13
AT.654254.050 ver.1.0
Troubleshooting manual
№
Potential problem/Message
on the controller display
Probable causes
of message displaying
Remedies
Replace the electronics panel
with a working one
The adjusted number for the
measured voltage in the link is
entered incorrectly
Restore the correct settings for
measuring voltage in the link
14
Alarm «Fail AutoSet» is
dis-
played.
On the controller, it is displayed
only during autotest in vector
mode
When conducting auto determi-
nation of motor parameters, it
was not possible to get the cor-
rect data
Connection of motor to the drive
is incorrect, or there is a trans-
former in the scheme
Incorrectly entered parameters
of the measured equipment
(rated current, voltage, PMM
RPM speed)
15
Alarm «Phasing Iabc»
is dis-
played
Incorrectly connected current
sensors behind the sine filter
Restore the connection as indi-
cated in the electrical diagram.
Reconnect the connectors to ver-
ify the reliability of the contacts
One of the transformers/current
sensors behind the sine filter is
defective
Check transformers for servicea-
bility by dialing using a tester
with a connected and discon-
nected load current resistor; if a
malfunction is detected, replace
it with a working one
16 Alarm
«Charge DC bus» is dis-
played
Defective charge unit or power
unit
When a signal is applied to the
charge of a link, there is no
charge, the voltage across the
capacitors does not increase.
Replace charge circuits consist-
ing of charging resistors and
starter or BVN unit
Defective electronic panel
When charging, the voltage rises
but the controller does not meas-
ure this voltage.
Replace the electronics panel
with a working one
Incorrectly entered adjusted
number of measured voltage in
the link
Restore the correct settings for
measuring voltage in the link
17
Alarm «Short circuit DC bus»
Faulty power unit
When a signal is applied to the
charge of a link, there is no
charge, the voltage across the
capacitors does not increase.
Replace BVN
Defective electronic panel
When charging, the voltage rises
but the controller does not meas-
ure this voltage.
Replace the electronics panel
with a working one
Incorrectly entered adjusted
number of measured voltage in
the link
Restore the correct settings for
measuring voltage in the link
18
Alarm «DC bus Min» is dis-
played
Low supply voltage
During operation, the supply volt-
age draws down and as a result,
the «
DC bu
s Min» is triggered to
provide a stable voltage source
with the required power
