Alarm Description - LEGRAND 4 226 81 Installation And User Manual

Automatic transfer switch
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12. Parameters
12.12

Alarm description

CODE
A01
A02
A03
A04
A05
A06
A07
A08
A09
A10
A11
A12
30
DESCRIPTION
Q1 (Line 1) timeout
Q2 (Line 2) timeout
S.Q1 (Line 1) wrong phase sequence
S.Q2 (Line 2) wrong phase sequence
Load not powered timeout
Emergency
Intervention for protection CTR Q1
Intervention for protection CTR Q2
S.Q1 Line 1 generator not available
S.Q2 Line 2 generator not available
Maintenance operations S.Q1
Maintenance operations S.Q2
ALARM EXPLANATION
The Q1 changeover device did not perform the opening or clo-
sing operation within the max. time set. After alarm A03 genera-
tion, the opening or closing command is inhibited.
Alarms are generated only if at least one of the two power
sources S.Q1 or S.Q2 are present.
The Q2 changeover device did not perform the opening or clo-
sing operation within the max. time set. After alarm A04 genera-
tion, the opening or closing command is inhibited.
Alarms are generated only if at least one of the two power
sources S.Q1 or S.Q2 are present.
The phase sequence recorded on S.Q1 (line 1) does not corre-
spond to the one programmed.
The phase sequence recorded on S.Q2 (line 2) does not corre-
spond to the one programmed.
The load has been without power for a time longer than the
maximum specified with P05.11, either because both source
lines (S.Q1 and S.Q2) were absent or because both Q1 and Q2
remained open.
Alarm generated by the opening of the external input with
Emergency function. Both Q1 and Q2will be opened.
Q1 (Line 1) has tripped because of a plant protection( contact
CTR), signalled by activation of the input with function Line 1
breaker protection trip.
Q2 (Line 2) has tripped because of a plant protection (contact
CTR), signalled by activation of the input with function Line 2
breaker protection trip.
Alarm generated by the input Generator S.Q1 (Line 1) ready.
Alarm generated by the input Generator S.Q2 (Line 2) ready.
Alarm generated when the number of operations for S.Q1 reach
the value sated in the menu M12. Use the menu commands to
restore the function and to reset the alarm.
Alarm generated when the number of operations for S.Q2 reach
the value sated in the menu M12. Use the menu commands to
restore the function and to reset the alarm.

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