Endress+Hauser Liquisys M CLM223/253, Operating Instructions Manual

Page: 74 / 112

Diagnostics and troubleshooting Liquisys M CLM223/253
74 Hauser
E150
Distance between temp.
values in
 value table too
small or not
monotonously increasing
Enter correct values in  value table
(minimum distance between
temperature values of 1 K required) Yes No No 44 80
E151 USP/EP error Yes No No 44 80
E152 PCS alarm Check sensor and connection. Yes No No 44 44
E153 USP/EP temperature error Yes No No 80 44
E154
Below lower alarm
threshold for period
exceeding alarm delay
Perform manual comparison
measurement if necessary. Service
sensor and recalibrate.
Yes No No -
3)
-
E155
Above upper alarm
threshold for period
exceeding alarm delay
Yes No No - -
E156
Actual value undershoots
alarm threshold (CC
setpoint) for longer than
the set permissible
maximum period Yes No No - -
E157
Actual value exceeds
alarm threshold (CC
setpoint) for longer than
the set permissible
maximum period
Yes No No - -
E162 Dosage stop
Check settings in the CURRENT INPUT
and CHECK function groups.
Yes No No - -
E171
Flow in main stream too
low or zero
Restore flow. Yes No No - -
E172
Switch-off limit for
current input exceeded
Check process variables at sending
measuring instrument. Change range
assignment if necessary. Yes No No - -
E173 Current input < 4 mA
Check process variables at sending
measuring instrument.
Yes No No - -
E174 Current input > 20 mA
Check process variables at sending
measuring instrument. Change range
assignment if necessary.
Yes No No - -
1) PV = Process variable
2) If this error occurs, there is no possibility of starting a cleaning session (field F8 not applicable with this error).
3) Current error messages not applicable via PROFIBUS
Error
no. Display Tests and/or remedial measures Alarm contact Error current Autom.
cleaning start PROFIBUS
status
Facty User Facty User Facty User PV 1) Temp