Class1 107490 - UNI-Governor 107396 107269 software v 6 00 - Manual (Page 24)

23 C:\manuals\Uni-Gov-V6-107490
Wiring
Power and Ground
It is imperative that the Class1
Pressure Governor be supplied power and ground from the same
source as the engine Electronic Control Module.
This is the only configuration that will assure reliable operation.
Terminal A-1 This is the Governor power input 12/24 VDC.
Terminal A-2 This is the Governor ground input.
Interlocks
There are two (2) 12 VDC interlocks that must be supplied to the governor for operation.
Terminal B-2
The Throttle Ready or OEM Interlock must be continuously maintained once it is established. This
input allows the governor to operate in RPM mode and accept a High Idle input.
Terminal B-10
The Pump Engaged Interlock is necessary to initiate pressure governing and it must not cause the
OEM interlock to dropout when it is established or erratic operation of the governor could ensue.
When the pump engaged interlock is active, the high idle function is precluded.
If a CAT Engine is installed, provide 12 VDC to terminal 12-4. This will ensure that the governor
will always output a PWM signal and ignore any engine type programming. This engine type will
show up as an ’a‘ during the power on sequence.
High Idle
Terminal B-3
This 12 volt signal input causes the governor to bring the engine to a preset RPM.
Throttle Enable Relay
Terminals B-11 and B-12
There is a governor controlled relay available to switch signal voltage or ground to the remote
throttle enable signal. This is the recommended configuration to handle the throttle source switch-
ing function from the cab throttle to the remote throttle. Since it is controlled by the governor, it
disables remote throttle operation whenever [MODE] is shown in the display.
Transducer Connection
Terminals B-5, B-6 & B-7
Sensor ground is provided at terminal B-5.
Sensor voltage (5VDC) for the pressure transducer is at terminal B-6.
Sensor signal is input at terminal B-7.
Wiring should be straight from the transducer for at least 2 inches before being bent.
Engine ECM Connections
Terminal B-1, B-8 and B-9
The engine control signal output (B-8) is sent to the engine ECM. It should be connected to the
remote throttle input terminal. B-1 is ECM 5 VDC and B-9 is ECM signal ground.