PROGRAMMING MANUAL • PH5 AIR INTAKE EMERGENCY SHUT-OFF VALVE
L6448
ECN 1-1941
L6448_Rev3
3
3
PowerGuard Controller Set-Up Procedure
(Programmable Kits ONLY)
Set-up is required for emergency shut-off system to function. Controller uses input engine speed and user defined
safety margin to program system trip speed.
3.1
For On-Highway Vehicles with Variable Engine Speed
1.
Determine desired Trip Speed
Pacbrake recommends 30% above Rated Engine RPM
2.
With engine running at idle, enter SET Mode:
Hold
SET
&
TEST
until both lights begin to flash, then press & release
SET
.
3.
GRADUALLY
raise engine speed to Input Speed –
half of desired Trip Speed
– and return to idle
4.
Press & release
SET
4 times
to set Trip Speed to double Input Speed
5.
If successful, the red light will blink 4 times. Green light should then flash every 5 seconds.
6.
Document Trip Speed for future reference
3.2
For Stationary Engines with Constant Operating Speed
1.
With engine running at constant operating speed, enter SET Mode:
Hold
SET
&
TEST
until both lights begin to flash, then press and release
SET
.
2.
Choose a desired Overspeed Margin from below to set your Trip Speed:
Press & release
SET
1 time
– Operating Speed + 10%
Press & release
SET
2 times – Operating Speed + 20%
Press & release
SET
3 times – Operating Speed + 30%
3.
If successful, red light will blink the same number of times
SET
was pressed. Green light should then flash
every 5 seconds.
4.
Document Trip Speed for future reference.
NOTE
: Table below demonstrates a simple example of programming your system.
Input Speed
SET
Presses
Overspeed Margin
Trip Speed
Margin
RPM
1000
1
+ 10%
+ 100
1100
1000
2
+ 20%
+ 200
1200
1000
3
+ 30%
+ 300
1300
1000
4
Double
+ 1000
2000
