1126800 SmartPAC 2 with WPC Integration
Page 36 Chapter 2 Installing SmartPAC 2 and WPC
local codes require it) is recommended for these circuits with a minimum 75°C temperature
rating. To perform the wiring, follow these steps.
1. Locate the power supply board (situated under the main processor board). You will see
the connector for AC power.
2. Determine how you will bring wiring from your 115 VAC power source (or 230V source
if applicable) to the unit. For 115 VAC, you need three wires—high (black), neutral
(white) and ground (green). For 230 VAC, wires are black and red with green or
green/yellow for ground.
3. Find the 115V-230V voltage selector switch. It can be found on the side of the power
supply board (see Figure 2 - 37, page 160).
• If your AC power is 115V, check to see that “115V” is displayed in the switch cavity.
• If your AC power is 230V, push the handle to the right.
Push handle
to the left for
115V
(to the right for
230V)
115V
Figure 2 - 6. Setting Voltage Selector Switch
4. Run the power wires to WPC through flexible liquid-tight conduit to the enclosure.
Because WPC is rated NEMA 12 (protected against dust and oil), you must use conduit
of the same rating and make proper connections to ensure NEMA 12 protection with the
enclosure.
5. To make ground connections, refer to the diagrams at the end of the manual and to the
WPC connections wiring, Table A at the end of the manual.
6. Connect power wires. For 115 VAC power, connect the black wire to HI terminal and
white wire to NEU. (For 230 VAC connect black wire to HI terminal and red wire to
NEU). Attach wires to the terminal block connector as instructed on page 30. Make sure
that you do not start at the wrong end of the connector. Put it over the socket the way it
will plug in, and note wire markings next to the socket before starting.
7. Plug connector back into its slot. Double check connections with markings at the
connector base to make sure you did not wire it backwards.
8. Make all necessary conduit connections to ensure NEMA 12 protection “NEMA 12
protection” . WPC is rated NEMA 12 (protected against dust and oil). Be sure to label
all wires in a way consistent with your press’s electrical prints.
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