MEC 20 MICROPROCESSOR ENGINE/GENERATOR CONTROLLER
PM047 Rev 13 05/03/30
61
Thomson Technology
Note:
If preheat and /or prelube functions are utilized, the engine start delay
time should be set as required for these functions.
10.3.11. CRANK TIME
Select desired cranking time in seconds. If cycle cranking is selected, this time
will be the crank time period on each attempt.
10.3.12. REST TIME
Select desired rest time between cranking attempts. (Only valid if multiple crank
attempts are selected).
Note:
This value will be ignored if only one attempt has been programmed.
10.3.13. STARTER RE-ENGAGE DURATION
This feature will check for a speed signal while cranking. If no speed signal is
sensed, the controller assumes that the engine starter is not turning the engine
over (for whatever reason), and disengages it after the programmed time delay,
and re-engages it again. This process will repeat until a speed signal is sensed
or cranking time expires, whichever occurs first. If a speed signal is sensed, the
cranking output will be maintained until the unit starts or an overcrank condition
occurs. Set time in seconds for desired sampling period, i.e. a setting of 5
seconds will attempt cranking for 5 seconds after which time if no speed signal is
detected, the crank output will be removed for a preset 1 second delay before re-
engaging.
Note:
This action is more than a cycle cranking function and is independent of
the number of attempts selected, therefore, the "crank" time should be
considered. To disable this feature, set to zero.
10.3.14. NUMBER OF CRANK CYCLES
Set to the number of cranking cycles required. (Zero will default to one.)
10.3.15. BYPASS DELAY
This setting is the time period that affected Alarm or Shutdown inputs will be
ignored after crank disconnect, allowing the engine to settle into its normal
operating mode (i.e. proper oil pressure, etc.). This is typically set to 10 seconds.
