Digital Reference Unit 

with High, Low, and Intermediate Set Points

Applications

The Digital Reference Unit generates a precise voltage that may be used wherever a very accurate reference signal is required. Typical use combines the Digital Reference Unit with other Woodward controls for regulation of speed, load, pressure, or voltage. 

Description

Reference Set Points—The Digital Reference Unit provides electronic control of the reference-signal voltage. Lower limit, upper limit, and an intermediate set point can be selected. 

Ramp Rates—The Digital Reference Unit has two separate and independent ramp 

rates (which determine the time required to change from the low limit to the high limit). Each ramp rate can be set for a ramp rate from a minimum of 5 seconds to a maximum of 10 minutes. 

Location of Adjustments—Rocker switches under the cover allow selection of ramp rate ranges. All other adjustments are made from potentiometers accessible on the front of the cover.

Specifications 

Construction: The Digital Reference Unit consists of a printed circuit board housed in a steel chassis and cover. 

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