ESD5150

ANALOG GOVERNOR

● Same as our ESD5100 Series except with a 4-    20mA current output instead of a PWM voltage  output. 

 Can be used in a variety of speed control    applications outside of GAC actuators.

The ESD5100 Series speed control unit is an all- electronic device designed to control engine speed with fast and precise response to transient load changes. This closed loop control, when connected to a proportional electric actuator and supplied with a magnetic speed sensor signal, will control a wide variety of engines in an isochronous or droop mode. It is designed for high reliability and it's hard potted to withstand the engine environment.

APPLICATION OF THE MONTH:

FINNING ATLAS COPCO UK
HYDRAULIC DRIVEN 3PHASE AC GENERATOR

UK based IPU Group's Engine Controls Division and Engine Starting Division developed a control system for a hydraulically driven 3 Phase AC generator, powered by a 3400 series Cat engine, under contract from Air Compressor Manufacturer ATLAS COPCO UK. The object was to develop a flow/pressure regulating control system to maintain a 50 Hz / 690 VAC output with no more than 5% variation under all load conditions. The solution required a Governors America Corp. ESD5150 closed loop speed controller combined with a Continental Hydraulics Proportionally controlled regulating actuator valve. The ESD5150 controller provides a 4-20mA output signal used to control the Continental Hydraulics proportional valve, its speed input comes from a GAC MSP679 magnetic sensor. The 4-20mA control signal equates to a generator frequency range of 47 to 54 Hz, a 12mA output provided the nominal 50 Hz operating frequency. With GAC’s ESD5150 controller operating in the isochronous mode and with the PID governor parameters optimized, steady state frequency regulation was recorded to be within 0.45%, load acceptance and load rejection tests were performed to document the generators output frequency being maintained within 0.6 Hz, exceeding all of the customer’s performance specifications and expectations. http://www.ipu.co.uk/


FAQ:

How can we adjust engine speed without accessing the control panel to reset the governor each time?

GAC speed controllers offer the option of having either a single remote speed adjustment (speed trim) or wide range remote variable speed control.  A potentiometer, with a value that corresponds to your desired speed range, can be externally mounted for more convenient, easy access.   GAC offers a full line of potentiometers, connectors, harness assemblies, sensors and accessories for ease of installation and operation.

 


CONVERSION FORMULAS



GAC SUBSCRIBE TO OUR CHANNEL ON


GAC GOVERNORS AMERICA CORP YOUTUBE!



GAC WILL BE CLOSED NOVEMBER 24TH AND 25TH FOR THANKSGIVING!