User’s Manual
CD3000M-3PH up to 90A
Honeywell
29
www.honeywell.com/imc
6.4.5 Digital input Command
PO
WER UNIT
Reset
1
6
5
7
8
9
10
11
12
13
14
15
16
17
18
2
A2+
3
A1-
4
COM
NO/NC
H.B.
Contact
PO
WER UNIT
Reset
1
6
5
7
8
9
10
11
12
13
14
15
16
17
18
2
A2+
3
A1-
4
COM
NO/NC
H.B.
Contact
6.4.6 RS485 Command
RS485-A
RS485-B
PO
W
E
R
UN
IT
Reset
1
6
5
7
8
9
10
11
12
13
14
15
16
17
18
2
A2+
3
A1-
4
COM
NO/NC
H.B.
Contact
PO
W
E
R
UN
IT
Reset
1
6
5
7
8
9
10
11
12
13
14
15
16
17
18
2
A2+
3
A1-
4
COM
NO/NC
H.B.
Contact
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 CD3000M 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 cycle).
If the load has been changed calibration procedure must be done again.