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Terminal numbers and descriptions are given on the table below.
CPM 310 G Terminal Explanations
CAUTION!
The “Notes” columns on the table suggests a sample application and is not normative. “DC(+)” notes,
e.g., are given assuming that the circuit breaker, the power transformer and auxiliary devices are
cabled in the way that their common terminals are supplied with DC(-). If an application does not
correspond to the case here assumed, do not take the note columns into consideration and create the
actual cabling project required to provide the healthy operation of the system.
Terminal No. Terminal Description Notes
1 Programmable Input 1 -
2
Programmable Input 1, common terminal.
DC (+)
3 Programmable Input 2 -
4
Programmable Input 2, common terminal.
DC (+)
5 Programmable Input 3 -
6
Programmable Input 3, common terminal.
DC (+)
7 Programmable Input 4 -
8
Programmable Input 4, common terminal.
DC (+)
9 Programmable Input 5 -
10
Programmable Input 5, common terminal.
DC (+)
11 Programmable Input 6 -
12
Programmable Input 6, common terminal.
DC (+)
13 Programmable Input 7 -
14
Programmable Input 7, common terminal.
DC (+)
15 Not used. -
16 RS 485, 0VISO Reference voltage.
17 RS 485, Termination Resistance. -
18 RS 485, A terminal. -
19 RS 485, B terminal. -
20 Not used. -
21 Auxiliary Supply Terminal DC (-) or AC neutral.
22 Auxiliary Supply Terminal DC (+) or AC phase.
23 Internal Circuit Earthing Terminal -
24 Not used. -
25 Current Input Terminal for Phase R (1/5)A
26 Terminal for Current Bridge -
27 Current Input Terminal for Phase S (1/5)A
28 Terminal for Current Bridge -
29 Current Input Terminal for Phase T (1/5)A
30 Terminal for Current Bridge -
31
Current Output Terminal for Neutral Point
(1/5)A
32 Terminal for Current Bridge -
33 Not used. -
34 Trip signal common terminal DC (+)
35 Trip signal N/C terminal DC (+) out.
36 Trip signal N/O terminal DC (+) out.
37 Watchdog common terminal DC (+) or AC phase.
38 Watchdog N/C terminal Alarm / Signal output.
39 Watchdog N/O terminal Alarm / Signal output.
40
Programmable Output 1 Common Terminal
DC (+)
41 Programmable Output 1 N/C Terminal DC (+) out.
42 Programmable Output 1 N/O Terminal DC (+) out.
43
Programmable Output 2 Common Terminal
DC (+)
44 Programmable Output 2 N/C Terminal DC (+) out.
45 Programmable Output 2 N/O Terminal DC (+) out.
46
Programmable Output 3 Common Terminal
DC (+)
47 Programmable Output 3 N/O Terminal DC (+) out.
48
Programmable Output 4 Common Terminal
DC (+)
49 Programmable Output 4 N/O Terminal DC (+) out.
50
Programmable Output 5 Common Terminal
DC (+)
51 Programmable Output 5 N/O Terminal DC (+) out.
52
Programmable Output 6 Common Terminal
DC (+)
53 Programmable Output 6 N/O Terminal DC (+) out.
54 Not used.
55 Not used.
56 Not used.
57 Not used.
58 Not used.
Auxiliary Supply and Earthing
Secondary Current Terminals