Wintriss ShopFloorConnect SMI 2, Installation Manual

Page: 19 / 44

SFC Machine Interface (SMI 2) Installation Manual 1146400
Chapter 2
– Installation
19
Wiring the SMI 2
Connecting AC Wiring to the SMI 2 Enclosure
ELECTRIC SHOCK HAZARD
Do not apply AC power until all other electrical connections and installation procedures are
complete.
Failure to comply with these instructions could result in death or serious injury.
To make AC input connections to the SMI 2, do the following, referring to Figure 2-3 on page 20 and
wiring diagram Figure 1 or 2 at the end of the manual. Remember to allow plenty of room to make
wiring connections.
1. Determine how you will bring wiring from your 115 VAC power source (or 230 VAC source if
applicable) to the unit. These wires should be connected directly to the machine control supply
voltage. No. 16 wire is recommended; use No. 14 wire if local codes require it.
For 115 VAC, you need three wires—line (black), neutral (white) and ground (green). For 230
VAC, wires are black and red, with green or green/yellow for ground.
2.
Turn the screw on the enclosure door’s latch 1/4 turn clockwise to release the latch, and swing
open the enclosure door.
3. Run the AC power wires to SMI 2 through flexible liquid tight conduit to the knockout in the
lower right corner of the enclosure. Because SMI 2 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.
4. Connect the ground (green or green/yellow) wire to the setscrew terminal on the ground stud on
the bottom of the enclosure near the right side (see Figure 2-3)
To make the connection, strip the wire 1/2 in. (12.7 mm) from the end, loosen the screw on the
terminal, insert the exposed wire into the hole, and tighten down the screw.
5. Connect power wires to the input connectors on the inside wall of the SMI 2 enclosure labelled
“Line” and “Neut,” as shown in Figure 2-3, below, and Figure 1, SFC Machine Monitor 2 Wiring
Diagram at the end of this manual.