GAC EEG7500 Manual
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GAC EEG7500 Manual

Enhanced electronic speed controller
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1
INTRODUCTION
GAC's EEG7500 enhanced electronic speed controller is designed to regu-
late engine speed on diesel and gaseous fueled engines. When paired with
a GAC actuator the EEG is a suitable upgrade for any mechanical gover-
nor system that needs flexibility, precision, or accurate control of governed
speed. The EEG7500 is designed for industrial engine applications from
generator sets, mechanical drives, pumps, and compressors to off-road mo-
bile equipment. Configuring is easy with GAC's free
The EEG7500 supports:
Flexible actuator compatibility including bidirectional actuators with or
Š
without actuator position feedback signal, bi-directional torque motors,
and Bosch-style throttle bodies.
Fully configurable digital and analog inputs and outputs
Š
Inputs: 5 analog, 2 digital
Š
Outputs: 1 analog, 3 digital
Š
0 - 5 V DC, 4 - 20 mA, 0 - 10 V DC ±3 V Input Ranges
Š
Speed Sync using CAN bus
Š
Virtual Input/Output Routing
Š
Feedback Speed Control Mode
Š
Variable Speed Capability
Š
Fuel Curve
Š
EEG7500 supports three
operating
Non-Feedback Speed Control (NFSC) provides standard PID governing function for use with proportional actuators. No position
Š
feedback sensor is required. PID (Proportional, Integral, Derivative) governor functions are optimized for best response and control
of the requested engine revolutions per minute (RPM).
Positioner Mode (PM) provides actuator positioning control and is used with proportional actuators or bidirectional (torque motor)
Š
actuators. A position feedback sensor is required. PID positioner functions are optimized for best response and control of the
requested actuator position.
Feedback Speed Control (FSC) combines NFSC and PM modes for use with proportional or bidirectional (torque motor) actuators.
Š
A position feedback sensor is required. The Speed PID position request is the input to the Positioner loop, the Position PID
optimizes response and control of the requested actuator position.
2
EEG7500 SPECIFICATIONS
Performance
Isochronous Operation
Governed Speed /
Sensor Frequency Range
Droop Range
comPLIance / STanDarDS
Agency
Communications
PHYSIcaL
Dimension
Weight
Mounting
reLIaBILITY
Vibration
Shock
Testing
LeD
Solid Green
Blinking Green
Unlit
Enhanced Electronic Speed Controller
GAConfig Tool
modes:
100 - 12 kHz
Up to 25 % regulation
CE and RoHS Requirements
USB, RS-232-C, SAE J1939
See
Section
3,
Controller Installation
18.4 oz [0.52 kgf]
Any position, vertical preferred
10 - 2000 Hz @ 7 g, per SAE J1455
20 g, 11 ms per SAE J1455
100 % Functional Testing
Ready. Controller is powered on.
Warning. Engine service due, or other. Dis-
played in GAConfig Tool System Status.
EEG7500
software.
InPUT / oUTPUT
± 0.25 %
Supply
Polarity
Power Consumption
Speed Sensor Signal Input
Actuator Output
Load Share /
Synchronizer Input
Reverse Power Protection
Transient Voltage Protection
Digital Switch Output(s)
envIronmenTaL
Ambient Temperature
Relative Humidity
Salt Spray
All Surface Finishes
No power.
1
12 - 24 V DC Battery systems
Negative Ground (Case Isolated)
200 mA continuous plus actuator current
400 mA with excitation at MAX load current
0 - 10 V DC (5 V Nominal, Selectable
Polarity, 145 Hz / V Sensitivity)
Protected to -40 V DC
-40 to 85 °C [-40 to 180 °F]
up to 90 % Non-Condensing
at 38 °C [100 °F] (per SAE J1455)
Fungus Proof and Corrosion Resistant
EEG7500 Enhanced Electric Governor 1-2021-A6
Governors America Corp. © 2021 Copyright All Rights Reserved
(6.5 to 32 V DC)
1.0 - 60.0 V RMS
10 A Continuous
±
or 0 V
3 V DC
60 V DC
Rated to 2 A DC
ASTM B117
PIB5115

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  • Page 1 GAC’s EEG7500 enhanced electronic speed controller is designed to regu- late engine speed on diesel and gaseous fueled engines. When paired with a GAC actuator the EEG is a suitable upgrade for any mechanical gover- nor system that needs flexibility, precision, or accurate control of governed speed.
  • Page 2 Do not rely exclusively on the governor system electronic actuator to prevent overspeed. A secondary shutoff device, such as a fuel solenoid must be used. eeG7500 connecTorS The following connectors are required when using the EEG7500. ITem no. ParT nUmBer...

  • Page 3: Terminal Definition

    The following wiring connections are available in the EEG7500. Items highlighted are the minimum connections required before starting. Read this entire manual before wiring components to the engine. For information on using the EEG7500 out of the box, see Section 8, Getting Started, in this manual.
  • Page 4 EEG7500 CONTROllER wIRING (CONTINUED) WIrInG for feeDBack SPeeD conTroL anD non-feeDBack SPeeD conTroL moDe EEG7500 Enhanced Electric Governor 1-2021-A6 PIB5115 Governors America Corp. © 2021 Copyright All Rights Reserved...
  • Page 5 EEG7500 CONTROllER wIRING (CONTINUED) WIrInG for PoSITIoner moDe EEG7500 Enhanced Electric Governor 1-2021-A6 PIB5115 Governors America Corp. © 2021 Copyright All Rights Reserved...
  • Page 6 Speed sensor voltage should be at least 1 V AC RMS during crank. Š If the EEG7500 detects no input from the magnetic (mag) pickup, the EEG will set the actuator to 0 V DC and set the speed to 0 RPM.
  • Page 7 Termination resistance should be set in parallel (60 Ω), 2 X 120 Ω. Terminal 19 = CAN Low, Terminal 20 = CAN High. Terminals 21-23 = RS232. EEG7500 Enhanced Electric Governor 1-2021-A6 PIB5115 Governors America Corp. © 2021 Copyright All Rights Reserved...
  • Page 8 TOOl onfig EEG7500 speed controller uses the GAConfig Tool to update parameter values on the EEG7500 governor, adjust performance settings, and view results. This PC tool provides a menu-driven user-friendly interface to update settings, and speed diagnostics and trouble- shooting. The tool also allows you to set up multiple scenarios and save them for use later or for sharing with other sites using the EEG7500.
  • Page 9 While using the tool, note the far right screen engine status bar, showing Engine Status information. Š Selecting STOP sets the engine speed to 0 RPM and shuts down the EEG7500 controller. It does not shut down the engine directly. Š...

  • Page 10: Engine Tuning

    60 s) mAG PICKUP Flywheel Teeth aDvanceD Governor SeTTInGS oUTPUT confIGUraTIon AUX enable, aux polarity Š Output configuration allows the EEG7500 to connect to data Droop Š points from outside the system, most commonly from SAE Speed Trim Š J1939.

  • Page 11: Position Control

    The adjustments menu includes all the menu settings for the Acknowledge error messages Š EEG7500 available in the GAConfig Tool. If you choose you Map routing between the EEG7500 and the J1939 system Š can use this menu with its multiple tabs to update parameter...

  • Page 12: Getting Started

    GETTING STARTED The EEG7500 can be set up and used out of the box, with an actuator attached, using default settings. This section details the initial installation and setup using the default settings. Wiring between the engine and the EEG7500 is required, and reviewing this document and default settings is advised.
  • Page 13 The EEG controller pairs physical input mapping of signals connected to the EEG with various input and output parameters. The EEG7500 supports 5 analog and 2 digital inputs, and 1 analog and 3 digital outputs. Physical inputs are mapped to the parameter set- tings in the GAConfig Tool.
  • Page 14 Once the control mode for your actuator is selected, the following minimum parameters must be set, or the default settings used, before starting the engine. GAC suggests using the default settings to first ensure the engine runs smoothly before adding additional devices.
  • Page 15 Additional adjustments may be required after engine load is applied. Normally adjustments made at no load achieve satisfactory perfor- mance. aDDInG a PoTenTIomeTer When using a potentiometer the following wiring ad settings are required on the EEG7500 controller. See the GAC potentiometer manual for additional information on GAC potentiometers and the Wiring section in this manual.
  • Page 16 Governor Settings menu. At the maximum speed setting the governor performance will be near isochronous, regardless of the droop adjustment setting. At the Engine Tuning menu, Variable Speed box, set Speed Maximum and Variable Speed End Gain. EEG7500 Enhanced Electric Governor 1-2021-A6 PIB5115 Governors America Corp. © 2021 Copyright All Rights Reserved...
  • Page 17 On or Off state of this input. on equals a closed state while Off is the open state. The On/Off state stays set even after the EEG7500 is disconnected from PC interface. EEG7500 Enhanced Electric Governor 1-2021-A6 PIB5115 Governors America Corp.
  • Page 18 Shut down power to EEG7500 and shutdown the GAConfig Tool. Restart the tool and add power to the EEG7500. This is the only pa- rameter in the tool that requires you restart the tool and the controller to configure.
  • Page 19 Position Increment and Position Decrement adds control of the actuator position by a fixed amount each time a switch is closed and then opened again. These inputs require the use of momentary switches. Contact GAC if more information is required.

  • Page 20: Additional Settings

    IMPORTING AND ExPORTING GACONFIG TOOl SETTINGS The GAConfig Tool allows settings in the tool to be stored, shared, and imported back into the tool for use on multiple EEG7500 units. Settings can be exported at any time while using the GAConfig Tool.
  • Page 21 ADDING lOOkUP TAblES The EEG7500 GAConfig Tool includes the ability to create and store lookup tables for use with Positioner and Fuel Limit functions. The tool lets you create tables that are then selected for use on the Position Tuning or FSC Fuel Limit menus of the GAConfig Tool.
  • Page 22 J1939 DTC’s are divided into two categories, active and stored. Active codes are present when a condition is present. Stored codes are a record that the condition occurred. EEG7500 can transmit the following DTCs over the CAN Bus. SYSTem faULTS / J1939 DTc’S...
  • Page 23 Previously active diagnostic trouble- 65227 Diagnostic Message 2 (DM 2) On Request shooting codes. 65228 Diagnostic Message 3 (DM 3) On Request Clear Previously Active Faults EEG7500 Enhanced Electric Governor 1-2021-A6 PIB5115 Governors America Corp. © 2021 Copyright All Rights Reserved...
  • Page 24 To save the data, click the Save button. The file is saved as a printable graphic (.png) file. Select Reset Pan to move the cursor on the grid back to start position. EEG7500 Enhanced Electric Governor 1-2021-A6 PIB5115 Governors America Corp. © 2021 Copyright All Rights Reserved...
  • Page 25 25 % apart. 25 to 100 % and must be 25 % apart from start position. This can be calibrated automatically by selecting the Calibrate Maximum button. EEG7500 Enhanced Electric Governor 1-2021-A6 PIB5115 Governors America Corp. © 2021 Copyright All Rights Reserved...

  • Page 26: Adjustments Setting

    Gain settings. Light Force Governing On - Off Light Force Governor improves resolution when controlling small and low current actuators including GAC T1 ATB, ALR/ALN, 100/103/104 series and normally closed actuators. Speed Anticipation On - Off Speed anticipation ON reduces RPM recovery time during high load transients and requires both no load (NLCU) and full load current (FLCU) values are entered.
  • Page 27 This change ends when position source is switched or EEG is re-powered. Only one parameter is needed, both do not have to be set. EEG7500 Enhanced Electric Governor 1-2021-A6 PIB5115 Governors America Corp. © 2021 Copyright All Rights Reserved...
  • Page 28 Clears any fault indicators. Force DM3 Clears all J1939 previously active faults as if a DM3 command was received. Items in Light Gray boxes are display only. EEG7500 Enhanced Electric Governor 1-2021-A6 PIB5115 Governors America Corp. © 2021 Copyright All Rights Reserved...

  • Page 29: System Troubleshooting

    Open the GAConfig tool. Click Connect. The Select Serial Port window displays. Click Advanced Configuration arrow. Select the number of the com port the EEG7000 is plugged into. If no com ports display call your GAC representative. Check to make sure your baud rate is set to 19200 and all other settings are as show in this example.
  • Page 30 SPEED parameter set too low If unsuccessful in solving instability, contact Gac for assistance. Gac@governors-america.com or call: 1-413-233-1888 EEG7500 Enhanced Electric Governor 1-2021-A6 PIB5115 Governors America Corp. © 2021 Copyright All Rights Reserved...

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