LOW VOLTAGE ELECTRICAL CONNECTIONS
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4.2 DC VOLTAGE TERMINAL BLOCK
Figure 9
– PWR-120 DC Output Power Connections
4.2.1 DC OK Monitoring
The DC voltage terminal block provides two wiring terminals (13-14), which monitor the status
of the switching power supply (DC OK feature). When the power supply module runs correctly,
lines 13 and 14 form a normally closed contact. If the power module experiences problems
(i.e. output overload causing output voltage to be reduced by less than 90% of nominal) these
lines open. Lines 13 and 14 are decoupled from the power output lines and can be connected
to a free digital input to signal this alarm condition.
4.2.2 DC Direct Output
The 24 volt DC Output terminals allow direct connection to your devices according to your
application requirements.
DC OK signals
DC Outputs