Delta RMC70 User Manual download pdf (Page 43)

Appendix A: Wiring

deltamotion.com 41

PLC

RMC Module

Input b

Input Common

Power

Output

Input a Output

D8 Module Discrete I/O Wiring

The eight I/O on the D8 expansion module are individually

configurable via software to be inputs or outputs.

Discrete Outputs

The discrete outputs are solid state relays. When off, they have high

impedance, and when on, they have low impedance (50 Ω max, 25 Ω

typical). The maximum current is 75 mA, and the maximum voltage is

30 V.

Outputs can be wired in either a high-side or low-side configuration.

Because all the outputs share a common, all outputs on the same

module must be wired the same.

When switching inductive loads, place a diode or tranzorb across the

load to protect the switch when it turns off. Otherwise, a voltage spike

in excess of the 30 V rating of the SSR may occur. See the D8 Wiring

topic in the RMCTools help for more details.

Discrete Inputs

The discrete inputs are compatible with 12-24 VDC signals. Because all

the inputs share a common, all inputs on the same module must be

wired the same.

Example

RMC Module

+VCC (12-24 VDC)

Output

Resistive

Load

…

Output Cmn

RMC Module

+VCC (12-24 VDC)

Output

Resistive

Load

…

Output Cmn

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Delta RMC70 User Manual Page 43

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