Gen3 - Installation - Generic Electrical Drive Direction Signals
The drive direction signals inform the Gen3 LMS that the machine is in drive and to
activate a camera display based on the direction selected.
The following sections serve to illustrate common electrical connections from the Gen 3 safety system to the existing electronics in the machine. The purpose of this Tech Doc is not to provide a wiring setup for any specific telehandler, but rather to provide generic guidance for customers when trying to troubleshoot electrical drive direction issues.
The drive direction is usually controlled via a column switch attached to the steering wheel.
Typically the column switch is a basic 3 pole switch design with 3 lines: common, forward
and reverse. When the machine is not in gear or in neutral, none of the lines are
connected. When in forward gear the common line is connected to the forward line and
when in reverse gear the common line is connected to the reverse line.
Drive direction sensing is implemented within the CCIM module. Control signal detection for any particular telehandler is set up in the EQSS factory, just before shipping. It is a machine specific configuration that is accomplished via DIP switch banks. Customers/users should never change the DIP switch settings unless specifically directed by EQSS personnel.
If the common line is a ground signal, the diode direction in
the wire loom will need to be reverse
The other wires on the machine input connector are for the
override switch and may need to be extended
A 4 pin connector with 4 bare wires will have been supplied with the kit (called the machine
input connector). Splice the black wire going into the machine forward signal and splice the blue wire going into the machine reverse signal.
Some of the newer cabin designs have the direction switch attached to the joystick, this
should also be a basic 3 pole switch design and can be connected in the same way.
Some direction switches are integrated with a processor with a CAN output. The Gen3
LMS does not support direct connection into the machine's CAN bus. The wires from the
machine input connector will need to be soldered directly onto the input pins to the switch's
PCB, if the PCB is accessible.
Some machines have a direction switch on both the column
switch and the joystick. The Gen3 LMS DIY kit does not
support multiple direction switches, contact EQSS for a
solution.
Related Articles
Gen3 - Installation - Generic Machine Electrical Connections
To accommodate the various brands and many models, a substantial number of Gen 3 installation kits have been engineered and are available for purchase from EQSS. The following sections serve to illustrate common electrical connections from the Gen 3 ...Gen3 - Installation - Generic Stabiliser State Signals
When the stabilizers are down the lifting capacity increases, the Gen3 LMS requires the stabilizer state to display the correct rating chart. The purpose of this Tech Doc is not to provide a wiring setup for any specific telehandler, but rather to ...Gen3 - Installation - Generic Cutout Overide
When the hydraulic cutout is engaged it may be necessary to override the cutout function in order to move the boom into a safe position. The following sections serve to illustrate common electrical connections from the Gen 3 safety system to the ...Gen3 - Installation - Generic Hydraulic Cutout
The hydraulic cutout disables the boom movements when the machine is lifting a load greater than the capacity for that region. The following sections serve to illustrate common electrical connections from the Gen 3 safety system to the existing ...Gen3 - Installation - Generic Gen 3 LMS Schematics
The Schematics below can be used to help with diagnosing EQSS Gen 3 LMS wiring faults on a Telehandler Generic Gen 3 LMS Schematics