Section 3 Modules CP-C MM messaging module
M&I – AC 900F Controller 57
Electrical connection
CP-C MM_electrical connection.png
Terminal assignment
Terminals Designation Function
REMOTE OFF If the terminals are short circuited by a normally
open contact (R < 1 kΩ), for instance, the power
supply unit is switched off remotely.
If the resistance R between the terminals is
> 10 kΩ, the power supply unit is switched on.
Attention:
Terminal potential = Input voltage
INPUT OK
message
Potential-free change-over contact
11-14 closed and 11-12 opened, when the power
supply unit input voltage is > 85 V AC / 90 V DC.
11-12 closed and 11-14 opened, when the power
supply unit input voltage is 82 V AC / 70 V DC.
11-14 also closed with REMOTE OFF.
OUTPUT OK
message
Potential-free change-over contact
21-24 closed and 21-22 opened, when the power
supply unit output voltage is 20.2 V AC / V DC.
21-22 closed and 21-24 opened, when the power
supply unit output voltage is 19.8 V AC / V DC.
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