PWR-480B INSTALLATION MANUAL
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4.2 DC VOLTAGE TERMINAL BLOCK
Figure 10 – PWR-480B 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 are divided into two sections: direct output and 4A current
limited output. Connect the output devices according to your application requirements.
The 4A current limited outputs are each protected by a miniature circuit breaker (MCB), 4A,
1p, C-Char device.
DC OK signals
DC Outputs
4 A MCB
protected DC
Outputs
