DynaGen ES52 - 2.5.6 Crank and Crank Rest; 2.5.7 Selecting the Maximum Number of Crank Tries; 2.5.8 Crank Disconnect and Over-speed Pot Adjustment; 2.5.9 Loss of Speed (...During Cranking: DIP 9)

Operating & Installation Manual for the ES52 Engine Controller
17
2.5.6 Crank and Crank Rest
Enter Setup Mode by setting DIP switches 1, 2 & 3 to the ON position. Apply power to Auto,
and the over crank LED will flash. The time between flashes indicates the Crank and Crank Rest
time. Adjust pot accordingly to increase or decrease Crank/Rest time.
2.5.7 Selecting the Maximum Number of Crank Tries
The Crank tries are adjustable from DIP switch positions 1, 2 and 3. Select the Crank tries most
appropriate for your application. Note that an extended Crank attempt range is available, which
extends the Crank time to a time spanning from 4 to 256 seconds.
CRANK
ATTEMPTS
SWITCH
1
SWITCH
2
SWITCH
3
TIME RANGE
SETUP
ON
ON
ON
4 - 36 sec
6
OFF
ON
ON
4 - 36 sec
5
ON
OFF
ON
4 - 36 sec
4
OFF
OFF
ON
4 - 36 sec
3
ON
ON
OFF
4 - 36 sec
2
OFF
ON
OFF
4 - 36 sec
1
ON
OFF
OFF
4 - 36 sec
1
OFF
OFF
OFF
4 - 256 sec
2.5.8 Crank Disconnect and Over-speed Pot Adjustment
From the factory, the crank disconnect is set to 20 Hz in low speed mode and 300 Hz in high
speed mode. One turn gives approximately 6.4Hz in low speed and approximately 205Hz in high
speed mode.
From the factory, the Over-speed is set to 69 Hz in low speed mode and 1080 Hz in high speed
mode. One turn gives approximately 13Hz in low speed and approximately 410Hz in high speed.
To determine the proper crank disconnect and over speed setpoints the best method is to use a
signal generator (also known as a function generator). If you do not have one you can adjust the
pots knowing the factory defaults and the Hz/turn given above.
2.5.9 Loss of Speed (…During Cranking: DIP 9)
In the event there is a loss of speed, while cranking or running, the unit will shut down, and this
is indicated by a flashing Over-speed LED. Loss of speed is defined as no speed signal for at
least 3 seconds. Loss of speed begins 3 seconds into the crank cycle.
The Loss of Speed While Cranking portion can be disabled via DIP switch # 9. When the DIP
switch is in the UP or ON position, the Loss of Speed While Cranking function is enabled. When