User Manual

12 Appendix
66
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.
Is the medium being measured within the
range (too hot? too cold?)
Check probe for short-circuit and probe
break
Check the probe connection and the
terminals.
Check the cable.
9999
(blinking!)
Overrange for the value being
displayed.
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”.
OPt
Hardware configuration error Check which option boards are installed in
the slots.