WEST 8800 - Page 15

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.
Configuration, see page 37: 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.
Self-tuning heating ( ADA.H) and cooling ( ADA.C) error status:
DAC function ( DAC) error status:
Operation
8800 process controller 15 Error list / Mainenance manager
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
Acknowledgment of this error message leads to switch-over to
automatic mode.If self-tuning shall be continued,
increase set-point (invers), reduce set-point (direct)
or decrease 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
Error
status
Description Behaviour
0
No error
3
Output is blocked Check the drive for blockage
4
Wrong method of operation Wrong phasing, defect motor capacitor
5
Fail at Yp measurement Check the connection to the Yp input
6
Calibration error Manual calibration necessary