loop for break.
A break of the heating current loop is recognized, when at output of correcting variable Y=100%
and elapsed sequence time 2 x ti1 (reset time), no appropriate reaction of the process value results.
g Loop alarm can not be used with motor-stepping- or proportional-controller and signaller.
g
During self-tuning, loop monitoring is omitted.
6.7.4 Monitoring the number of operating hours and switching cycles
Operating hours
The number of operating hours can be monitored. When reaching or exceeding the adjusted value, signal InF.1 is acti -
vated (in the error list and via an output, if configured).
The monitoring timer starts when setting limit value C.Std. Reset of signal InF.1 in the error list will start a new moni -
toring timer. Monitoring can be stopped by switching off limit value C.Std.
g
Adjusting the limit value for operating hours C.Std can be done only via BlueControl ® .
The current counter state can be displayed in the BlueControl ® expert version.
g
The number of operating hours is saved once per hour. Intermediate values are lost when switching off.
Number of switching cycles
The output number of switching cycles can be monitored. When reaching or exceeding the adjusted limit value, signal
InF.2 is activated (in the error list and via an output, if configured).
The monitoring timer starts when setting limit value C.Sch. Reset of signal InF.2 in the error list will start a new moni -
toring timer. Monitoring can be stopped by switching off limit value C.Sch.
g
A switching cycle counter is allocated to each output. Limit value C.Sch acts on all switching cycle counters.
g Adjusting the limit value for the number of switching cycles C.Sch can be done only via BlueControl ® .
The current counter state can be displayed in the BlueControl ® expert version.
g The number of switching cycles is saved once per hour. When switching off, intermediate values are lost.
Functions
KS 45 29 Limit value processing