Appendix A: Wiring
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Discrete Output Wiring
The RMC150E, DI/O and UI/O outputs are solid state relays. When off,
they have high impedance, and when on, they have low impedance.
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
RMC150E
Discrete I/O Wiring
topic in the RMCTools help for more details.
DI/O and UI/O Module
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.
RMC150E Module
RMC150E
DI/O
UI/O
On Impedance
50Ω max, 25Ω typical
Max Current
75 mA
(50 mA for Class I Div 2)
75 mA
(Class I Div 2 not available)
Max Voltage
30 V
RMC Module
+VCC (12-24 VDC)
Output
Output
Resistive
Load
…
Output Cmn
RMC Module
+VCC (12-24 VDC)
Output
Output
Resistive
Load
…
Output Cmn
