Upright LX31 Service Manual

Activating "TEST" Section 3 - Troubleshooting
Page 3-16 067448-023 LX31/LX41 Electric and Bi-Energy Work Platform | European Specifications
Figure 3-3:
MOS90 Wiring Diagram
E
1 2 3 4 5
TACH SPEED SIGNAL
POSITIVE SIDE OF ALL CONTACTOR COILS
NO CONNECTION NO CONNECTION NO CONNECTION NO CONNECTION NO CONNECTION NO CONNECTION
BATTERY NEGATIVE SUPPLY
TACH DIRECTION SIGNAL INPUT FROM TACH GENERATOR
POWER SUPPLY FOR
INTERFACE CIRCUIT
INPUT FROM TACH GENERATOR
TACH
GENERATOR
LEFT
MOTOR
OVER
SPEED
RELAY
48 VOLT
RELAY
TACH
CIRCUIT
INTERFACE
MODULE
RIGHT
MOTOR
REVERSE CONTACTOR
FORWARD CONTACTOR
LEFT
BRAKE
RIGHT
BRAKE
PUMP
OVERIDE
CONTACTOR
PUMP/
TRACTION
CONTACTOR
TRACTION MODE = 48 VOLTS PUMP MODE = 0 VOLTS BRAKE ON = 48 VOLTS BRAKE OFF = 0 VOLTS SWITCH CLOSED = 48 VOLTS SWITCH OPEN = 0 VOLTS TRACTION ACCELERATOR SIGNAL 3.5 TO 0 VOLTS = MIN TO MAX SPEED 48 VOLTS & GOES TO 0 VOLTS TO CLOSE FWD CONTACTOR 48 VOLTS & GOES TO 0 VOLTS TO CLOSE REV CONTACTOR FORWARD = 0 VOLTS REVERSE = 18 VOLTS FWD 0-100% = 7.5 TO 15 VOLTS REV 0-100% = 7.5 TO 0 VOLTS NORMAL = 48 VOLTS TILT OR OVER-SPEED = 0 VOLTS HEIGHT LIMIT SWITCH OPEN = 0 VOLTS NO CONNECTION POWER ON = 48 VOLTS POWER ON = 48 VOLTS FORWARD = 48 VOLTS NEUTRAL = 0 VOLTS REVERSE = 48 VOLTS NEUTRAL = 0 VOLTS NO CONNECTION NO CONNECTION
BATTERY POSITIVE FROM POWER ON SWITCHES BATTERY POSITIVE SUPPLY TO ALL CONTACTORS BATTERY NEGATIVE
– OUTPUT –
0-100% FWD SPEED = 0 TO +50 VOLTS
—
0-100% REV SPEED = 0 TO –50 VOLTS
TACH
GENERATOR
– OUTPUT –
0-100% FWD SPEED = 0 TO +50 VOLTS
—
0-100% REV SPEED = 0 TO –50 VOLTS
MOS90
CONTROLLER
– CONDITION –
NO OVER SPEED = 48 V
OVER SPEED = 0 V
FUSE
6.3 AMP
FUSE
20 AMP
TILT SWITCH
HEIGHT LIMIT SWITCH
FORWARD SWITCH
TILT SWITCH & OVERSPEED INPUT
POWER TO TURN MOS90 ON
HIGH-LOW SPEED SWITCH
TACH SPEED SIGNAL
TRACTION
REVERSE SWITCH
OFF PUMP SELECT
6K OHM POT.
PUMP
1
Black
16
White/Blue
13
White/Red
14 White/Black 15
White/Yellow
17
White/Green
2
Brown
12
White/Purple
7
Blue
4
Orange
3
Red (spare)
5
Yellow
6
Green
8
Purple
11
Pink
9
Grey (spare)
10
White (spare)
A B
C
D
E
6 7 8 9
10 11 12 13 14 15 16

Upright LX31 Specifications

General

Brand	Upright
Model	LX31
Category	Lifting Systems
Language	English