Crompton Controls DCM - Manual (Page 26)

Emotron AB 01-2120-01r2 Installation 25
5.4 Connection terminals
There are 13 connection terminals on the front panel of the Emotron DCM.
Table 5 Labelling and functions of connection terminals.
Terminal Label Function
1 S1 Current transformer input (CTM xxx), blue wire.
2 S2 Current transformer input (CTM xxx), brown wire.
3 DIG
Digital input for closing contact. High-level switch or
external reset/Auto set. In dual-pump applications
terminal 3 is also used for communication between
the two DCMs.
4 SGND Signal ground for terminals 3 and 5.
5 TEMP
Input for motor thermistor (PTC), thermal contact, and/
or any voltage-free opening contact or motor protec-
tion relay.
6 ALARM
Alarm relay output. (The DCM MASTER uses this
terminal in series with the high-level switch.
7 C Common input for alarm and pump relay.
8 PUMP
Operation of relay pump motor (control signals for start
and stop equipment).
9 L1 Supply voltage L1.
10 (not used)
11 L2 Supply voltage L2.
12 (not used)
13 L3 Supply voltage L3.