12.2.2. Wiring Binary Input Connections

Connections to Binary Inputs are made through an 8-pos terminal block (A4-TB1). The terminal block is removable to simplify wiring. The terminal connections are labeled along the edge of the Auxiliary I/O Board next to terminal block (A4-TB1). Each Binary Input is optically isolated and has a polarized pair of terminals. Observe the pos(+) and neg(-) designators when wiring the terminal block.

*Before wiring the Binary Inputs, verify the Binary Input voltage selection jumpers are configured for the correct input voltage (see Section 14.3). Incorrect voltage configuration may damage the Auxiliary I/O Board (A4).

Procedure

1. De-energize and lock out all ac and dc voltages to ATevo.
2. Allow internal voltages to dissipate, and check with a voltmeter.
3. Remove safety shield.
4. Route Binary Input wiring to Auxiliary I/O Board (A4) through an unused enclosure knockout.
5. Connect wiring (#22-14 AWG) to appropriate terminals on the Auxiliary I/O Board (A4-TB1).
6. Strip each wire 0.25in / 6.4mm, and tighten terminal screws.
7. Replace the safety shield.
8. Re-energize ATevo.

Notes

• Binary Inputs are configurable for 12Vdc, 24Vdc, 48Vdc, or 130Vdc.
• Terminal block (A4-TB1) is compression type, accepting #22-14 AWG wire.
• Correct polarization is required.