6
vacon • 94
Control Keypad
Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/
18
Unbalance
(Warning only)
Unbalance between power modules in
paralleled units.
Subcode in T.14:
S1 = Current unbalance
S2 = DC-Voltage unbalance
Should the fault re-occur, contact your
local distributor.
29
Thermistor fault
The thermistor input of option board
has detected too high resistor
temperature.
Check resistors.
Check thermistor connection (If
thermistor input of the option board is
not in use it has to be short circuited).
31
IGBT temperature
(hardware)
IGBT Inverter Bridge overtemperature
protection has detected too high a
short term overload current
35
Application
Problem in application software
Contact your distributor. If you are
application programmer check the
application program.
37
Device changed
(same type)
Option board or control unit changed.
Same type of board or same power
rating of drive.
Reset. Device is ready for use.
Old parameter settings will be used.
38
Device added
(same type)
Option board or drive added.
Drive of same power rating or same
type of board added.
Reset. Device is ready for use.
Old board settings will be used.
39
Device removed
Option board removed.
Drive removed.
Reset. Device no longer available.
40
Device unknown
Unknown option board or drive.
Subcode in T.14:
S1 = Unknown device
S2 = Power1 not same type as
Power2
Contact the distributor near to you.
41
IGBT temperature
IGBT Inverter Bridge overtemperature
protection has detected too high a
short term overload current
44
Device changed
(different type)
Option board or control unit changed.
Option board of different type or differ-
ent power rating of drive.
Reset.
Set the option board parameters again
if option bard changed. Set converter
parameters again if power unit
changed.
45
Device added
(different type)
Option board or drive added.
Option board of different type or drive
of different power rating added.
Reset.
Set the option board parameters again.
51
External fault
Digital input fault.
Remove fault situation from external
device.
54
Slot fault
Defective option board or slot
Check board and slot.
Contact your nearest distributor.
56
PT100 fault
Temperature limit values set for the
PT100 have been exceeded.
Find the cause of temperature rise.
60
Cooling fault
The cooling circulation of the liquid
cooled drive has failed.
Check the reason for the cooling fail-
ure from the external system.
Table 34. Fault codes
Fault
code
Fault
Possible cause
Correcting measures
