PROGRAMMING MANUAL • PH3 Mk II AIR INTAKE EMERGENCY SHUT-OFF VALVE
L6493
ECN 1-2212
L6493_Rev1
3
3
System Basics
Controller settings are accessed and configured using
toggle switch and Mode Selection Box.
Mode Selection Box is located within harness. See
Figure 3-A for summary of fuse positions.
Fuses F1 & F2 are inserted or removed to
access different modes.
Mode Selection Box cap must be re-installed after
use.
Fuses F1 & F2 are used only for configuring
modes and are not connected to main system power.
3-A
4
Quick Functions
4.1
Manual Trip
Manual Trip closes valve and causes engine (if running) to shut down. To perform Manual Trip:
Push and release toggle switch
4.2
Automatic / Manual Reset Mode
To change valve behaviour between Auto/Manual Reset Mode access Mode Selection Box and:
Remove fuse from F2 on Mode Selection Box to select Auto Reset Mode
OR
Insert fuse into F2 on Mode Selection Box to select Manual Reset Mode
4.3
Secondary Trip Speed
System can force engine shutdown at 2 different engine speeds. Secondary Trip Speed can be used for protection of
auxiliary equipment powered by Power Take-Off (PTO) system or as anti-theft mechanism when set near idle speed.
To Activate, Program, or Test Secondary Trip Speed,
Provide 6 to 36 VDC to Pink Wire (Pin 7 on Connector B). This can be done via existing PTO activation device
or via latching switch (not provided).
NOTE: To prevent accidental shut down while enabling/disabling Secondary Trip Speed, a 5 second grace period is
applied when switching to a lower trip speed, to allow for engine speed to reduce. Change is applied immediately
when switching to a higher trip speed.
