Technical information

Digital Outputs (DO)

Caution:

• DO terminals accept one 16 gage (1.29mm) wire or two 18 gage (1.02mm) wires. The

selected wire gage must be consistent with the load current rating.

• DO wiring cannot be intermixed with DI, UI, S-Link, LON and AO wiring.

• MN 100, MN 150, and MN 200 controllers are Class 2 devices. Each digital output can

support up to 24 Vac/Vdc at 1.0 amp (24 VA) pilot duty.

Note: Digital Output wiring can be intermixed with class 2 power wiring.

Each DO is an isolated Form A (SPST) relay. If the transformer is sized correctly, the 24 Vac

Class 2 Controller power source (Figure-7) may be used for load power.

Table-2 Relay Output Load Specifications.

Figure-7 DO Loads and Controller Power Sharing Common Transformer.

Specification Value

Maximum Relay Contact Switched Output Voltage

voltage at 24H

terminal

Maximum Output Load @ 24 VAC, Pilot Duty 24 VA

Minimum Permissible Load 10.0 mA at 5Vdc

Maximum Off-state Leakage Current 3.5 mA

Minimum Cycles at Rated Load @ 0.4 Power Factor 300,000 cycles

Switched output voltage is equivalent to value of input voltage.

24 H

24 G

Class 2

Transformer

24 VacPrimary

GND

Load

NO1

NO2

NOx