Woodward 9902-412 Sink/Source Digital Output Module

Product Brief Introduction The Woodward 9902-412 sink/source digital output module is a transistor-type discrete output board. It receives commands from the main controller and outputs 24VDC switching signals to drive small solenoid valves, indicator lamps and solid-state relay coils.
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Technical Specifications 24VDC power supply, multi-channel transistor output, support sink and source mode. Operating temperature: -40℃ ~ +70℃, short-circuit protection for each channel.

Functional Features Command reception, transistor switching output, overcurrent and short-circuit protection, output status feedback.

Application Scenarios Auxiliary solenoid valve drive, status indicator lamp control, small non-safety interlock output loops.

Performance Parameters Fast switching speed, low on-state voltage drop, reliable repeated action.

Structural Characteristics Rack pluggable module, output channel status and fault LED indicators.

Working Principle After receiving output command from the main processor, the internal transistor of corresponding channel turns on or off to switch the 24VDC load circuit and feed back output status.

Installation Requirements Confirm sink or source wiring mode before power on, match load current within rated range.

Usage Notes Do not connect inductive loads without freewheeling diode, check output loop continuity regularly.




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