Error detection and troubleshooting
Operating manual for INVEOR α | DOC01539818 - 0004 | 2017-01 | V2.0 EN 113
No. Error name Description of error Possible causes/remedy
32 Trip IGBT ** Protection of the IGBT module
against overcurrent has been
triggered
Short circuit in the motor or
motor feed line / controller
settings
33 Overvoltage of intermediate
circuit **
The maximum intermediate
circuit voltage has been
exceeded
Feedback by motor in
generator mode / mains
voltage too high / faulty
setting for rotation speed
controller / brake resistor
not connected or defective /
ramp times too short
34 Undervoltage of
intermediate circuit
The minimum intermediate
circuit voltage has not been
reached
Mains voltage too low,
mains connection defective
/ check wiring
35 Excess motor temperature Motor PTC has been triggered Overload of the motor (e.g.
high torque at low motor
speed) / ambient
temperature too high
36 Power failure Interruption to grid voltage
present
A mains phase is missing /
mains
voltage has been disrupted
38 Excess IGBT module
temperature
Excess IGBT module
temperature
Insufficient cooling, low
motor speed and high
torque, switching frequency
too high
39 Overcurrent ** Maximum output current of
drive controller exceeded
Motor stalled / check motor
connection / incorrect
speed controller setting /
check motor parameters /
ramp times too short / brake
not open
40 Excess frequency converter
temperature
Inner temperature too high Insufficient cooling / low
motor speed and high
torque / switching frequency
too high permanent
overload / reduce ambient
temperature / check fan
42 I
2
T motor protection shut-
off
The internal I
2
T motor
protection (can be
parameterised) has been
triggered
Permanent overload