15.2 General notes on fault messages
Acknowledging fault messages
You must acknowledge fault messages.
If the system generates a fault message, optical and acoustic
signalling of the fault is triggered. Simultaneously with the
generation of the fault message a message about the type
and time of the fault is output to the display of the operating
panel.
A0809
Fault: Check pressure sensor
No.
Time
Date
Fig. 43: Fault message on the display
The fault and the number of occurrences of the fault are signalled by the
following fault symbol
If you have cleared the fault, the optical and acoustic signalling is reset by
pressing the key
[RESET]
(F4) and the fault message on the display is
deleted.
If you have not cleared the fault, only the acoustic signalling is reset by
pressing the key
[RESET]
(F4). The optical alarm display as does the fault
message.
In parallel to the optical signalling of the alarm the fault switches the
system output
[COLLECTIVE ALARM]
. If a fault occurs, the output
[COLLECTIVE ALARM]
is activated (switches from 0 to 1).
15.3 Faults - Cause - Remedy
Fault message
Cause
Remedy
Stop prep‐
aration
Stop
Extraction
blocked
Dry feeder is not calibrated
Dry feeder not yet calibrated
Calibrate the dry feeder
YES
NO
Check dry feeder frequency
converter
Frequency converter defective Check frequency con‐
verter
YES
NO
Frequency converter parametr‐
isation is incorrect
Check frequency con‐
verter parameters
Powder feeder is empty
Feed hopper is empty
Fill the feed hopper
YES
NO
Digital input defective
Check digital input
Powder sensor defective
Check powder sensor
Dry feeder - max. capacity
reached
Dry feeder calibration is faulty
Repeat dry feeder cali‐
bration
NO
NO
Water supply too high
Reduce water supply
Concentration parameter too
high
Reduce concentration
parameter
Fig. 44: Fault
Fault Messages
74
