Pro-face PRO-iO2 Installation Manual page 14

AC Power Module (DR*-****FU)
There are two AC input terminals: L (Live, non-earthed), and N
(Neutral, earthed). Be sure to connect the L terminal to the power
supply's non-earthed terminal, and the N terminal to the power
supply's earthed terminal.
If there is a fault in the power supply (E.g., the AC line and the
earth line are shorted), the fuse connected to the L terminal will
break and stop the flow of power.
100VAC to 240VAC
(1) 1A Fuse
(Fast-break type)
(2) Fuse (Up to 16A)
or circuit breaker
*1
(3) Load
24VAC to 250VAC
or 5VDC to 30VDC
*1 When operating devices with inductance loads, such as magnets and valves, Pro-face
recommends you use a diode, surge killer or varistor.
WARNING
50/60 Hz
L N
1 Q1 2 1 Q2 2 1 Q3 2 1 Q4 2
50/60 Hz
I1 I2 I3 I4 I4 I6
Menu/Ok
Q4
24VAC to 250VAC
50/60 Hz
5VDC to 30VDC
-14-
C
Q9 QA
24VAC to 250VAC
50/60 Hz
5VDC to 30VDC