Alarm Messages - JUMO eTRON M Notice De Mise En Service

7

Alarm messages

The following alarm messages may appear in the temperature display:
Error message
ProcVal
ProcVal
ProcVal
ProcVal
Cause
Display overrun
The measured value is too large and
outside the range.
Display underrun
The measured value is too small and
outside the range.
Service interval elapsed
The time that was set for the
maintenance of a heating or cooling
unit has elapsed.
Time for switch-on delay after power-
on has elapsed.
With display over/underrun, the
switch-on delay becomes ineffective.
Value has fallen below the low alarm
limit
Value has gone above the high alarm
limit
Elimination
- Check sensor and connecting cable for
damage or short-circuit
- Check whether the correct sensor has been
set or connected
v
H
Chapter 4 "Commissioning the instrument"
These messages are only output to the
process value display.
h
Carry out service
h
At the parameter level, reset
manually to 0
v
Chapter 4 "Commissioning the instrument"
h
Cancel switch-on delay
with +
h
Depending on the controller type, check
whether the heating or cooling unit is still
functioning faultlessly.
h
Check whether any relay fuse that may have
been installed is still in good working order.
The alarm disappears as soon as PV goes above or be-
low the AL limits by the amount of the hysteresis.
26