Distech Controls IO-R-34 Посібник - Сторінка 8

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Grounding

An earth ground spade lug (0.187") is provided on the base of the IO-R-34 for connection to earth ground. For

maximum protection from electrostatic discharge or other forms of EMI, connect

AWG or larger wire. Keep these wires as short as possible.

See

Figure 4

for the location of the earth grounding wire for the IO-R-34.

Figure 4

Earth ground connection required to the IO-R-34 module as well as IO-R-16 modules, if used.

IO-R-16

Power Wiring

The IO-R-34 can be powered by wiring to a

IO-R-34 can share transformer power with an EC-BOS-8.

If powering from a 24V transformer, do not also power equipment (other than an EC-BOS-8) with the same

Note

transformer. Otherwise, conducted noise problems may result. Also, do not ground either side of the

transformer's 24V secondary.

As shown in

Figure

5, the IO-R-34 2-position power connector is located at the lower corner of the unit. Unplug the

connector from the module and install wire connections to the connector as shown.

Do not apply 24V power (reinsert connector plug into the IO-R-34) until all other wiring is completed,

Note

including IO-R-34

Do not connect two or more IO-R-34 modules together. Connecting IO-R-34 modules directly to each

Caution

other may allow for hardware configurations that lead to equipment damage.

D5 5C6 D6

D7 7C8 D8

9C10 D10

AO1 0V AO2 AO3 0V AO4

IO-R-16

IO-R-34

U10

U11

dedicated

inputs

and outputs. See

AO5

0V AO6

AO7

0V AO8

U12

U13

U14

U15

U16

Class 2, 24V transformer, or to a 24Vdc power source. The

"Power up and Initial Checkout,"

Remote IO-R-34 Module Mounting and Wiring Guide

August 2, 2017

Wiring Details

each

earth ground using a #16

Earth Ground

page 15.