4. Tips for fault localization
can fuse T4A
If a malfunction occurs, a notification is given on the display
of the controller:
Operating control lamp
Warning symbol
Operating control lamp offOperating control lamp flashes red. On the display the
symbols and appear.
°F Ω °F Ω
14 961 131 1213
23 980 140 1232
32 1000 149 1252
41 1019 158 1271
50 1039 167 1290
59 1058 176 1309
68 1078 185 1328
77 1097 194 1347
86 1117 203 1366
95 1136 212 1385
104 1155 221 1404
113 1175 230 1423
122 1194 239 1442
Resistance values of the
Pt1000-sensors
Check the power supply
o.k.
The can fuse of the controller is defective.
It can be replaced after removal of the
front cover (spare fuse is enclosed in the
accessory bag).
Sensor defect. An error code is shown
on the relevant sensor indication channel
instead of a temperature.
- 88.8888.8
Line break. Check
the line.
Short-circuit.
Check the line.
Pt1000-temperature sensors pinched
off can be checked with an ohmmeter.
In the following the resistance values
corresponding to different temperatures
are listed.
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