West Control Solutions KS 50-1 - Manual (Page 15)

Name Description Cause Possible remedial action
LooP Control loop alarm
(LOOP)
Input signal defective or not
connected correctly
Output not connected correctly
Check heating or cooling circuit
Check sensor and replace it, if
necessary
Check controller and switching
device
AdA.H Self-tuning heating
alarm
(ADAH)
See Self-tuning heating error
status
see Self-tuning heating error
status
AdA.C Self-tuning heating
alarm cooling
(ADAC)
See Self-tuning cooling error
status
see Self-tuning cooling error
status
LiM.1 stored limit alarm 1
adjusted limit value 1 exceeded check process
Lim.2 stored limit alarm 2
adjusted limit value 2 exceeded check process
Lim.3 stored limit alarm 3
adjusted limit value 3 exceeded check process
Inf.1 time limit value
message
adjusted number of operating
hours reached
application-specific
Inf.2 duty cycle message
(digital ouputs)
adjusted number of duty cycles
reached
application-specific
g
Saved alarms (Err-LED is lit) can be acknowledged and deleted with the digital
input di1/2/3, the è-key or the Ò-key or the.
Configuration, see page 36:
ConF / LOGI / Err.r
g
If an alarm is still valid that means the cause of the alarm is not removed so far
(Err-LED blinks), then other saved alarms can not be acknowledged and deleted.
Not applicable to heating current alarm.
Error status:
Self-tuning heating (
ADA.H) and cooling ( ADA.C) error status:
Error status Description Behaviour
0 No error
3 Faulty control action Re-configure controller (inverse i direct)
4 No response of process
variable
The control loop is perhaps not closed: check sensor,
connections and process
5 Low reversal point Increase ( ADA.H) max. output limiting Y.Hi or
decrease ( ADA.C) min. output limiting Y.Lo
6 Danger of exceeded set-point
(parameter determined)
If necessary, increase (inverse) or reduce (direct)
set-point
7 Output step change too small
(
{
y > 5%)
Increase ( ADA.H) max. output limiting Y.Hi or
reduce ( ADA.C) min. output limiting Y.Lo
8 Set-point reserve too small Increase set-point (invers), reduce set-point (direct)
or increase set-point range
(r
PArA / SEtp / SP.LO and SP.Hi )
9 Impulse tuning failed The control loop is perhaps not closed: check sensor,
connections and process
Operation
KS50/52-1 15 Maintenance manager / Error list