11.3
FAULT CODES
Fault
code
Fault ID
Fault name
Possible cause
How to correct the fault
1
1
Overcurrent (hard-
ware fault)
There is too high a current
(>4*I H) in the motor cable.
Its cause can be 1 of these.
•
a sudden heavy load
increase
•
a short circuit in the
motor cables
•
the motor is not the
correct type
•
the parameter settings
are not properly made
Do a check of the loading.
Do a check of the motor.
Do a check of the cables and con-
nections.
Make an identification run.
Set the acceleration time longer
(P3.4.1.2 and P3.4.2.2).
2
Overcurrent (software
fault)
2
10
Overvoltage (hard-
ware fault)
The DC-link voltage is
higher than the limits.
•
too short a decelera-
tion time
•
high overvoltage spikes
in the supply
Set the deceleration time longer
(P3.4.1.3 and P3.4.2.3).
Use the brake chopper or the
brake resistor. They are available
as options.
Activate the overvoltage controller.
Do a check of the input voltage.
11
Overvoltage (software
fault)
3
20
Earth fault (hardware
fault)
The measurement of cur-
rent tells that the sum of the
motor phase current is not
zero.
•
an insulation malfunc-
tion in the cables or the
motor
•
a filter (du/dt, sinus)
malfunction
Do a check of the motor cables and
the motor.
Do a check of the filters.
21
Earth fault (software
fault)
5
40
Charging switch
The charging switch is
closed and the feedback
information is OPEN.
•
operation malfunction
•
defective component
Reset the fault and restart the
drive.
Do a check of the feedback signal
and the cable connection between
the control board and the power
board.
If the fault occurs again, ask
instructions from the distributor
near to you.
7
60
Saturation
•
Defective IGBT
•
de-saturation short cir-
cuit in the IGBT
•
a short circuit or an
overload in the brake
resistor
This fault cannot be reset from the
control panel.
Switch off the power.
DO NOT RESTART THE DRIVE or
CONNECT THE POWER!
Ask instructions from the factory.
VACON · 336
FAULT TRACING
11
LOCAL CONTACTS: HTTP://DRIVES.DANFOSS.COM/DANFOSS-DRIVES/LOCAL-CONTACTS/