Table 13.2 Relay, normally de-energised coil
NO
Function
Coil
NO circuit
(1)
(2)
(3)
1. Function: The digital output function assigned to the terminals. The controller
software activates the function. For example: Breakers > [Breaker] > Command
> [*B] Close.
2. Coil: The controller energises the relay coil when the function is activated.
3. Normally open circuit: The normally open circuit closes when the coil is
energised.
Table 13.3
Relay, normally energised coil
NO
Function
Coil
NO circuit
(1)
(2)
(3)
1. Function: The digital output function assigned to the terminals. The controller
software activates the function. For example: Breakers > [Breaker] > Command
> [*B] Close.
2. Coil: The controller de-energises the relay coil when the function is activated.
3. Normally open circuit: The normally open circuit opens when the coil is de-
energised.
DESIGNER'S HANDBOOK 4189340911K UK Page 416 of 521
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