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Hydraulic System
Manual Control Model
The hydraulic levers are used to operate the pump
motor. The fixed duties selected by the setup options
below provide chopper control for the IGBTs.
(1) Start lift speed (SUO #2) and top lift speed (SUO
#3)
The two-stage lift lever is used to set the speed.
The first stage is for the start lift speed, and the
second stage is for the top lift speed. Do not set the
start lift speed faster than the top lift speed.
(2) Tilt speed (SUO #4)
The tilt lever is used to set the speed.
(3) Attachment 1 speed (SUO #5) and attachment 2
speed (SUO #6)
The attachment levers are used to set the speed.
FC controller signal
CN1-20 CN1-19 CN1-18 CN1-17 CN1-16
0
0
0
0
0
0
0
0
0
0
0
0
0
0
1
0
0
1
0
1
*
1
0
*
1
1
*
0
0
1
0
1
1
1
0
1
0
0
1
1
1
1
***: Except 110 and 111
1: Open (15V) 0: Close (0V)
0
0
No operation.
0
1
1st-stage lift operation.
1
0
2nd-stage lift operation.
1
1
Tilt operation.
0
0
Attachment 1 or attachment 2 operation.
0
1
Lift down.
Finger control lever abnormality.
*
*
Solenoid abnormality.
*
*
Hydraulic sensor abnormality.
*
*
1
0
Not all levers in neutral or OFF position at power ON.
1
0
Lift and tilt levers in ON position at power ON.
1
0
Lift, tilt and attachment levers in ON position at power ON.
1
1
Seat switch OFF at power ON.
1
1
FC controller abnormality
(4) Priority
When two or more levers are operated at the same
time, the following priority order is effective.
(High priority) Tilt lever, Attachment 1 lever,
Attachment 2 lever, Lift (Low priority)
Finger-tip Control Model
This model is equipped with a finger-tip control device,
and finger-tip control levers are used instead of manual
levers. The FC controller outputs encoded 5-step speed
instructions and error signals to provide chopper
control for the IGBTs.
Lever operation and error data
1-15
MAIN CONTROLLER
Hydraulic speed
Duty 5% fix.
SUO # 2
SUO # 3
SUO # 4
SUO # 5
Duty 10% fix.
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