LED Relays K1
Cause
Reaction of Controller
Adjustment
Code
(for function
Explanation
factory setting)
3 x
De-energized,
HALL-IC
Controller turns the motor off.
terminals
Incorrect signal from the Hall-ICs,
Automatic restart if no more
11-14
error in the commutation.
fault is recongized.
interrupted.
4 x
De-energized,
Line failure
(only for 3 ~ types)
terminals
The device is provided with a built-in Following a shut off, a start up Checking power
11-14
phase-monitoring function for the
attempt is made after approxi- supply.
interrupted.
mains supply. In the event of a mains
mately 15 seconds, if the
interruption (failure of a fuse or
voltage supply is high enough.
mains phase) the unit switches off
This keeps occurring until all
after a delay (approx. 200 ms).
3 supply phases are available
Function only when load for the con- again.
troller is high enough.
5 x
De-energized,
Motor blocked
EC-Controller switches off,
Check if motor
terminals
If after 8 seconds cummutation no
renewed attempt to start after
is freely rotatable.
11-14
speed is measured > 0, the fault
about 2,5 sec. Final shut off,
interrupted.
”Motor blocked” is released.
when fourth starting test fails.
It is then necessary to have an
enabling reset or to disconnect
the power supply.
6 x
De-energized,
IGBT Fault
EC-Controller switches off,
terminals
Shortcut earth or shortcut of motor
renewed attempt to start after
11-14
winding.
about 60 sec.
Code 9.
interrupted.
Final shutoff, if - following a
second starting test – a second
fault detection is detected
within a period of 60 seconds.
7 x
De-energized,
DC undervoltage
If the intermediate circuit
terminals
If the voltage drops below a specified voltage rises again within
11-14
limit, the device is shut off.
75 seconds above the limit, an
interrupted.
automatic starting test is run.
If the intermediate circuit vol-
tage remains below the limit
for more than 75 seconds, the
device is shut off with a fault
message.
8 x
De-energized,
DC overvoltage
If the intermediate circuit
terminals
If the voltage increases below a
voltage drops again within
11-14
specified limit, the motor is switched
75 seconds below the limit, an
interrupted.
off. Reason for excessively high input
automatic starting test is run.
voltage or alternator motor operation. If the intermediate circuit vol-
tage remains above the limit
for more than 75 seconds, the
device is shut off with a fault
message.
9 x
Energized,
IGBT cooling down period
terminals
IGBT cooling down period for
11-14
approx. 60 sec.
bridged.
Final shut off after 2 cooling-off
intervals
Code 6.
30
