Troubleshooting | 8
Pump Control Instructions INVEOR VFD R5 COBRA_EN_en
41 | 44
No.
Error name
Description of error
Possible causes/remedy
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 I2t motor protection
shutoff
The internal I2t motor
protection (can be
parameterised) has been
triggered
Permanent overload
43 Ground leak
Ground leak during a motor
phase
Insulation fault
45 Motor connection
disrupted
No motor current in spite of
control through frequency
converter
No motor connected or not
completely connected
Check phases or motor
connections and connect
correctly when necessary
46 Motor parameters
Plausibility check for motor
parameters failed
Parameter set not OK
47 Variable speed drive
parameters
Plausibility check for variable
speed drive parameters failed
Parameter set not OK, motor
type 33.001 and control method
34.010 not plausible
48 Type plate data
No motor data entered
Please enter the motor data
according to the motor
nameplate
49 Power class restriction
Max. overload of the variable
speed drive exceeded for more
than 60 sec.
Check application / reduce
load / use larger variable speed
drive
53 Motor tipped
Only for synchronous motors,
field orientation lost
Load too high
Optimise controller parameters
