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5-4. Changing Source Voltage
・
The PW-A power supply unit runs on AC100V, 115V 200V or 230V, which is selectable.
CAUTION
：
Be sure to disconnect the AC power cable from the unit or turn off the breaker on the power
distribution board before changing the source voltage. Use a fuse of the characteristics and
capacity shown below. If an inappropriate fuse is used, the PW-A power supply unit may become
faulty. Be careful.
Use an AC power cable suitable to the input voltage rating of the PW-A unit. Make sure that the
power switch is switched off, and connect the power cable to the AC power inlet securely.
Changing the source voltage
1. Make sure that the AC power cable is disconnected from the unit.
2. Select the intended source voltage with the switches on the bottom plate of the unit. (See Fig.6)
3. Take out the fuse from the fuse holder on the rear panel.
Replace it with an appropriate fuse. (See Fig.7)
Fuse rating
Source voltage
SWITCH
POSITION
Other PW8-3AQP
PW8-3AQP
AC100V
AC115V
AC120V
250V
3.15A
Time lag fuse
250V
4A
Time lag fuse
AC200V
AC220V
AC230V
250V
1.6A
Time lag fuse
250V
2A
Time lag fuse
1 2 3 4
1 2 3 4
1 2 3 4
1 2 3 4
Fig.6 Source Voltages and Switching Positions
FU
SE
Press this part in the arrow direction to remove.
Push the fuse until a click sound is head.
Fig.7 Replacing Protection Fuse
