Advantech TREK-303 Instrukcja Użytkownika Pobierz pdf (Strona 46)

TREK-550/303 User Manual 34

LOW_DELAY stage and start to count down. During the stage of LOW_DELAY

countdown, if battery voltage is back above LOW_THRESHOLD, the VPM con-

troller will stop counting down and exit. If LOW_DELAY counts to zero, the VPM

controller will send an event (power button press) to notify the system, go into

LOW_ HARD_DELAY stage and start to count down. Once LOW_

HARD_DELAY counts to zero, the VPM controller will cut off the system power

abruptly to avoid draining out the car battery.

The table below lists the user programmable parameters for VPM features:

Default value Acceptable range

ON_DELAY 2 seconds 1 ~ 18000 seconds

OFF_EVENT_DELAY 5 seconds 1 ~ 18000 seconds

HARD_OFF_DELAY 60 seconds 1 ~ 18000 seconds

LOW_THRESHOLD (12V mode) 11.42 V 10.09 ~ 12.25 V

LOW_THRESHOLD (24V mode) 22.44 V 21.11 ~ 23.28 V

LOW_DELAY 30 seconds 1 ~ 3600 seconds

LOW_ HARD_DELAY 60 seconds 1 ~ 3600 seconds

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Advantech TREK-303 Instrukcja Użytkownika Strona 46