12.2
Messages and trouble shooting
A momentary pending alarm or error message is indicated by a blinking display and appears
alternately with the actual value display.
Display
Relais switches *
Cause
Reaction of Controller
Adjustment
Opera-
tion
Failure
no display
-
-
No line voltage
Jumper J1 for USB interface
plugged
Line voltage available?
Unit switch OFF and automatically
ON when the voltage has been re-
stored
Check line fuse
Check jumper J1, pull off or only plug
to one PIN
OFF
X
-
No enable
Switch OFF by external contact
(function
|
1D
|
= enable programmed
for Digital In)
Factory setting
-
-
fault in Eprom
Works with defaults.
EEP error
-
X
fault EEP damaged
Works with defaults.
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
Device continues working unchanged.
check contacts.
Messages for programmed limits
Modulation
Filter **
-
X
Limit alarm modulation
Device continues working unchanged.
Limit indication depending on
modulation. .
Operating Instructions
UNIcon MODBUS Master
Protocol
L-BAL-E207-GB 1723 Index 003
Part.-No.
107/114