Kohler Decision-Maker 6000 User Manual

211Section 10 Governor AdjustmentsTP-6356 4/12
10.10Diagnostics and
Troubleshooting
(Digital Isochronous Governor
Programming Kit GM39344)
10.10.1 Introduction
Use the troubleshooting chart to help diagnose
generator set/engine problems relating to the governor
controller.
10.10.2 Display Codes
(Load Share Model)
Code Fault
E0 Controller memory failure. Replace governor controller.
E1 Loss of remote speed potentiometer signal.
E2 Overspeed detected. Governor controller must be
turned off and reset to allow an engine restart.
E3 Actuator drive overcurrent detected. Check wiring.
Check actuator loading and linkage.
10.10.3 LED Indications
(Non-Load Share Model)
LED State Fault
Off Governor controller is either not currently
powered or is being reverse powered. (Check
polarity of supplied power.) If correctly powered,
governor controller is malfunctioning.
Blinking Slow
(1/2 Hz)
Governor controller is powered, but not sensing a
speed signal. OK if engine is not running. If the
engine is running, this indicates a fault with the
speed signal.
Blinking Fast
(1 1/2 Hz)
Governor controller is powered and an engine
speed signal is being detected. If the engine is
not running, this indicates electrical noise on the
speed signal wires.
ON and Not
Blinking
Governor controller is powered and is
malfunctioning. Replace governor controller.
10.10.4 Troubleshooting Chart
Symptom Possible Cause Remedy
LED display does
not light up when
the governor
controller is
powered
BAT+ and BAT-- leads are reversed. Check and correct wiring.
Battery voltage is too low. Governor controller supply
voltage should be 9--30 VDC.
Charge or replace the battery.
Governor controller is defective. Replace governor controller.
Unable to modify
parameters
The parameter’s value is the maximum value allowed. Enter acceptable value.
The parameter’s value is the minimum value allowed. Enter acceptable value.
A display code is active (load share model). Refer to Section 10.10.2, Display Codes.
Password protection is enabled (load share model). Enter Password.
PST not communicating with the controller (non-load
share model).
Check cable connection.
Keypad is defective. Replace governor controller.
Engine does not
start
Actuator leads not connected or shorted. Check and correct actuator wiring.
No fuel source. Check fuel supply, fuel line, and shutoff valves.
Battery voltage is low. Charge or replace the battery.
Set speed is lower than crank speed. Increase the set speed value.
Startup rate setting is too low. The target speed ramps
up too slow.
Increase the startup rate value.
Startup limit is too low, limiting the actuator drive signal
too much.
Increase the startup limit value.
No magnetic pickup (MPU) speed signal present.
Magnetic pickup should be 2.0 VRMS minimum.
Adjust the MPU gap. Try reversing the MPU leads; otherwise,
replace the MPU.
If a speed signal is present, measure the actuator
output duty cycle.
If not greater than 5%, restore all parameter values to factory
default settings and crank the engine again.
Final target speed must be greater than crank speed
before the governor will attempt to drive the actuator
open (non-load share model).
Increase the final target speed value and/or decrease the
crank speed value.
Engine
overspeeds at
startup
The proportional value is too low. Increase the proportional value.
The appropriate overall gain (OVG) value is too low. Increase the appropriate OVG value.
The startup limit is incorrect (load share model). Adjust the startup limit value.
The startup ramp rate is too high. Decrease the startup ramp rate value.

Kohler Decision-Maker 6000 Specifications

General

Brand	Kohler
Model	Decision-Maker 6000
Category	Portable Generator
Language	English