Event message
Cause Remedy 1) 2)
No. Text
02 Internal error Error in the in-
ternal memory.
Q A serious error has occured. Contact
the manufacturer.
04 Sensor
defect:
extern.
temperature
Short circuit or
open circuit in
an external
temperature
sensor
Check the following points:
Q External temperature sensor cable
correctly connected to the controller?
Q Cable broken or short circuited?
Q External temperature sensor dama-
ged?
X
05 Over-
temperature
device
The controller
has become too
hot and has
switched off the
load output.
1. Allow the controller to cool down.
2. Check the following points:
Q Controller environment too hot
(heating, direct sunlight)?
Q Dirty cooling fins?
Q Inadequate controller ventilation?
Q Installation safety requirements not
adhered to (section 9.4)?
X
07 Battery vol-
tage too low
The cell voltage
of the battery
has dropped
below the min-
imum value.
Take the following measures if appro-
priate:
Q Charge the battery with an external
device if a directly connected load has
deep discharged the battery.
Q Check the capacity of the battery if
the event message is displayed fre-
quently. Replace battery if necessary.
Q Measure the battery voltage with a
voltmeter. Compare the measurement
with the controller display. If the
values deviate greatly then the con-
troller is damaged.
X
08 Battery vol-
tage too high
The cell voltage
of the battery
has risen above
the maximum
value.
Take the following measures if appro-
priate:
Q Remove other charging sources con-
nected to the battery. Problem cor-
rected?
Q Measure the battery voltage with a
voltmeter. Compare the measurement
with the controller display. If the
values deviate greatly then the con-
troller is damaged.
X
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