TAVRIDA ELECTRIC VCB15, Product Manual

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7.3.2 CM Secondary Connections
Figure 40
Terminal arrangement of the CM
The CM_16_1 has secondary connectors (as shown below).
CM relay functionality:
• Relay 1 - “ISM main contact position” relay;
• Relay 2 - “Ready” relay;
• Relay 3 - “Malfunction or Loss of Auxiliary Supply” relay
The “ISM main contact position“ relay maintains its state (1 NO and 1 NC contacts with common point) after the
CM power supply disconnection.
Relay functionality and the number of relays which share the same functionality can be changed upon request.
Please contact the nearest Tavrida Electric sales representative for more information.
The CM is connected only to the ISM actuator coil circuits. The position of the ISM main contacts is determined by
detecting the ISM coil inductance level. The CM “ISM main contact position” relay indicates the result.
Table 18 - CM Terminal Arrangement
XT1 XT3
Terminal No. Connection Terminal No. Connection
1 Power supply input (+) 1 Actuator coil output
2 Power supply input (-) 2 Actuator coil output
3 Relay output 1 NO
4 Relay output 1 Com
5 Relay output 1 NC
6 Relay output 2 NO
7 Relay output 2 Com
8 Relay output 2 NC
9 Relay output 3 NO
10 Relay output 3 Com
11 Relay output 3 NC
12 Close dry input
13 Close dry input
14 Trip dry input
15 Trip dry input