Vacon nx User Manual page 117

FAULT TRACING
Fault Fault
code
44 Device changed
(different type)
45 Device added
(different type)
49 Division by zero
in application
50 Analogue input
I < 4mA (sel.
in
signal range 4
to 20 mA)
51 External fault
52 Keypad
communication
fault
53 Fieldbus fault
54 Slot fault
56 PT100 board
temp. fault
57 Identification
58 Brake
59 Follower
communication
60 Cooling
61 Speed error
62 Run disable
63 Emergency
stop
64 Input switch
open
65 PT100 board 2
temp fault
24-hour support +358 (0)201 212 575 • Email: vacon@vacon.com
Possible cause
Option board or power unit changed.
New device of different type or different
power rating.
Option board of different type added.
Division by zero has occurred in
application program.
Current at the analogue input is < 4mA.
−
control cable is broken or loose
− signal source has failed
Digital input fault.
The connection between the control
keypad (or NCDrive) and the frequency
converter is broken.
The data connection between the fieldbus
Master and the fieldbus board is broken
Defective option board or slot
Temperature limit values set for the
PT100 board parameters have been
exceeded
Identification run has failed.
Actual status of the brake is different
from the control signal.
SystemBus is broken between Master and
Follower
Coolant circulation on liquid-cooled drive
has failed.
Motor speed is unequal to reference
Run enable signal is low
Command for emergency stop received
from digital input or fieldbus
Drive input switch is open
Temperature limit values set for the
PT100 board parameters have been
exceeded.
More inputs are selected than actually
connected.
PT100 cable is broken.
Correcting measures
Reset
Set the option board parameters again if
option board was changed.
Set converter parameters again if power
unit was changed.
Reset
Set the option board parameters again.
Contact your distributor if the fault re-
occurs while the converter is in run
state. If you are application programmer
check the application program.
Check the current loop circuitry.
Remove fault situation on external
device.
Check keypad connection and possible
keypad cable.
Check installation.
If installation is correct contact the
nearest Vacon distributor.
Check board and slot.
Contact the nearest Vacon distributor.
Find the cause of temperature rise
Run command was removed before
completion of identification run.
Motor is not connected to frequency
converter.
There is load on motor shaft.
Check mechanical brake state and
connections.
Check option board parameters.
Check optical fibre cable.
Check reason for the failure on external
system.
Check encoder connection.
PMS motor has exceeded the pull out
torque.
Check reason for Run enable signal.
New run command is accepted after
reset.
Check the main power switch of the
drive.
Find the cause of temperature rise.
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