Section 3 - Troubleshooting
I/O Board Inputs and Outputs
114101-000 X26 Ultra Narrow - Service Manual
Page 3-9
Table 3-3:
Connector J2
Table 3-4:
Connector J3
PIN
PIN DESCRIPTION
CONDITION
VOLTAGE
CONTINUOUS
TO PIN
J2-1
Depression mechanism activation (extend)
Lift Up requested
0V
—
Lift Up not requested
BV
J2-2
Not Used
—
—
—
J2-3
24 Volt supply for solenoids
Upper & Lower E-Stops closed
BV
J4-5 & J3-3
Upper or Lower E-Stop open
0V
J2-4
Forward solenoid activation
Forward requested
0V
—
Forward not requested
BV
J2-5
Reverse solenoid activation
Reverse requested
0V
—
Reverse not requested
BV
J2-6
Up solenoid activation
Up requested
0V
—
Up not requested
BV
J2-7
Steer Left solenoid activation
Steer Left requested
0V
—
Steer Left not requested
BV
J2-8
Steer Right solenoid activation
Steer Right requested
0V
—
Steer Right not requested
BV
PIN
PIN DESCRIPTION
CONDITION
VOLTAGE
CONTINUOUS
TO PIN
J3-1
Alarm activation
Alarm sounding
(out of level unit lowering, etc.)
†
—
† If the alarm is sounding because the unit is out of level, BV will drop to 0V as long as the alarm is sounding.
If the alarm is sounding because the unit is lowering, there will be alternating high and low voltages (the voltages will vary).
J3-2
Level Sensor output signal
Unit within Level Sensor angle
BV
—
Unit outside Level Sensor angle
0V
J3-3
24 Volt supply for Alarm, Level Sensor and solenoids,
Upper & Lower E-Stops closed
BV
J2-3 & J4-5
Upper or Lower E-Stop open
0V
J3-4
Input from platform down Proximity Switch
Above Proximity switch
0V
—
Below Proximity switch
BV
J3-5
Down solenoid activation
Down requested
0V
—
Down not requested
BV
J3-6
Depression mechanism activation (retract)
Drive requested
0V
—
Drive not requested
BV
J3-7
Not Used
—
—
—
J3-8
Battery negative supply for Level sensor and Proximity switch
—
B–
J4-11