Deif PPM 300, Designers Handbook

Page: 417 / 521

Table 13.4 Changeover relay, normally de-energised coil
Function
Coil
NC circuit
NO circuit
NC NO
(1)
(2)
(4)
(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.
4. Normally closed circuit : The normally closed circuit opens when the coil is
energised.
Table 13.5 Changeover relay, normally energised coil
NC NO
Function
Coil
NC circuit
NO circuit
(1)
(2)
(4)
(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.
4. Normally closed circuit : The normally closed circuit closes when the coil is
de-energised.
13.2.4 Digital input characteristics and configuration
Symbol Hardware modules
IOM3.1
IOM3.4
EIM3.1
GAM3.2
The controller can use digital inputs for many purposes. Examples: Command buttons, breaker feedback, and alarms.
DESIGNER'S HANDBOOK 4189340911K UK Page 417 of 521