Fault Codes - Danfoss Vacon NXP Series Operating Manual

Operating guide | VACON® NXS/NXP Air-cooled

12.10 Fault Codes

Table 55: Fault Codes
Fault Fault
code
1 Overcurrent
2 Overvoltage
Earth fault
3 (1)
5 Charging
switch
6 Emergency
stop
7 Saturation trip
162 | Danfoss A/S © 2018.06
Subcode Possible cause
in T.14
S1 = Hard- There is too high a current (>4*I H) in
ware trip the motor cable. Its cause can be 1 of
the following:
S2 = Re-
served
• a sudden heavy load increase
S3 = Cur-
• a short circuit in the motor cables
rent con-
• the motor is not the correct type
troller su-
pervision
S4 = User
configured
overcur-
rent limit
exceeded
S1 = Hard- The DC-link voltage is higher than the
ware trip limits.
S2 = Over-
• too short a deceleration time
voltage
• high overvoltage spikes in the sup-
control su-
ply
pervision
• Start/Stop sequence too fast
The measurement of current tells that
the sum of the motor phase current is
not zero.
• an insulation malfunction in the ca-
bles or the motor
The charging switch is open, when the
START command is given.
• operation malfunction
• defective component
Stop signal has been given from the
option board.
• defective component
• brake resistor short circuit or over-
load
How to correct the fault
Do a check of the loading.
Do a check of the motor.
Do a check of the cables and connections.
Make an identification run.
Set the deceleration time longer.
Use the brake chopper or the brake resistor.
They are available as options.
Activate the overvoltage controller.
Do a check of the input voltage.
Do a check of the motor cables and the mo-
tor.
Reset the fault and start the drive again.
If the fault shows again, ask instructions from
the local distributor.
Do a check of the emergency stop circuit.
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. If this fault
shows at the same time with Fault 1, do a
check of the motor cable and the motor.
Specifications
DPD00910G