GAC EEG7000 User manual
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Enhanced Electronic Governor EEG7000 with GACong Tool 8-2021-D6 PIB1009
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PERFORMANCE
Isochronous Operation ± 0.25 %
Speed Range 100 Hz to 12 kHz
Droop Range 0.1 - 25 % regulation
Speed Ramp Time
Acceleration. Adj. Range 25 to 2000 rpm/s
Deceleration. Adj. Range 25 to 2000 rpm/s
Starting Fuel Adjustment
Actuator Ramp Rate 1 to 100 %
Actuator Begin Point 0 to 100 %
Overspeed Set Point 400 to 6000 rpm
Crank Termination Set Point 100 to 1000 rpm
Speed Switch Adjustment Range 1000 to 100000 Hz
Speed 1 0 to 6000 rpm
Speed 2 and 3 150 to 6000 rpm
Reverse Power Protection Yes
Transient Voltage Protection 60 V DC
Load Share / Synchronization Input 0 - 10 V DC
(5 V Nominal, Selectable
Polarity, 145 Hz / V Sensitivity)
Speed Sensor Signal Input 1.0 - 60.0 V RMS
Speed Switch (SSW) Rated to 2 A DC
GAC’s EEG7000 enhanced electronic governor speed controller is designed to
regulate engine speed on diesel and gaseous fueled engines. When paired with
a GAC actuator the EEG7000 is a suitable upgrade for any mechanical governor
system that needs exibility, precision, and accurate control of governed speed.
The EEG7000 is designed for industrial engine applications including generator
sets, mechanical drives, pumps, compressors and off-road mobile equipment.
GACong Tool adds the ability to monitor and set parameters from your PC. With
CAN J1939 capabilities allow it to accept TSC1 messages over USB as a mini
engine control module (ECM). It can also be controlled directly over SAE J1939
aftermarket displays such as ComAp, Dynagen, and Murphy – a solution for every
application.
Mini-ECM, J1939 TSC1 control capable with Diagnostic Messages (DM)
Isochronous, variable, or customizable droop governing
3 xed speeds or variable speeds with direct 0 – 5 V DC or 4 – 20 mA input
Built-in USB port for easy conguration with free GACong Tool software
Black smoke reduction, speed ramp control, load sharing/synchronizing
option,
Cummins EFC-capable
Built-in speed switch output for crank or overspeed
Battery voltage, engine hour meter and service timer
Fully sealed, IP67
Multi - V DC
Supports gaseous or diesel
Built-in congurable speed switch output
ENVIRONMENTAL
Ambient Temperature -40 to 85 °C [-40 to 180 °F]
Relative Humidity up to 90 % non-condensing at 38 °C
Vibration 4 g, 20 - 1000 Hz
Shock Per J1455
Testing 100 % Functional Testing
All Surface Finishes Fungus Proof and Corrosion Resistant
ELECTRICAL
Power Supply 12 - 24 V DC Battery Systems
Continuous Supply Voltage 6.5 to 32 V DC
Polarity Negative Ground (Case Isolated)
Power Consumption 100 mA (No Actuator Current)
Actuator Current 6 A Continuous, 8 A Peak
COMPLIANCE / STANDARDS
Agency CE and RoHS Requirements
Communications USB, RS-232-C, SAE J1939
PHYSICAL
Dimension See Section 3, Installation,
Weight 8 ozf [227 gf]
Mounting Any position, Vertical preferred
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Before you begin, note the following required items:
• A Windows 7 or better computer with USB port and
Internet connection
• 14-pin connector (GAC EC1502) or cable harness
assembly (CH1520)
Mount in a cabinet, engine enclosure, or sealed
metal box.
Vertical orientation allows for the draining of
uids in moist environments.
Avoid extreme heat. Do not mount next to
turbocharger, exhaust manifold, or other high
temperature equipment.
An overspeed shutdown device, independent of the governor system, should be used to prevent loss of engine
control which may cause personal injury or equipment damage.
Do not rely exclusively on the governor system electric actuator to prevent overspeed. A secondary shutoff
device, such as a fuel solenoid must be used.
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LED COLOR DEFINITION
1 SOLID GREEN Controller is powered on
2 OFF No faults, system is working properly
2SOLID YELLOW Warning: Engine service due, or other
warning as displayed in the GACong
Tool. If using J1939 see the J1939 CAN
INFO / DIAGNOSTIC TROUBLESHOOT-
ING CODES (DTC) section in this guide.
2 BLINKING RED Actuator current high, shutdown and retry
in 30 s.
2 SOLID RED System shut-down:
• Actuator current exceeds 8.0 A for 12
ms continuously
• Engine speed drops or rises faster
than 25 kHz/s
• Engine speed exceeds overspeed
• User commanded engine shutdown
• Incompatible hardware
• Loss of magnetic pickup signal
Error messages display in the GACong Tool, and on the controller’s LED display.
in
[mm]
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14-pin AMPSEAL requires GAC mating connector kit EC1502 or cable harness CH1520.
Use a crimping tool to connect the connector and harness.
*Pin assignments are not the same as EDG6000.
Review all diagrams and/or additional notes before wiring.
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PIN DEFINITION GAUGE NOTES
1 Actuator (+) 16 Polarity not required for actuator
2Actuator (-) 16
3 Magnetic Pickup (+) 20 * Ground to Pin 12
4Aux Input 20 * 0 - 10 V Range, 5 V Nominal,
Selectable Polarity
5Speed Select A 20 * Ground to Pin 12 to Enable
6 Speed Select B 20 * Ground to Pin 12 to Enable
7 +5.0 V Output 20 * Power for external sensors (50 mA)
8 Speed Switch Output 16 * 2 A MAX, LSO
9 Variable Speed Input 20 * Potentiometer, 0 - 5 V DC or 4 - 20 mA,
selectable polarity
10 Battery Ground (-) 16 Battery ground
11 Battery Power (+) 16
A 10 A fuse must be installed in the positive
battery lead to protect against any overload
or short circuit or reverse voltage
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Ground Reference
/ Speed Select
Ground
20 Ground reference for magnetic pick-up (-),
sensors and switches
13 CAN H / RS232 Tx 20 CAN bus or RS-232 congurable through
the GACong Tool
14 CAN L / RS232 Rx 20
• Use the GAC mating connector EC1502 or
cable harness CH1520 with the 14-pin AMP-
SEAL with the EEG7000.
• Ground the EEG7000 controller case to the
engine battery (-).
• Wires must be twisted and/or shielded for
their entire length (14 turns per foot). Ground
shield to case.
• Minimum gap between speed sensor and
gear teeth is 0.02 in [0.5 mm].
• The minimum speed sensor voltage is 1 V
AC RMS during crank.
• See the product bulletins of the equipment
you are connecting to for more detailed wir-
ing information on those items.
• Parameter values are assigned to the input
and output wiring using the GACong Tool.
WIRING RECOMMENDATIONS
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PIN 3 - MAGNETIC SPEED PICK-UP
A magnetic speed sensor detects when ring gear teeth pass the tip of the magnetic speed sensor. The output signal is an AC sine wave
whose frequency is converted to crankshaft revolutions per minute (rpm). The following are required:
• A magnetic pickup must be installed in the engine bell housing, ring gear case, or fabricated bracket.
• All wires must be twisted and/or shielded for their entire length (14 turns per foot).
• Ground shield to case. Do not tie case to ground.
• The magnetic speed sensor voltage should be at least 1 V RMS while cranking. During operation, 5 to10 V RMS is
recommended.
• If the EEG7000 controller detects no input from the magnetic pickup, the controller sets the actuator to 0 V DC and the speed to
0 rpm. If the controller detects loss of magnetic pickup, LED 2 turns solid red and the system must be reset.
• To reset the EEG7000, cycle DC power.
• The magnetic speed sensor connections MUST BE TWISTED AND/OR SHIELDED for their entire length.
• The speed sensor cable shield must only be connected to the case. The shield should be insulated to ensure that no other part
of it comes into contact with engine ground, otherwise stray signals may be introduced into the speed switch.
• Minimum gap between speed sensor and gear teeth is 0.02 in [0.5 mm]. When the engine is stopped, adjust the gap between
the magnetic speed sensor and the ring gear teeth. Usually, backing out the speed sensor 3/4 turn after touching the ring gear
tooth will result in a satisfactory gap.
Aux accepts signals from:
• GAC accessories
• Auto synchronizers
• Load sharing units
• Other governing accessories
The auxiliary (AUX) pin accepts input signals from load sharing units, auto synchronizers, and other governor system accessories. The
AUX input from Pin 4 is activated by selecting Auxiliary Enable in the GACong Tool Advanced Conguration menu and selecting the
desired Aux / Load Sharing pane.
The AUX function decreases engine speed with increasing input voltage, the polarity shift function increases engine speed with in-
creasing input voltage. AUX input is nominally 5.0 V +/- 5.0 V DC. The GACong Tool Aux/Load Sharing allows you to set polarity as
decreasing or increasing speed.
Pins 1 and 2 are dedicated to actuator usage. Polarity is not required. See your specic actuator manual for details.
PINs 1 and 2 - ACTUATOR CONNECTION
PIN 4 - AUXILIARY INPUT
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WIRING COMBINATIONS
PIN 5 PIN 6 Speed Mode
Open Open Variable Speed (or Fixed Speed)
Ground Ground Fixed Speed 1
Open Ground Fixed Speed 2
Ground Open Fixed Speed 3
PINS 5 AND 6 - SPEED SELECT
The EEG7000 has two inputs, which in various combinations, allow the user to use three xed speed settings or the variable speed
setting. This is accomplished by tying inputs to ground or leaving them open. Fixed Speed 1 can be set to idle as required.
Speed is set from the GACong Tool from the Engine Tuning menu in
the Fixed Speed and Variable Speed panes.
• To set variable speed, update to the desired rpm. See Section 10,
Setting Variable Speed Parameters for more details.
• Automatically calibrate Input Minimum and Input Maximum settings
related to the variable speed potentiometer or other related control
using Calibrate Minimum or Calibrate Maximum.
• To calibrate the minimum percent set the potentiometer to the
desired start value and click Calibrate Minimum button.
• To calibrate the maximum percent set the potentiometer to the
highest end value and click Calibrate Maximum button.
• The difference between the analog minimum speed settings will
be at least 25 % to prevent rough idle.
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Pin 7 provides analog input from external trim or variable speed potentiometers. Connect a 5 kΩ potentiometer between Pins 7, 9 and
12 as shown in Variable Speed.
PIN 7 - ANALOG INPUT
When the EEG7000 detects engine speed has reached the user dened Limit / Threshold value, the EEG7000 controller changes the
state of Pin 8. Speed switch output (SSW) can provide overspeed protection, starter cutoff (crank termination), and other general aux-
iliary functions.
• The SSW adjustment range is 100 to 6000 rpm. The default value is 1800 rpm and the default state (Mode) is NORMALLY OPEN.
• When NORMALLY OPEN is selected the SSW output on Pin 8 will energize at the set speed. When NORMALLY CLOSED is
selected output from Pin 8 will de-energize at the speed setting.
• When the LATCHING box is checked the SSW output state is xed until power to the SSW is cycled. When the box is not checked
the output state automatically resets at 0 rpm. The default is checked (ON).
PIN 8 - SPEED SWITCH OUTPUT (SSW)
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Setting variable speed requires a potentiometer, available from GAC.
A potentiometer calibration within the GACong Tool characterizes the
selected potentiometer.
Analog variable speed is enabled when Pins 5 and 6 are not grounded.
To add a potentiometer:
1. Connect either a 5 kΩ potentiometer, 0 - 5 V DC or 4 - 20 mA
speed input signal to Pin 9.
2. Set the Variable Speed Input Mode in the GACong Tool to 0 - 5 V
DC or 4 - 20 mA.
3. To calibrate the potentiometer:
a. Open Engine Tuning Variable Speed.
b. Set the potentiometer to the full CCW position and click
Calibrate Minimum.
c. Turn the potentiometer CW all the way and click Calibrate
Maximum.
d. Note the Input Actual result
Variable Speed can be used as another xed speed setting if both
Speed Minimum and Speed Maximum parameters are set to the same
rpm and no potentiometer is connected.
For more details on setting variable speed or installing a potentiometer
see Section 10, Setting Variable Speed Parameters.
0 - 5 V DC or 4 - 20 mA Signal 5 kΩPotentiometer
PIN 9 - ANALOG VARIABLE SPEED
• The CAN bus must be terminated at both ends by a 120 k Ω
resistor.
• Use cable harness CH1520, 7 AWG, or EC1502 mating con-
nector kit with twisted pair that meets SAE J1939 or SAE J1128
standards.
PINS 13 AND 14 - CAN H AND CAN L OR RS-232
The CAN output supports J1939 protocol for basic engine speed and Diagnostic Trouble Codes (DTCs). Supported diagnostic trou-
ble codes (DTCs) are detailed in J1939 CAN Settings and Diagnostics in this manual.
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Enhanced Electronic Governor EEG7000 with GACong Tool 8-2021-D6 PIB1009
7onfig
INSTALLING GAC TOOL AND CONNECTING TO EEG7000
The EEG7000 speed controller uses the GACong Tool to update parameter values on the EEG7000, adjust performance settings for
the engine and view engine information. This PC tool uses a menu-driven user-friendly interface for conguration, tuning, and trouble-
shooting. The tool also allows you to set up multiple scenarios and save them for use later or to import and export settings to share
with other EEG7000 users.
The GACong Tool is downloaded from GAC’s website. A PC with at least Windows 7, one USB port and an internet connection is
required. A 14 pin connector (GAC EC1502) or cable harness assembly (CH1520) is also required.
Older EEG7000 controller hardware may have rmware that is not able to fully utilize the GACong Tool features.
1. Download the EEG7000 GACong Tool from the GAC Software Download
page. Depending on your workplace the download installer may request
additional information. After the software is installed the PC must be re-
started.
2. The download le is saved in the PCs default download folder area, unless
you tell it otherwise. Once downloaded, double-click the le name to start
the installation. If you have any issues installing the le please cal your
GAC representative. The default installation is in the Program Files (x86) /
Governors America Corporation le area.
3. The GACong Setup screen displays. Click Install. The Installing GACon-
g screen displays, showing a progress bar.
4. Click Finish when complete. The GACong icon is placed
on the desktop. On rst use a prompt will ask you to select a a
device. Select EEG7000 from the drop-down list.
5. Connect the EEG7000 to the PC using a USB-A port and connect the
USB-B port on the EEG7000. Power for the controller comes from the
engine battery. A green LED displays on the EEG7000 when power is
successful.
6. Do not start the engine.
7. Double-click the GACong Tool icon on your desktop.
8. Connect the GACong Tool to the EEG7000 by clicking the Connect icon
on the top left of the GACong window.
9. A pop-up dialogue window displays a drop-
down list of available serial port connections.
Select the appropriate port and click OK. If you
are unsure of the port, use the Windows Device
manager to locate what device is plugged in to
which USB port.
10. The Connection Status indicator on the
lower left corner of GACong Tool ashes yellow then turns green as
the connection is completed. The status bar displays Connected. If the
connection does not complete, a red Disconnected message displays.
Check your connections and note any error messages on the PC and try
again.
If you already have the GACong Tool software on your system, an automatic
upgrade with the latest version will be offered. It is always good practice to save
your settings.
INSTALLING AN UPDATE
NOTENOTE
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EEG7000 speed controller uses the GACong Tool to set parameters on the EEG7000, adjust performance settings, and view results.
Parameters are grouped by functionality at the Main menu. Parameters are grouped by functionality at the Main menu. Initial setup is
completed from Engine Tuning on the main menu.
Tool bar
Main menu is
arranged by
function
Connection status
shows the GACong
Tool connection sta-
tus to the EEG7000
Current Engine status
and EEG7000 set-
tings are displayed in
real-time.
Click STOP to disen-
gage the engine from
the EEG7000 and set
actuator engine speed to
0 rpm.
• Update parameter values by selecting the underline or existing value next to a parameter name. Type in the new value and press
Enter to save the change. A green checkmark next to the change indicates the change was successful. No check or a red or yellow
warning icon indicates the change was not saved or caused a conict with another setting.
• For a short description of a parameter, hover the cursor over the parameter name and a description briey displays, or reference the
item in the Quick Conguration menu where a short description is available in its associated menu tab.
• Errors and parameter information display when you change a value. Read all RED warning boxes error information, yellow
cautions, and other pop-up information. Setting some parameter values impact other parameter values, often displaying a caution.
• The GACong Tool windows automatically sizes the display to t the window size.
• While using the tool, note the far right screen engine status bar, showing Engine Status information.
• Selecting sets the engine speed to 0 rpm and shuts down the EEG7000 controller. It does not shut down the engine directly.
The Main menu is divided by function. The Dashboard and Engine Status as well as the right hand Engine Status panel show the engine
status. The menus are:
• The Dashboard provides a quick view of the actual and desired engine speed as well as current, Mag pickup frequency, Actuator
duty cycle and battery voltage. A STOP button allows to you quickly shut down the actuator on the engine.
Engine Tuning includes basic setup of initial and system safety settings including control mode (based on actuator type) over-
speed, ywheel, fuel settings and acceleration rates. Engine Tuning also includes xed speed settings, PID (Gain, Stability, Dead-
time) tuning, Variable Speed setup. A fuel limiting table can also be built here.
include the communication, auxiliary settings, droop, speed trim, speed switches, J1939, and system
information and settings.
• The menu lets you update settings from one location.
From the initial screen you can also:
• Connect to your device
• Reset all settings
• Export and import settings
• See setting history
• Create a data plot
MAIN MENU
STOP
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8onfig
ADVANCED CONFIGURATION
The Advanced Conguration menu lets you set:
• Communication mode to either CAN or RS232
• Speed Switch output conguration
• AUX input access conguration
• Droop
• Set J1939 information and base settings
• System information
ENGINE TUNING
Engine Tuning is the basic menu used to store
your engine startup and tuning information.
• Flywheel teeth, overspeed, fuel limit
• Start fuel rate, Fuel ramp rate, starter cutoff,
acceleration and deceleration
• Fixed speeds
• Variable speed settings
• Tuning (Gain, Stability, Deadtime)
• Lead Circuit, Light Force Governing, Speed
Anticipation
QUICK CONFIGURATION
The Quick Conguration menu includes all the parameter settings for the EEG7000 available in the GACong Tool. This menu
allows you to set all the parameters from one place.
Parameters are on the following tabs:
• Tuning
• J1939
• Run Time Meters
• Speed Switches
• Actions
• Information
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Wiring between the engine, the EEG7000 controller, and the actuator should be completed before starting the engine. See Sections 5
and 6 for more wiring details. The following are the minimum wiring requirements:
• Connect Actuator to EEG7000 (Pins A and B)
• Connect Actuator to magnetic pickups (Pins 1 and 2)
• Connect EEG7000 to battery (Pins C and D)
• Connect USB from EEG7000 to PC
The EEG7000 can be set up and used straight 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 EEG7000 is required, and reviewing this
document and default settings is advised.
There are two sets of parameters to work with: basic engine performance and engine tuning. Getting Started gets your engine started.
Engine Tuning improves performance.
Before you start your engine:
• Install the GACong Tool on a PC and connect the PC to the EEG7000 with the USB cable.
• Provide power to the EEG7000 from the battery.
• Install an actuator between EEG7000 and engine, following your actuators installation manual.
• Set the following minimum settings in the GACong Tool on the Engine Tuning menu:
• Overspeed for automatic actuator shutdown
• Number of engine ywheel teeth
• Fuel Limit
• Acceleration and Deceleration
• Actuator Ramp Rate
• Starter Cutoff
• Fixed Speed Settings
FIXED SPEED SETTINGS
PARAMETER RANGE DEFAULT DEFINITION
Speed 1 0 - 6000 1500 Selects one of three xed speeds
(rpm).
Speed 2 and 3 150 - 6000 1500
Gain 1, 2, and 3 1 - 100 50 Set one Gain value for each xed
speed.
At the GACong Tool:
1. At the Main menu select Engine Tuning.
2. Note if the Flywheel Teeth value is correct for you engine. If not, click the value to
change it.
3. Enter values for all the all System Setup and Start-Up parameters.
4. Set the Fixed Speed values for Speed 1, Speed 2, and Speed 3.
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INITIAL WIRING
BASIC GACONFIG TOOL SETTINGS
Further descriptions on these and all parameters are in GAConfig TOOL - SETTING ALL PARAMETERS
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Once the parameter settings are reviewed and values updated as required, reconnect your fuel supply and start your engine.
1. Reconnect the fuel supply.
2. Crank the engine with DC power applied to the governor system. The engine should be at operating speed with no load.
3. The actuator/ fuel to the engine will be positioned to the level set by the Actuator Start Fuel (default is maximum fuel). Actuator Ramp
Rate controls the rate at which fuel is increased to start the engine, 10 % by default.
4. If the engine is unstable after starting, open the GACong Tool and adjust the Gain, Stability, and Deadtime in the Engine Tuning
Tuning block, until the engine is relatively stable.
5. Once the engine is stable you can connect additional devices and further tune your engine.
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.
The STOP - Engine Shutdown button shuts down the controller and actuator, not the engine. STOP shuts
down the voltage to the controller; which disables the PWM output to the actuator; shutting down the engine.
START YOUR ENGINE
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To improve basic performance, with no load applied to the engine, complete the following:
1. At the GACong Tool open the Engine Tuning Tuning and set the following:
a. Increase the Gain by entering new value until instability develops. Gradually decrease the Gain until stability returns. Decrease
the adjustment one count further to ensure stable performance.
b. Increase Stability value until instability develops. Gradually decrease Stability value until stability returns. Decrease the value by
one to ensure it is stable. If there is no instability leave set at 50.
c. Set the DEADTIME to Low. If instability develops, change to High.
Once the engine is running at operating speed, with no load, use the GACong Tool to adjust
the parameter values to increase engine stability. Each speed parameter (Speed 1, 2, 3) has
its own Gain parameter (Gain 1, 2, 3) setting. The speed selection number and active Gain are
shown in Tuning.
Stability is achieved by balancing PID: Gain, Stability, and Deadtime.
Gain (Proportional) changes the initial response of the speed controller. Increasing gain
makes the engine more responsive to load changes while decreasing gain makes it less
responsive to load changes. Avoid engine instability due to high gain when adjusting this
parameter. Each xed speed has a gain value associated with it.
Stability (Integral) changes the steady state response of the engine. Increasing stability
allows the system to come to steady state speed faster, while decreasing the stability
results in a more gradual transition to steady state speed.
Deadtime (Derivative) sets the transient response of the engine to high or low and affects
stability during transient load changes. Increasing deadtime decreases the percent of
overshoot and settling time during a transient load change while decreasing deadtime
increases them. Setting Deadtime to High can cause random speed instability during steady state since small speed errors
Additional adjustments may be required after engine load is applied. Normally, adjustments made at no load achieve
satisfactory performance.
Lead Circuit, Light Force Governing and Speed Anticipation are further described in Section 16, Additional EEG7000
Capabilities.
NOTE
ADJUSTING BASIC STABILITY WITH FIXED SPEED
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Variable speed parameters activate throttle or fuel control relative to the variable speed input signal. This requires a single remote
speed adjustment potentiometer is installed to adjust the engine speed continuously over a specic speed range. At the Variable
Speed Voltage Speed Input Mode:
• Voltage Input: (Select 0 - 5 V / Resistive) Voltage to 5.0 V, above 5.0 V the variable speed function is clamped at 100 %, rpm
response to voltage is linear.
• Current Input: (Select 4 - 20 mA) Speed Minimum sets the low speed at 4 mA. Speed Maximum sets the high speed at 20 mA. If
the input current drops below 4 mA, variable speed is clamped at 0 %. If the input current level exceeds 20 mA, variable speed is
clamped at 100 %. The rpm response to current is linear.
VARIABLE SPEED PARAMETERS
PARAMETER RANGE DEFAULT DEFINITION
Variable Speed Input
Mode 0 - 5 V DC or 4 - 20 mA 0 - 5 V DC Sets the variable speed input for the analog device.
Speed Minimum 150 - 6000 rpm 1500 Minimum speed setting
Variable Speed Start Gain 1 - 100 50 Gain to use when at the minimum speed while in variable speed.
Speed Maximum 150 - 6000 rpm 1500 Maximum speed setting.
Variable Speed End Gain 1 - 100 50 Gain to use when at the maximum speed while in variable speed.
Input Minimum
(Calibrate button) 0 - 75 % 0*
Sets the range for the minimum variable speed. Range: 0 to 75 % and must
be 25 % apart from end position. Calibrate automatically by clicking Calibrate
Minimum.
Input Maximum
(Calibrate button) 25 - 100 % 100*
Sets the range for the maximum variable speed. Range: 25 to 100 % and must
be 25 % apart from start position. Calibrate automatically by clicking Calibrate
Maximum.
Input Actual 0 - 100 % 100 Status of the current variable speed input position.
*% rpm
Variable speed (rpm) based on current input or voltage expected results are shown here. Note the following:
• If the Minimum Speed setting is higher than Maximum Speed, increasing the speed input signal / potentiometer position will de-
crease rpm.
• Minimum Speed and Maximum Speed setting ranges are 150 to 6000 rpm with default value of 1500 rpm.
• Gain, Stability, and Deadtime values may need adjustment after engine load is applied.
• Normally adjustments made at no load achieve satisfactory performance.
• If further performance improvements are required, see Section 17, Troubleshooting, in this guide.
VARIABLE SPEED DETAILS
0 - 5 V DC Input To Pin 9 4 - 20 mA Input To Pin 9
Conversion Formulas:
HertzMAG PICKUP = (rpm x #Teeth)
60
rpm = (HertzMAG PICKUP x 60)
#Teeth
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1. Review the Engine information block on the far right of the GACong Tool
screen to make sure Selected Speed Mode displays as Variable. Variable
Speed is set when Pins 5 and 6 are not grounded and a 5 kΩ potentiometer
is available from Pin 9. See wiring table and diagram starting in Section 5 for
details on EEG7000 and potentiometer wiring.
2. Open the GACong Tool.
3. At the Engine Tuning menu, in the Variable Speed box, select the Variable
Speed Input Mode from the dropdown menu (voltage or current input) that
corresponds to your actuators input signal.
4. Set the potentiometer in the full counter-clockwise position.
5. Set Speed Minimum.
6. Set Variable Speed Start Gain to optimize minimum gain.
7. Set Variable Position Input Minimum and Input Maximum by either manually
adding settings or use the automatic calibration buttons.
a. To set calibration automatically:
• Turn potentiometer fully CCW and click Calibrate Minimum.
• Turn potentiometer fully CW and click Calibrate Maximum.
b. To set each manually:
• Set Input Minimum to between 0 to 75 %
• Set Input Maximum to at least 25 % greater than the Minimum value.
Values entered which are not 25 % different are automatically reset to the
closest accepted value by the GACong Tool.
NOTE: The tool will reset any values that are not 25 % apart to the closest
valid number.
3. Set the potentiometer in the full clockwise position.
4. Set the Speed Maximum.
5. Set Variable Speed End Gain to optimize maximum gain.
6. To maintain engine stability at the minimum speed setting, add a small
amount of droop using Droop in the GACong Tool Advanced Conguration
menu. At the maximum speed setting performance will be near isochronous,
regardless of the droop adjustment setting.
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SETTING VARIABLE SPEED
If minimum speed is higher than maximum speed increasing the speed input signal position will decrease the rpm.
NOTE
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Droop adjustments are made while the engine is running. Setting droop reduces
the speed as fuel position (load) increases.
To maintain engine stability, at the minimum speed setting, add a small amount of
droop. At maximum speed performance will be near isochronous regardless of the
droop adjustment setting.
1. Open the GACong Tool on your PC. From the Main menu, select Engine
Tuning and locate the Tuning pane.
2. Check that Lead Circuit is deselected. The default is selected.
3. From the main menu select Advanced Conguration settings and locate the
Droop box.
4. Set No Load Current to the measured / displayed current value when operat-
ing at no load rated speed (default value is 0.5 A).
5. Set Full Load Current to the measured / displayed current value when operat-
ing at full load rated speed (default value is 6.0 A).
6. Set Droop to the desired settings for each of the three xed speeds and one
variable speed as needed.
The No Load Current value must be set to less than Full Load Current and the difference between the two
must be at least 0.5 A.
If an invalid combination is entered a warning message displays and the default to 0.5 A and 6.0 A.
Speed Switch (SSW) Output receives information from sensors for low and high
speed settings as well as other speed parameters when using a speed switch in
your solution. This outputs a signal when the governor is governing at or above
the specied limit.
The SSW parameters adjust between 100 to 6000 rpm. The default value is 1800
rpm and the default state is Normally Open.
1. From the GACong Tool Main menu, select Speed Switches and navigate to
the Speed Switch Output box.
2. At Limit / Threshold set the rpm limit for speed switch 1 output.
3. From Mode, select one of the following from the drop down menu:
• Normally Open output from Pin 8 energizes at the set rpm.
• Normally Closed output from Pin 8 de-energizes at set rpm.
4. Select the Latching checkbox on the Speed Switch (SSW) Output pane to set
the SSW output state to xed until power to the EEG7000 is cycled. When the
box is not checked the output state automatically resets to the SSW Limit rpm
to 0 without a system reset.
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NOTE
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1. In the GACong Tool tool bar, select Data Plot.
2. Set the Time Range (in seconds).
3. Click Start. The data displays similar to shown below. Note the
time and rpm display when you move your cursor over the green
timeline.
4. To save the data, click Save. The le is saved as a printable
graphic (portable network graphic (.png)) le.
Data Plot displays real-time engine data with rpm and actuator duty cycle versus time. The cursor aligns the engine speed and duty
cycle plots to display a time relationship.
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QUICK CONFIGURATION - Engine Tuning
System Status - Engine and Actuator - Displays current status similar to Dashboard
Magnetic Pickup Frequency Display only Hz Current engine speed
Actual Engine Speed Display only rpm Current engine speed
Desired Engine Speed Display only rpm Set governing speed
Operator Requested Speed Display only rpm Requested governing speed
Selected Speed Mode Display only Speed 1, 2, 3, Variable
Actuator Duty Cycle Display only % Actuator duty cycle
Actuator Current Display only A Current draw of actuator
PARAMETER MIN - MAX DEFAULT NOTES
System Setup
Flywheel Teeth 60 - 250 120 Number of teeth on the ywheel. The system can govern up to 12000 Hz.
Overspeed 150 - 6000* 1800 Set rpm to cause automatic actuator shut down. Set value low enough to prevent
mechanical damage but high enough to allow realistic load rejection speeds without
stopping engine. Begin by setting at no more than 25 % above rated speed.
Fuel Limit 0 - 100 % 100 Maximum fuel (actuator duty cycle) allowed during governing. Prevents over fueling
after engine has started. During normal starting cycles and short load step the function
will not engage since there is a 1 second delay.
Start-Up / Ramp Control
Actuator Start Fuel 0 - 100 % 100 Actuator start point during cranking.
Actuator Ramp Rate 1 - 100 %/s 10 Fuel (actuator duty cycle) ramp rate during cranking.
Starter Cutoff 100 - 1000 rpm 400 Crank termination speed in rpm.
Acceleration 25 - 2000 rpm/s 300 Controls rate of acceleration in engine speed. A lower value rpm/s allows for a gradual
increase in engine speed while a larger value of rpm/s provides faster acceleration
Deceleration 25 - 2000 rpm/s 300 Controls rate of deceleration in engine speed. Lower rpm/s allows gradual decrease in
response to engine speed while higher rpm/s create more rapid deceleration.
Fixed Speed
Speed 1
Speed 2, 3
0 - 6000*
150 - 6000*
1500
1500
Set engine speeds.
Variable Speed
Variable Speed Input Mode 4 - 20 mA or
0 - 5 V DC
0 - 5 V DC Sets variable speed input signal to 0 - 5 V DC or 4 - 20 mA
Speed Minimum
Speed Maximum
150 - 6000*
150 - 6000*
1500
1500
Minimum and maximum speed settings.
Variable Speed Start Gain
Variable Speed End Gain
1 - 100
0 - 100
50
50
Gain used when at the minimum speed while in variable speed.
Gain used when at the maximum speed while in variable speed.
Input Minimum 0 - 75 % 0 Sets variable input start position based on current value. Range: 0 to 75 % and must be
25 % apart from end position. Use the Calibrate button to set automatically.
Input Maximum 25 - 100 % 100 Sets variable end position based on the current value. Range: 0 to 75 % and must be
25 % apart from end position. Use the Calibrate button to set automatically.
Tuning
Gain 1, 2, 3 (P) 1 - 100 50 Gain determines how fast the controller responds to transient load changes or when a
load disturbance occurs. Applicable to related Speed 1, 2, or 3.
Stability (I) 0 - 100 50 Stability changes steady state response of the engine. Increasing stability brings the
system to steady state faster and decreasing causes a gradual transition.
Deadtime (D) Low - High High Deadtime
Lead Circuit Select -
Deselect
Select Lead Circuit increases the range of Gain adjustment increasing the responsiveness of
the governor. Select Lead Circuit if slow or moderate hunting and higher Gain.
Light Force Governing Select -
Deselect
Deselect Light Force Governor improves performance when controlling small or low current actu-
ators (GAC T1 ATB, ALR/ALN, 100/103/104 series and normally closed actuators).
Speed Anticipation Select -
Deselect
Deselect Speed anticipation reduces rpm recovery time during high load transients and requires
both no load (NLCU) and full load current (FLCU) values are entered.
GAConfig
The menu gives you access to all the parameters from one menu location. Parameters are grouped by function
and relate directly to the GACong Tool groups on other tabs. The menu does not display you all the error messages the core menus
do. Parameter values may be updated by the software if they interfere with other parameters.
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GAConfig
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PARAMETER MIN - MAX DEFAULT NOTES
Communication Mode CAN or RS232 Sets the controller to use CAN or RS-232 communication.
SSW Limit 100 - 6000 rpm 1800 Speed limit for speed switch 1 output.
Latching Select -
Deselect
Select Selecting Latching sets the output state ON until power is cycled. With the Latch setting
deselected, the output state of the pin automatically resets at 0 rpm.
SSW Mode Normally Open,
Normally Closed
Normally
Open
Mode sets the output polarity at either normally open or normally closed.
Aux / Load Sharing
Auxiliary Enable Select - Deselect Deselect Selects if the auxiliary / load sharing function is used.
Auxiliary Polarity Decreasing Speed,
Increasing Speed
Decreasing
Speed
Auxiliary Polarity either increases speed with increased voltage or decreases speed with
increased voltage. Auxiliary Polarity is nominally 5.0 V +/- 5.0 V DC.
Droop
No Load Current 0 - 5.5 A 0.5 A Actuator current at rated speed, no load.
Full Load Current 0.5 - 6.0 A 6.0 A Actuator current at rated speed, full load.
Fixed Speed 1, 2, 3,
Droop
0 - 25 % 0 Percent of droop (% rpm decrease at full load) to incorporate while in xed speed select
1, 2, or 3.
Variable Speed Droop 0 - 25 % 0 Percent of droop (% rpm decrease at full load) to incorporate while in variable speed
mode.
J1939 Address 0 - 253 0 Sets the CAN address for J1939 communication
Engine Requested
Torque / Speed
0 - 6000 rpm 1500 The value the controller is being requested to govern at through the J1939 TSC1 com-
mand
Engine Override
Control Mode
Disabled-Enabled Disabled Currently unavailable. Will control PGN0 SPN695 Current Torque/Speed Control 1 - En-
gine Override Control Mode.
Speed Ramping Select - Deselect Deselect Current TSC1 speed command limit
J1939 Diagnostic
Messages (DM)
--- --- DM1 and DM2 status and reset
System & Status Information - Run Time Meters
Engine Runtime h Hours
Service Timer Enable Disabled-Enabled Disabled Controls the service timer. *Transitioning from disabled to enabled automatically sets the
service timer to +500 hours
Current Service
Hours
1 - 2000 500 Setting service hours sets the hour meter for an alert at the selected service interval. If
the service time is expired, the displayed number will be ‘0’ or negative.
Reset Service Hours 1 - 2000 500 When the service timer is enabled, resets the service counter to this value
Engine Runtime 0 - 65535.9 Current runtime hours
System Commands
System Reset -- Performs a software reset of the system. Engine speed must be 0.
Engine Shutdown Button Software commanded engine shutdown.
Factory Restore Button Restores GAC factory default settings to GACong Tool and the EEG7000 controller. It
does not reset to OEM default settings.
Battery Voltage Current battery reading.
Fault Information
System Conguration
Information
Hardware and software information for EEG7000 and GACong Tool
Items in Gray are display only.
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PARAMETER VALUE DEFAULT
Mode CAN or RS232 CAN
Address 0 - 253 0
Engine Override Control Mode Enabled Enabled
Speed Ramping Select - Deselect Select
J1939 CONFIGURATION
Use the GACong Tool to set the J1939 parameters.
1. At the GACong Tool Advanced Conguration I/O Conguration, Se-
lect CAN from the Communication Mode dropdown menu.
2. Review the SAE J1939 Conguration settings and update to match your
needs. You will need to map the J1939 address you are using and select
Speed Ramping as required.
3. Click the DM3 - Reset Logged Faults button to clear current faults as appli-
cable.
The EEG7000 is J1939 compatible. After initial conguration the CAN data is available on the J1939 Diagnostics Messages view on
the GACong Tool, or using a compatible controller. Sample PGN transmit and receive codes are shown in this section. This docu-
ment is not intended to describe how to communicate with this controller over SAE J1939.
CREATING J1939 MESSAGING
J1939 messaging between the EEG7000 and the J1939 source is congured using these basics rules.
• J1939 indexing starts at 1, not 0.
• Timeout rate is 2x transmission rate. Transmission rate is congured using SPN3349 (PGN65251), part of the TSC1 message.
Timeout rate defaults at the 5th byte (0xFE to 40 ms). Other values including SPN3344 can be used to set longer timeouts.
• Speed Ramping is used under one of two conditions:
• When not under TSC1 control
• When under TSC1 control and CAN Speed Ramp Enable is set
• The following lists supported PGNs.
If signal is lost to J1939 the EEG7000 reverts to hardwired xed speed settings (idle).
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SYSTEM FAULTS / J1939 DTC’S
FAULT
CODE
CONDITION J1939 SPN J1939 FMI J1939 LAMP / LED
DISPLAY
ACTION
1 Actuator Overcurrent 638 (Actuator) Current High (6) Protect / Blinking Red Shutdown, retry 30
seconds
2 Loss of Speed Sensor 636 (Speed Sensor) Abnormal Signal (8) Stop / Shutdown Shutdown
3 Overspeed 190 (Engine Speed) Data Above Range (0) Stop / Shutdown Shutdown
4 User Shutdown 1110 (Eng. Shutdown) Data Incorrect (2) Stop / Shutdown Shutdown
241 EEPROM Read 628 (CPU / Memory) Out of Calibration (13) Warning / Solid Yellow None
285 TSC1 Unsupported Mode 695 (Override mode) Data Incorrect (2) Warning / Solid Yellow Revert to selected speed
286 TSC1 Message Rate Error 3349 (Message Rate) Data Incorrect (2) Warning / Solid Yellow Revert to selected speed
287 TSC1 Message Count Error 4206 (Message Counter) Data Incorrect (2) Warning / Solid Yellow Revert to selected speed
288 TSC1 Speed Request Invalid 898 (Requested Speed) Data Incorrect (2) Warning / Solid Yellow Revert to selected speed
289 TSC1 Invalid Checksum 4207 (Checksum) Data Incorrect (2) Warning / Solid Yellow Revert to selected speed
290 TSC1 Destination Address 1483 (Source Address) Data Incorrect (2) Warning / Solid Yellow Revert to selected speed
305 Service Due 916 (Service Delay) Data Incorrect (2) Protect / Solid Yellow None
SAE J1939 CAN INFO / DIAGNOSTIC TROUBLESHOOTING CODES (DTC)
15
PGN NAME VALID SPN’s NOTES
0Torque / Speed
Control 1 (TSC1)
SPN695 - Engine Override Control Mode
SPN898 - Engine Requested Speed / Speed Limit
SPN3349 - TSC1 Transmission Rate
SPN4206 - Message Counter
SPN4207 - Message Checksum
Engine Override mode is not currently supported
(SPN695) system governs at selected speed.
After inactivity of 2x transmission rate
(SPN3349) the system reverts to governing at
the selected speed.
59904 PGN Request PGN65227 - DM2 (Previously Active Faults) Request
PGN65228 - DM3 (Clear Previously Active Faults) Request
DATA RECEIVED ON J1939 BUS
PGN NAME TRANSMIT
RATE VALID SPN’s NOTES
61444 Electronic Engine Control 1 (EEC1) 20 ms SPN190 - Engine Speed rpm
61443 Electronic Engine Control 2 (EEC2) 50 ms
SPN1 - Accelerator Pedal Position 1 (%)
SPN2 - Percent Load at Current Speed
(%)
SPN91 is sourced from the variable
speed input position.
SPN92 is calculated based on no
load (NLCU) and full load (FLCU)
parameters
64914 Engine Operating Information (EOI) 250 ms SPN3543 - Engine Operating State
SPN3607 - Engine Emergency Shutdown
65252 Shutdown (SHUTDN) 1000 ms SPN2814 - Engine Alarm Output
SPN1110 - Engine Protection Shutdown
Any system or shutdown condition
65271 Vehicle Engine Power (VEP) 1000 ms SPN158 - Battery Potential (Voltage),
Switched (V DC)
65253 Engine Hours, Revolutions (HOURS) 1000 ms SPN247 - Total Engine Hours
65216 Service Information (SERV) 1000 ms SPN916 - Service Delay (Hours) If the service timer is disabled,
SERV will read 0 hours.
65226 Diagnostic Message 1 (DM1) 1000 ms Active diagnostic troubleshooting
codes.
65227 Diagnostic Message 2 (DM2) On Request Previously active diagnostic trouble-
shooting codes.
DATA TRANSMITTED ON J1939 BUS
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Light Force Governing provides ner adjustment resolution for smaller actuators. It is designed to work with low current small actuators,
like T1 ATB, ALR/ALN, 100/103/104 series and normally closed Cummins EFC actuators. Select Light Force Governing from the Engine
Tuning Tuning menu when using small actuators to improve adjustments as they respond very quickly to input changes over a smaller
range of operating current, using a fraction of the PID and current output of a normal actuator.
Lead Circuit (default is ON) enables the speed controller to be more responsive and typically increases the range of gain adjustment.
This function allows for more active control to increase the performance in typically slow engines.
Idle is set with Speed 1 of the speed control settings on the Engine Tuning menu.
Smoke Reduction is an adjustment made using the Start Fuel parameter in the Engine Tuning menu. This sets the actuator % applied
during crank in order to start easily but not too high to reduce black smoke.
Auxiliary Enable enables connections to synchronizing and load sharing equipment. This allows the adjustment of the speed requests
through the auxiliary input voltage, accepting a 1 - 9 V DC signal, biased at 5 V, and selectable response polarity. In response the
EEG7000 will increase or decrease voltage but does not change engine speed.
CAN J1939 bus device communication is supported to receive and display J1939 messages.
IMPORTING, EXPORTING, AND RESTORING SETTINGS
The EEG7000 offers a number of GAC specic capabilities as well as helpful tools.
The GACong Tool allows settings in the tool to be stored, shared,
and imported back into the tool for use on multiple EEG7000 con-
trollers. Export settings at any time while using the GACong Tool.
:
1. EEG7000 must be powered on and connected to the GACong Tool.
2. At the Tool bar click the Export button. The Save as dialog allows you to select the location you want to save the le.
:
1. EEG7000 must be turned on and connected to the GACong Tool.
2. At the Tool bar click the Import button. The Save as dialog allows you to select the location you want to save the le.
Best practice is to export engine settings information once the engine performs as desired. Name the le using dates and intended use
as part of the le name. These les are helpful when shared with the GAC support team to aid further enhancing your settings.
To restore the original GAC factory settings:
1. Shut the engine off. Factory restore can be done when the engine is off but the GACong Tool is running.
2. Access the Quick Conguration Advanced Conguration System Commands menu.
3. Click Factory Restore to set the EEG7000 to its factory settings. GAC factory settings are not the same settings used on an OEM
version of the EEG7000.
4. To reset just the software settings, click System Reset.
Parameter settings can be created before connecting to the engine and uploaded once the connection is made. The EEG7000 must be
connected to power and the PC.
1. Click the Connect button on the Main menu. The Import Conguration menu displays asking if you want to import the settings you
have recently created.
2. Click Import to update the EEG7000. The progress bar displays. If the controller is not ready or not connected they system displays
an error message.
OFFLINE SET UP MODE
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