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EEG7500 Enhanced Electric Governor 8-2021-A8 PIB5115
PoSSIBLe ISSUe
LocaTIon
normaL reaDInG
ProBaBLe caUSe
EEG not starting
VOLTAGE Tests
BATT
C(-) and D(+)
Battery Supply Voltage
(12 or 24 V DC)
1. DC battery power not connected.
2. Check for blown fuse
3.
Low battery voltage
4.
Wiring error
Positive (+) and negative
(-) refer to meter polarity.
Should normal values be in-
dicated during troubleshoot-
ing steps, then the fault may
be with the actuator or the
wiring to the actuator.
Tests are performed with
battery power on and the
engine off, except where
noted.
SPD
1 and 2
1.0 V AC RMS min while
cranking
1. Gap between speed sensor and gear teeth too great
2. Check Gap
3.
Improper or defective wiring to the speed sensor
4. Resistance between 1 and 2 should be 300 to 1200 Ω. See your
specific mag pickup data for resistance. Defective speed sensor.
Actuator and Battery
B(-) and D(+)
1.0 - 2.0 V DC while
cranking
1.
Check if SPEED parameter set too low
2. Short/open in actuator wiring
3. Possible defective controller or defective actuator.
See your
actuator publication for testing procedure on the actuator.
Controller not responding
Engine Shutdown
Pane
Fault Last: Not Set
If Fault Last is Error_OS or Error_System, power cycle the GAConfig
Tool
1.
At Quick Configuration menu, select Status/System Information
tab.
2.
If not already stopped, at bottom of view, click Engine Shutdown
then click System Reset.
3.
Check for power for the EEG7500 from the engine battery.
InSTaBILITY
SYmPTom
ProBaBLe caUSe of aBnormaL reaDInG
Fast Periodic
The engine seems to jitter with a 3 Hz
or faster irregularity of speed.
1.
2.
Readjust the Gain and Stability for optimum control.
Turn Lead circuit OFF. Readjust the Gain and Stability on the Engine Tuning
menu. In extreme cases, change
.
Slow Periodic
An irregularity of speed below 3 Hz.
(Sometimes severe)
1.
2.
3.
Re-adjust Gain, Stability, and Deadtime
Check fuel system linkage during engine operation for:
a. binding
b. high friction
c. poor linkage
Non-Periodic
Erratic Engine Behavior
1.
Increasing the Gain parameter should reduce the instability but not totally
correct it.
If this is the case, there is most likely a problem with the engine itself.
Check for:
a. engine mis-firings
b. an erratic fuel system
c. load changes on the generator set voltage regulator.
SYSTEM TROUBlEShOOTING
20
If the GAConfig Tool is not connecting check the following on your PC-Laptop:
1.
Open the GAConfig Tool.
2.
Click Connect. The Select Serial Port window displays. Click Advanced Configuration arrow.
3.
Select the number of the com port the EEG7000 is plugged into. If no com ports display call your GAC
representative.
4. Check to make sure your baud rate is set to 19200 and all other settings are as show in this example.
5. If you made changes reboot the machine and try again.
6. If reboot does not see the EEG7000 please call your GAC representative.
SYSTem InoPeraTIve
InSTaBILITY
GaconfIG TooL noT connecTInG
