A1 Status Out OC
off GND = ON
A2 Operation Out
OC *
off GND = ON
Cause
Explanation
Reaction of Controller
Adjustment
6 x
ON
IGBT Fault
Short circuit to earth or short circuit of the
motor winding.
EC-Controller switches off, renewed at-
tempt to start after about 60 sec.
Code 9
Final shutoff, if - following a second
starting test
–
a second fault detection
is detected within a period of 60 sec-
onds.
It is then necessary to have a reset by
disconnecting the line voltage.
7 x
ON
Intermediate undervoltage
If the DC-link voltage drops below a speci-
fi
ed limit the device will switch off.
If the DC-link voltage rises above the
limit within 75 seconds, then the cotrol-
ler will attempt to start.
Should the DC-link voltage stay for
more than 75 seconds below the limit,
the device will switch off with a fault
message.
8 x
ON
Intermediate overvoltage
If the DC-link voltage increases above a
speci
fi
ed limit, the motor will switch off.
Reason for excessively high input voltage
or alternator motor operation.
If the DC-link voltage drops below the
limit within 75 seconds, then the cotrol-
ler will attempt to start.
Should the DC-link voltage stay above
the limit for more than 75 seconds, the
device will switch off with a fault mes-
sage.
9 x
ON
IGBT cooling down period
IGBT cooling down period for approx.
60 sec.
Final shutoff after 2 cooling-off intervals
Code 6
IGBT cooling down period for approx.
60 sec.
Final shutoff after 2 cooling-off intervals
Code 6.
11 x
ON
Error motor start
If a starting command is given (enable
available and Setpoint > 0) and the motor
does not start to turn in the correct direc-
tion within 5 minutes, then an error mes-
sage will appear.
If it is possible to start the motor in the
target direction of rotation after the error
message, the error message will disap-
pear
Should a voltage interruption occur in
the meantime, the time taken up to the
switch off will begin again.
Check if motor is freely rotatable.
Check if the fan is driven in reverse
direction by an air stream (
Behav-
iour 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 off.
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 sec-
onds, the device will switch off 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 off.
If the line voltage drops below the
speci
fi
ed limit within 75 seconds, then
the controller will attempt to start.
Should the line voltage stay above the
speci
fi
ed limit for more than 75 sec-
onds, the device will switch off with an
error message.
Assembly instructions
ECblue
Diagnostics / Faults
L-BAL-F056-GB 1939 Index 003
Part.-No. 00700562-GB
27/35
