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Display
Relais switches *
Cause
Reaction of Controller
Adjustment
Opera-
tion
Fault
EEP Corruption
X
X
EEP data incorrectly
controller runs with the read settings.
Sensor 1
-
X
Sensor 1
Interruption / short circuit in
the sensor leads or sensor
values measured are out-
side measuring range
The device works with minimal or
maximum modulation depending on
whether there is a short-circuit or an
interruption, and on the programmed
mode of operation.
Check sensor
Sensor2
-
X
Sensor2
Interruption / short circuit in
the sensor leads or sensor
values measured are out-
side measuring range
The device works with minimal or
maximum modulation depending on
whether there is a short-circuit or an
interruption, and on the programmed
mode of operation.
Check sensor
External error *
EC Motors
Filter
Frost protection
Adiabatik
Firealarm
Pressure switch
Gas alarm
Water alarm
RCD
-
X
Alarm from external contact
The device continues working un-
changed.
check contacts.
Messages for programmed limits
Modulation
Filter **
-
X
Limit message modulation
The device continues working un-
changed.
Limit indication depending on
modulation. .
Lmt E1 min
Filter **
-
X
Limit indication minimum
Signal actual value at
“
E1
”
below setting
The device continues working un-
changed.
Limit indication depending on set-
ting or sensor signal.
Lmt E1 max.
Filter **
-
X
Limit indication maximum
Signal actual value at
“
E1
”
above setting
The device continues working un-
changed.
Limit indication depending on set-
ting or sensor signal.
Lmt E2 min.
Filter **
-
X
Limit indication minimum
Signal actual value at
“
E2
”
above setting
The device continues working un-
changed.
Limit indication depending on set-
ting or sensor signal.
Lmt E2 max.
Filter **
-
X
Limit indication maximum
Signal actual value above
setting
The device continues working un-
changed.
Limit indication depending on set-
ting or sensor signal.
Offset 1
Filter **
-
X
Limit alarm deviation from
Offset 1 too high
The device continues working un-
changed.
Limits depending on the deviation
from the setpoint.
Operating Instructions
UNIcon MODBUS Master
Protocol
L-BAL-E255-GB 1901 Index 001
Part.-No.
114/121