User Manual

Table Of Contents
Electric System LEXION 500 TIC
M-26 Lex-e-M 03/05
Module A49 – Ground drive (EFA)
Pin Function Component Measuring
variable
Direction Circuit
diagram no.
1 Sensor earth B97, B98, R39 0V (200mA) Output 43
2 Road travel (red) S52 12V Input 4, 43
3 4-Trac (All-wheel drive) ON S1 12V Input 32
4 Reel speed controller ON/OFF S123 12V Input 43
5 Brake light and diesel engine contol
unit
Z84, Z85 12V Input 43
6 Ground drive forward Y141 12V (PWM) Output 43
7 --- --- --- --- ---
8 Reference - PWM Y141 ~ 0V Input 43
9 Reference - PWM Y144 ~ 0V Input 43
10 --- --- --- --- ---
11 --- --- --- --- ---
12 --- --- --- --- ---
13 RS232 GND (Diagnosis EFA) X97 --- --- 43
14 Sensors reference voltage R39, B99 5V Output 43
15 Earth supply -31 Earth Input 6
16 Hydraulic motor speed 1 B99 High-Low (+) Input 43
17 Hydraulic motor speed 2 B99 High-Low (+) Input 43
18 Service brake left / right 25 bar
signal
Z79-2,Z80-2 12V Input 43
19 Safety start switch / Ground speed
control lever neutral signal
Z57 12V Input 1
20 RS232 TxD (Diagnosis EFA) X97 --- --- 43
21 RS232 RxD (Diagnosis EFA) X97 --- --- 43
22 Ground drive shut-off valve
(emergency brake) 80 bar
Y143,
Z79-1, Z80-1
12V Output 43
23 Reference - PWM Y142 ~ 0V Input 43
24 --- --- --- --- ---
25 Reference - PWM Y143 ~ 0V Input 43
26
27 Ground drive variable displacement
motor
Y144 12V (PWM) Output 43
28 Supply voltage F75 12V Input 4, 6, 43
29 Earth supply -31 Earth Input 6
30 --- --- --- --- ---
31 Ground speed control lever position
I
R39 0.7V - 4.8V Input 43
32 Ground speed control lever position
II
(inverted, redundant)
R39 4.8V – 0.7V Input 43
33 --- --- --- --- ---
34 --- --- --- --- ---
35 Ground drive hydraulics forward
high-pressure sensor
B97 0.25-4.75V Input 43
36 Ground drive hydraulics backward
high-pressure sensor
B98 0.25-4.75V Input 43
37 CAN high (J1939) --- --- --- 6
38 CAN low (J1939) --- --- --- 6
39 CAN GND (J1939) --- --- --- 6
40 Brake light (ground speed control
lever)
K66 12V Output 49
41 EHS release A37 12V Output 44
42 Supply voltage F75 12V Input 4, 6, 43