12 Appendix
74
12.2 Alarm messages
Overrange / underrange covers the following events:
- Probe break or short-circuit
- Measurement is outside the controllable range for the probe that is connected
- Display overflow
Display Cause Fault removal
test/repair/replace
-1999
(blinking!)
Underrange for the value being
displayed.
- Check that the connected probe com-
plies with the configured sensor type and
linearization
- Check the probe connection and the ter-
minals
- Check the cable
- Check probe for short-circuit and probe
break
- In case of standard signal:
Is the signal within the permissible range
(e.g. 4 - 20mA)?
9999
(blinking!)
Overrange for the value being
displayed.
9999
(lower display)
Error in output feedback of
modulating controller
Check the source signal for output feedback
----
(blinking!)
Source signal for controller
process value is switched off
Select a source signal in configuration level
all displays on;
lower
7-segment
display is
blinking
Watchdog or power-on trigger
initialization (reset).
Replace the controller if the initialization
continues for more than 5sec
PrOF
PROFIBUS error Can be suppressed by setting the
PROFIBUS address to “0” (if PROFIBUS
interface is not used).
OPt
Hardware configuration error Check which option boards are installed in
the slots
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