Elliott Digital Governors
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The EDG (Elliott Digital Governor) is a compact speed control for mechanical drives or induction generators. The EDG can be configured for NEMA A or NEMA D operation. The standard enclosure is NEMA 4X and suitable for wall mounting. > Improved speed control and reliability over hydraulic governorsՕ Full operational control - easily misplaced separate programmer not required Low initial cost relative to other electronic and most hydraulic governorsՕ Rapid availability relative to other electronic governors Sized for 19Ք rack mounting > Low initial cost Օ No separate programmer needed Local speed readout Օ Simple push button operation Large continuous LCD display Օ Two magnetic pickups (MPU) for redundancy MPU okay indication Օ Remote speed control capability (4-20 mA DC, 300 ohms) Check electrical and mechanical trip Օ Fail safe Programmable idle speed Օ Programmable ramp rate Programmable turbine speed Օ Pre-programmed electrical trip speed 3 to 1 speed range turndown capability Օ Governor valve closes when turbine trips > Two magnetic pickups 4-20 mA remote speed set point Remote trip signal Remote start/stop (when supplied) Remote Idle/Rated (when supplied) > 4-20 mA to actuator 4-20 mA to remote speed readout (when supplied)Alarm contact for MPU failure Trip output for trip solenoid > Electrical power 120/230 VAC 50 or 60 hertz; 300 watts max. Conduit opening Ֆ Two holes in bottom for 1 conduit hubsԕ UL and CSA certified, (others available) Air for actuator NEMA A Ֆ 40 PSIG min., 150 PSIG max. NEMA D 75 PSIG min., 150 PSIG max. > ֕ Remote trip capability (requires solenoid purchase) Remote start/stop capability Օ RS422 port Remote Idle/Rated >