14
AT.654254.050 ver.1.0
Troubleshooting manual
№
Potential problem/Message
on the controller display
Probable causes
of message displaying
Remedies
Defective electronic panel
The readings of the voltage
measurement in Ud do not coin-
cide in a smaller direction with
the actually measured ones.
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
19
Alarm «DC bus Mах» is dis-
played
High supply voltage
During operation, the supply volt-
age is overvalued, as a result of
which the «DC bus Max» is trig-
gered to ensure a connection
with a stable voltage source
Defective electronic panel
The readings of the voltage
measurement in Ud do not coin-
cide upwards with the actually
measured ones.
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
20
Alarm «Grid Min» is displayed
Low supply voltage
During operation, the supply volt-
age sags; as a result, the «Grid
Min» network is activated to pro-
vide a connection with a stable
voltage source of the required
power
Defective electronic panel
The readings of the voltage
measurement in Ud do not coin-
cide in a smaller direction with
the actually measured ones.
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
21
Alarm «Grid Max» is displayed
High supply voltage
During operation, the supply volt-
age is overestimated, as a result
of which the «Grid Max» is acti-
vated to provide a connection
with a stable voltage source
Defective electronic panel
The readings of the voltage
measurement in Ud do not coin-
cide upwards with the actually
measured ones.
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
22 Alarm
«Unbalance U»
is dis-
played
The supply voltage has a phase
imbalance
During operation, there is a volt-
age imbalance in different
phases; as a result, «Unbalance
U» is triggered to provide a con-
nection to a stable voltage
source
Содержание AK06
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