Maintenance; Changing The Line Voltage (Legacy) - Data I/O UniSite-xpi User Manual

Maintenance

Changing the Line
Voltage (Legacy)
Figure 2-19
Removing the Voltage Selector
Wheel
UniSite-xpi User Manual
Data I/O has configured UniSite to operate on 115 Vac unless specified
otherwise. Older units have a line voltage indicator that is visible through
the window in the back panel door covering the voltage selector wheel,
shown in Figure 2-19. The ac line voltage that will be used to operate
UniSite must match the number indicated in the window. If the voltage
you need to use is NOT the same as the number in the window, follow
the steps below to change the selected voltage.
CAUTION: You could damage UniSite if you operate it with the wrong
line voltage.
1. Disconnect the power cord.
2. Using a flat-tipped screwdriver, gently pry open the door that covers
the voltage selector wheel.
3. As shown in Figure 2-19, pull the voltage selector wheel out of its
slot.
4. Rotate the selector until the correct line voltage points away from
UniSite's rear panel. Insert the selector back into its slot.
Note: The voltage wheel has two positions: 115 Vac and 230 Vac. These are
nominal voltages—each voltage has high and low limits. The limits for
115 Vac is 90 Vac to 132 Vac and the limits for the 230 Vac position are
180 Vac to 264 Vac.
5. Snap the door closed. The correct voltage now appears in the
window.
2. Setup and Installation
0056-2
2-39