After mounting, wiring and setting check whether the unit operates
correctly.
In case of faults / anomalies: Connect the EPS service system and open
the parameter
Fnr
. The following faults are indicated:
23
ENGLISH
Installation and set-up / operation
Fnr
Type of fault
Corrective measures
0
No fault, no anomaly occurred.
-/-
10
Fault during Power-on self test.
Switch off/on power supply or
replace the unit.
20
Internal malfunction in the sensor
electronics.
Replace the unit.
21
Partial malfunction in the sensor
electronics, measurement with one
channel still possible.
Replace the unit.
(Sensor backup is possible).
1)
30
Short circuit in switching output
Out1 (diagnostic output).
Check wiring and load on Out1,
temperature measurement without
diagnosis still possible.
40
Malfunction on the analogue
output.
Replace the unit; measured
temperature value available via EPS.
41
Load for analogue output
of too high impedance.
Check wiring and load on Out2,
measured temperature value is
available via EPS.
42
Analogue signal goes to the value
3.8 mA; no linear transmission of
the measured value possible any
more. Measured temperature is
below ASP value.
Set ASP value (AEP value if OU2 =
Ineg) lower if possible
or increase medium temperature.
43
Analogue signal goes to the value
20.5 mA; no linear transmission of
the measured value possible any
more. Measured temperature has
exceeded AEP value.
Set AEP value (ASP value if OU2 =
Ineg) higher if possible
or reduce medium temperature.
51
Interruption measuring element 1
(NTC).
Replace the unit.
(Sensor backup is possible).
1)
1)
Setting of parameter
drEd
: "
On
" or "
Ondr
".
