Endress+Hauser Proline Promag 50 - Page 95

PROline Promag 50 9Trouble-shooting
Endress+Hauser 95
Frequency output FALLBACK VALUE
Signal output
→ 0 Hz
FAILSAFE LEVEL
Output of the frequency specified in the
FALÌLSAFE VALUE function.
HOLD VALUE
Last valid value (preceding occurrence of the
fault) is output.
ACTUAL VALUE
Fault is ignored, i.e. normal measured-value
output on the basis of ongoing flow measure-
ment.
Output signal corresponds to
“zero flow”
Total izer STOP
The totalizers are paused until the error is
rectified.
ACTUAL VALUE
The fault is ignored. The totalizers continue to
count in accordance with the current flow
value.
HOLD VALUE
The totalizers continue to count the flow in
accordance with the last valid flow value
(before the error occurred).
Totalizer stops
Status output In the event of a fault or power supply failure:
Status output
→ non-conductive
No effect on status output
Failsafe mode of outputs and totalizers
Process/system error is current Positive zero return is activated