Danfoss VLT 5027 Operating Instructions

VLT
®
5000 Series
Miscellaneous
WARNING 19
Fault in the EEprom on the power card
(EE ERROR POWER CARD)
There is a fault on the power card EEPROM. The
frequency converter will continue to function, but
is likely to fail at the next power-up. Contact
your Danfoss supplier.
WARNING 20
Fault in the EEprom on the control card
(EE ERROR CTRL CARD)
There is a fault in the EEPROM on the control
card. The frequency converter will continue to
function, but is likely to fail at the next power-up.
Contact your Danfoss supplier.
ALARM 21
Auto-optimisation OK
(AUTO MOTOR ADAPT OK)
The automatic motor tuning is OK and the frequency
converter is now ready for operation.
ALARM: 22
Auto-optimisation not OK
(AUTO MOT ADAPT FAIL)
A fault has been found during automatic motor
adaptation. The text shown in the display indicates a
fault message. The figure after the text is the error code,
which can be seen in the fault log in parameter 615.
CHECK P.103,105 [0]
See section Automatic motor adaptation, AMA.
LOW P.105 [1]
See section Automatic motor adaptation, AMA.
ASYMMETRICAL IMPEDANCE [2]
See section Automatic motor adaptation, AMA.
MOTOR TOO BIG [3]
See section Automatic motor adaptation, AMA.
MOTOR TOO SMALL [4]
See section Automatic motor adaptation, AMA.
TIME OUT [5]
See section Automatic motor adaptation, AMA.
INTERRUPTED BY USER [6]
See section Automatic motor adaptation, AMA.
INTERNAL FAULT [7]
See section Automatic motor adaptation, AMA.
LIMIT VALUE FAULT [8]
See section Automatic motor adaptation, AMA.
MOTOR ROTATES [9]
See section Automatic motor adaptation, AMA.
NB!:
AMA can only be carried out if there are
n
o alarms during tuning.
WARNING/ALARM 23
Fault during brake test (BRAKE TEST FAILED):
The brake test is only run after power-up. If Warning
has been selected in parameter 404, the warning
will come when the brake test finds a fault.
If Trip has been selected in parameter 404, the frequency
converter will trip when the brake test finds a fault.
The brake test may fail for the following reasons:
No brake resistor connected or fault in the
connections; defective brake resistor or defective
brake transistor. A warning or alarm will mean
that the brake function is still active.
WARNING 25
Brake resistor fault
(BRAKE RESISTOR FAULT):
The brake resistor is monitored during operation and
if it short-circuits, the brake function is disconnected
and the warning comes up. The frequency converter
will still be able to work, although without the
brake function. Turn off the frequency converter
and replace the brake resistor.
ALARM/WARNING 26
Brake resistor power 100%
(BRAKE PWR WARN 100%):
The power transmitted to the brake resistor is
calculated as a percentage, as a mean value over the
last 120 sec., on the basis of the resistance value of
the brake resistor (parameter 401) and the intermediate
circuit voltage. The warning is active when the
dissipated braking power is higher than 100%. If Trip
[2] has been selected in parameter 403, the frequency
converter will cut out while giving this alarm.
WARNING 27
Brake transistor fault
(BRAKE IGBT FAULT):
The brake transistor is monitored during operation and
if it short-circuits, the brake function is disconnected
and the warning comes up. The frequency converter
will still be able to run, but since the brake transistor has
short-circuited, substantial power will be transmitted
to the brake resistor, even if it is inactive.
Turn off the frequency converter and remove
the brake resistor.
MG.51.A9.02 - VLT is a registered Danfoss trademark
171

Danfoss VLT 5027 Specifications

General

Brand	Danfoss
Model	VLT 5027
Category	DC Drives
Language	English