Gen3 - Installation - Can Pressure Input Module (CPIM)
The CPIM is responsible for processing the information sent from the pressure sensors
and also measures the carrier attitude (telehandler base angles).
The CPIM is mounted on the chassis and must be mounted with the five M12 screw lock
connectors pointing down. It must not be off by more than 5 degrees on both axes in
order to correctly measure the carrier attitude.
Since the CPIM is the interface hub for all the external sensors, it must be mounted in a
location where the pressure sensors, cable reeler and light tower can be connected. In order to correctly measure the carrier angles, the CPIM must be mounted in one of the
four orientations - right angle to the chassis as described below:
- Right – The CPIM is mounted along the frame of the chassis facing towards the
engine bay
- Rear – The CPIM is mounted perpendicular to the frame of the chassis, usually at
the back around the boom pivot point or behind the cabin and faces towards the
rear of the machine
- Left – The CPIM is mounted along the frame of the chassis facing towards the cabin
- Front – The CPIM is mounted perpendicular to the frame of the chassis usually towards the front and faces towards the front of the machine
Once the CPIM has been mounted, the cables from the external sensors can be
connected. There are six screw in connectors in total on the CPIM as shown in the picture below, plus (on some machines) a permanent height limiter cable from out
the left side of the CPIM to the rear
of the machine - to the hydraulic
block.
The four on the bottom left are for the pressure sensors. Connect the head pressure
sensor cable to the far left connector and connect the rod pressure sensor cable to the
second connector from the left.
The other two pressure sensor connectors are for the compensation sensors: Compensation Head and Compensation Rod. Mixing up and plugging the four pressure sensors into the wrong sensor ports won't damage either the sensors nor the CPIM, however, the system will not function correctly. It will generate very wild figures on the EQSS Gen 3 display and will most likely intermittently cut out. The simple remedy is to check and plug the four sensor cables into the correct ports.
The connector on the right side of the housing and on the bottom far right are for the CAN bus
interconnections. The boom cable is usually connected to the bottom far right connector.
The optional light tower can connect into the connector on the right of the housing via a tee connector.
The other side of the tee connector is attached to a 4 meter cable - referred to as the CCIM
cable. This cable connects to the CCIM mounted inside the cabin.
Coil up any additional cable from the pressure sensors, light tower and boom cable and
store underneath the covers along the chassis.
Do not mount the CPIM near the exhaust or on the high
temperature components of the engine bay, as the excessive
heat will damage the unit.
Do not plug the pressure sensor cables into any of the CAN
connectors and vice-versa. This will damage the system.
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