GAC ESD-5556 기술 정보 - 페이지 3

{카테고리_이름} GAC ESD-5556에 대한 기술 정보을 온라인으로 검색하거나 PDF를 다운로드하세요. GAC ESD-5556 12 페이지. Speed control unit

Adjusting Crank Termination (ESD-5556 only)

To protect the engine from harm the CRANK TERMINATION adjustment is factory set at full

CCW [Lowest Setting]. To adjust CRANK TERMINATION speed setting, rotate the CRANK

adjustment to full CW. Crank the engine and simultaneously turn the CRANK adjustment slowly

CCW until the proper crank termination speed is reached. In operation, when the cranking

termination set point is reached, the green CRANK LED will illuminate. (Cranking has

terminated).

The ESD-5556 is set for manual reset. To reinstate engine cranking, battery power must be

removed and then reapplied which will recycle the control.

Adjusting Overspeed

When the engine is running at the desired speed, push and hold the TEST button. Rotate the

OVERSPEED adjustment CCW until the red OVERSPEED LED lights and the relay energizes. Current

to the actuator will be removed and the engine will shut off.

Release the TEST button. After the engine stops, press the RESET button or remove battery

power. Restart the engine and it will return to the original speed setting. The overspeed function is

now set to approximately 10% above the requested speed.

If a different value of overspeed setting is required, raise the engine speed to the desired

overspeed value, i.e. 115%. Rotate the OVERSPEED adjustment CCW until the red OVERSPEED

LED lights and the relay enginerizes.

Always use the relay contacts provided to shut down the system by a means other than the governor or

actuator. It is recommended that an overspeed protection system be routinely tested and verified during the

Governor Speed Setting

The governed speed set point is increased by a CW rotation of the SPEED adjustment control.

Remote speed adjustment can be obtained with an optional 5K Speed Trim Control.

(See Diagram 1.)

Governor Performance

Once the engine is at operating speed and at no load, the following governor performance

adjustment can be made.

Rotate the GAIN adjustment CW until instability develops. Gradually move the adjustment

CCW until stability returns. Move the adjustment one division further CCW to insure stable

performance.

Rotate the STABILITY adjustment clockwise until instability develops. Gradually move the

adjustment counterclockwise until stability returns. Move the adjustment one division

further to insure stable performance (270° pot).

Technical Information

WARNING

scheduled service of equipment.