PAGE 54 — GENERATOR SERVICE AND TROUBLESHOOTING MANUAL — REV. #0 (08/29/23)
ECU 9988N
ADJUSTING FAULT DELAY
This adjustment is for how long the engine can run in fault
mode.
Turn the engine fault delay adjustment potentiometer
(Figure 56E) 30 turns counterclockwise. This will allow for
about 1 second of fault delay. Fault delay is begun after
the engine has started.
The purpose of the delay is to allow time for oil pressure
to build adequately, before the oil pressure monitor starts
checking the oil pressure sender. High water temperature
is also ignored during the fault delay time to allow engine
coolant to circulate in the engine.
ADJUSTING ENGINE CRANK CYCLE TIME
This adjustment is for the starter ON time.
Turn the engine crank cycle adjustment potentiometer
(Figure 56F) 30 turns counterclockwise.Then turn it about
3 turns clockwise. This will allow about 1 second or so of
actual engine cranking (starting motor on) time. Each turn
adds about 1 second to the crank time. Adjusting the crank
time automatically sets the rest time to the same value.
Multiquip recommends a 3 second crank cycle on average.
DO NOT exceed 10 seconds.
ENGINE CRANK CYCLES
(DIP SWITCHES 1, 2 AND 3)
Using a small, at-blade screwdriver, set DIP switches 1,
2 and 3 as referenced in Table 3 and Figure 58 to achieve
the desired number of attempted engine crank cycles.
Engine crank cycles is dened as the amount of times the
engine will turn on the starter to attempt engine cranking.
Table 3. Crank Cycle DIP Switch Settings
SW1 SW2 SW3 CYCLES
OFF OFF OFF 1
OFF ON OFF 2
ON OFF OFF 3
1
ON ON OFF 4
OFF OFF ON 5
OFF ON ON 6
ON OFF ON 7
ON ON ON 8
1
OEM set point from factory.
Figure 57. DIP Switches (Crank Cycles)
If the engine fails to start within the set intervals displayed
within Table.3, the "Overcrank" LED (Figure 58) should
be ON. To reset the controller a power reset is required.
To initiate a power reset, simply toggle the Auto-Manual Off/
Reset switch (Figure 58) from the manual position back to
the Off/Reset position.
Figure 58. Controller Power Reset
ON
1
2
3
4
5
OFF
DIP SWITCHES
1~3
LOW OIL PRESSURE
HIGH COOLANT TEMPERATURE
OVERCRANK
OVERSPEED
ENGINE RUNNING
AUTO
MANUAL
OFF/RESET