CMW112 Woodward Series Datasheet & Technical Manual

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Woodward CMW112 Control Unit The Woodward CMW112, also cataloged as the CMW112 Control Unit, operates as a dedicated hardware component...

SKU: CMW112

Manufacturer: Woodward
Product No.: CMW112
Product Type: Control Units
Product Origin: USA
Payment:T/T, Western Union
Weight: 720g
Shipping port: Xiamen
Warranty: 12 months

Description Reviews

Woodward CMW112 Control Unit

The Woodward CMW112, also cataloged as the CMW112 Control Unit, operates as a dedicated hardware component for digital engine and turbine parameter monitoring within governor and process management networks.

Hardware Specifications

Parameter	Specification
Model	CMW112
Brand	Woodward
Origin	USA
Weight	0.3 - 0.72 kg (variant dependent)
Dimensions	19.1 x 2.5 x 23.5 cm / 160 x 130 x 60 mm
Operating Temp	-40 to +85 deg C
Power Consumption	Application dependent
Power Supply	12/24 VDC (9-32 VDC range)
Inputs	8 analog (4-20 mA / 0-5 V), 16 digital (NO/NC configurable)
Outputs	8 relay outputs (5 A @ 250 VAC)
Communication	CAN, Modbus TCP/IP, RS-485
Excitation CT Ratio	500A/5A (excitation variant specific)
Accuracy	0.2 class (excitation variant specific)
Protection Rating	IP54 - IP65 (variant dependent)

Actuator Loop Feedback Response

The control unit utilizes an internal microprocessor to execute closed-loop PID control algorithms, managing actuator loop feedback response timelines. Real-time digital inputs and analog current signals are processed concurrently to resolve dynamic speed and load setpoints. Integrated circuitry layout supports harmonic distortion suppression to prevent electrical noise from corrupting low-voltage signal paths across the 9-32 VDC power supply bounds.

Frequently Asked Questions

Q: How does the internal hardware mitigate signal drift across the extended operating temperature range?

A: The printed circuit board layout features specific thermal heat sink dissipation profiles that stabilize internal analog-to-digital converters, preserving a 0.2 class accuracy from -40 to +85 deg C.

Q: Can the serial and Ethernet communication channels function simultaneously?

A: Yes. The hardware architecture processes CAN, RS-485 Modbus, and Modbus TCP/IP networks via independent physical layers, ensuring zero data collision or latency penalties during concurrent telemetry operations.

Q: What fail-safe actions occur when the hardware detects an overspeed or overload state?

A: The integrated processor bypasses secondary logic tracks to drive the 8 output relays into a pre-configured open or closed state within milliseconds, isolating the connected governor or fuel actuator loop.

Field Installation Guidelines

Chassis Grounding: Connect a dedicated low-impedance ground strap from the grounding stud on the unit chassis directly to the primary electrical enclosure ground plane.
CT Splicing Restrictions: For excitation current transformer variants, ensure the secondary circuits are completely de-energized or shorted prior to routing or landed onto the terminal blocks to prevent open-circuit induction faults.
Cable Separation: Route all 4-20 mA and communication cables through separate, grounded steel conduits away from 250 VAC relay wiring or high-current power feeds to avoid cross-talk.
Fastener Torque: Tighten all termination screws to the recommended standard engineering torque matrix to minimize mechanical vibration fatigue and high-resistance connection points.

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