Endress+Hauser FMR 231 - Trouble-Shooting; 7.1 Self-monitoring; On an alarm; On a warning

7 Trouble-Shooting
When the instructions in the manual have been followed correctly, the system must now
function. Should this not be the case, the Micropilot provides a number of possibilities
for analysing and correcting faults.
7.1 Self-monitoring
The self-monitoring system differentiates between alarms and warnings.
On an alarm
•
The fault indicator appears at the
operating and display module VU 330.
•
The analogue output responds
according to the settings in V0H7,
V8H3 and V8H5, see table below.
•
The bargraph follows the analogue
output.
An error code is displayed at matrix
position V9H0 to help locate the fault. V9H1
indicates the previous error code.
On a warning
•
The fault indicator appears at the
operating and display module VU 330.
•
The Micropilot continues to measure.
An error code is displayed at matrix
position V9H0 to help locate the fault. V9H1
indicates the previous error code.
Analogue output
The analogue output responds according to the setting in V0H7. If the Micropilot has
been configured with the device keys (no VU 330, DXR 275 or Commuwin II), then the
analogue output goes to MAX (= 22 mA) on a fault.
V H
V+ H
BA171Y33
fault indicator
V H
V+ H
BA171Y46
Fault indicator
Analogue output at V0H7 = 0 (MIN) V0H7 = 1 (MAX) V0H7 = 2 (HALTEN)
Current
3.8 mA 22 mA last current held
Micropilot FMR 231 Chapter 7 Trouble-Shooting
Endress+Hauser 35