A1 Status Out
OC
o
ff
GND = ON
A2 Operation
Out OC *
o
ff
GND = ON
Cause
Explanation
Reaction of Controller
Remedial measures
8 x
ON
Intermediate overvoltage
If the DC-link voltage increases
above a speci
fi
ed limit, the motor
will switch o
ff
.
Reason for excessively high input
voltage or alternator motor opera-
tion.
If the DC-link voltage drops
below the limit within 75 seconds,
then the cotroller will attempt to
start.
Should the DC-link voltage stay
above the limit for more than
75 seconds, the device will
switch o
ff
with a fault message.
9 x
ON
IGBT cooling down period
IGBT cooling down period for ap-
prox. 60 sec.
Final shuto
ff
after 2 cooling-o
ff
in-
tervals
Code 6
IGBT cooling down period for ap-
prox. 60 sec.
Final shuto
ff
after 2 cooling-o
ff
intervals
Code 6.
11 x
ON
Error motor start
If a starting command is given (en-
able available and Setpoint > 0)
and the motor does not start to turn
in the correct direction within 5 mi-
nutes, then an error message will
appear.
If it is possible to start the motor
in the target direction of rotation
after the error message, the error
message will disappear
Should a voltage interruption
occur in the meantime, the time
taken up to the switch o
ff
will
begin again.
Check if motor is freely rotatable.
Check if the fan is driven in re-
verse direction by an air stream
(
Behaviour in rotation by air
current in reverse direction).
12 x
ON
Line voltage too low
If the DC-link voltage drops below a
speci
fi
ed limit the device will switch
o
ff
.
If the line voltage rises above a
speci
fi
ed limit within 75 seconds,
then the controller will attempt to
start.
Should the line voltage stay
below the speci
fi
ed limit for more
than 75 seconds, the device will
switch o
ff
with an error message.
13 x
ON
Line voltage too high
Cause to high input voltage
If the line voltage increases above
a speci
fi
ed limit, the motor will
switch o
ff
.
If the line voltage drops below
the speci
fi
ed limit within 75 sec-
onds, then the controller will at-
tempt to start.
Should the line voltage stay
above the speci
fi
ed limit for more
than 75 seconds, the device will
switch o
ff
with an error message.
Assembly instructions
ECblue
Diagnostics / Faults
L-BAL-F056-GB 2022/45 Index 005
Part.-No. 00700562-GB
35/44
