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User's Manual ver. 2.0
6.4.5 Digital input Command
6.4.6 RS485 Command
If load current decreases for partial or total load failure (sensitivity 20% standard adjustable via
RS485) the yellow LED becomes ON and alarm relay changes status.
If CD3200 is still in conduction with no input signal (LED green OFF) it means that there is a short
circuit on thyristors and red LED (SC) becomes ON.
The diagnostic is active only when the switching period is longer than 60ms (3 main
voltage cycles).
If the load has been changed calibration procedure must be done again.
CD3200 up to110A
Reset
1
2
3
4
7
8
9
10
COM
H.B.
Contact
11
NO/NC
12
13
14
15
16
17
18
5
6
A2+
A1-
Reset
1
2
3
4
7
8
9
10
COM
H.B.
Contact
11
NO/NC
12
13
14
15
16
17
18
5
6
A2+
A1-
27
Honeywell
Reset
1
2
3
4
7
8
9
10
COM
H.B.
Contact
11
NO/NC
12
13
14
15
16
17
18
5
6
A2+
A1-
Reset
1
2
3
4
7
8
9
10
COM
H.B.
Contact
11
NO/NC
12
13
14
15
16
17
18
5
6
A2+
A1-
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