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34020113EN/AA - Page 25
4. Maintenance
4.1 Identification of anomalies
4.2 Transfer to the manual bypass
Transfer to the manual bypass for source
S1:
1 - Manually transfer the load to source S1.
2 - Set switch Q2 4 to the OFF position
(position 0).
3 - Set switch Q1BP 6 to the ON position
(position 1).
The load is supplied by source S1 via the
bypass.
4 - Set switches Q1 1 and Q3 7 to the
OFF position (position 0).
The operation for source S2 is
identical, using switches Q2 and
Q2BP.
Interlocking of the bypass lines is
ensured by use of a single key that
must be inserted on the bypass
switch to be operated.
General-alarm
LED 21
-
-
-
-
-
S1 31 or S2 32
LED
-
-
-
-
Static-switch
LED 33 or 34
-
-
-
-
-
The meaning of all these anomalies are detailed on the display:
Select the alarm: the corresponding informations are displayed.
Buzzer
Beeps
Beeps
Beeps
Beeps
-
-
Meaning
Internal STS fault.
Source outside
tolerances, load still
supplied.
Source outside
tolerances, no voltage.
The load cannot be
supplied by this source.
Static-switch fault.
Overload.
Load not supplied.
System output
LED 38
-
-
-
-
Q1 Q5 Q6 Q2
Q1BP Q2BPQ3
0
1
0
1
000
111
Q1 Q5 Q6 Q2
Q1BP Q2BPQ3
0
1
0
1
000
111
Q1 Q5 Q6 Q2
Q1BP Q2BPQ3
0
1
0
1
000
111
1
4
6
7