Rotary Switch (Optional Command Signal) - Meritor TACTX HMIS Maintenance Manual

Section 2
Rotary Switch (Optional Command
Signal)
J1939 is the preferred method for obtaining the
command signal for the suspension height. How-
ever, the system has provisions for control via an
analog input. In this case, a potentiometer or a
switched resistor network (Figure 2.5 Optional
Rotary Switch Command Signal) may be used to
provide the command signal. The resistor network
is powered by the sensor supply and return of the
pneumatic control unit.
R6
2.2k, 1/2W
R5
2.2k, 1/2W
Deutsch 4-pin Socket
R4
2.2k, 1/2W
4
3
2
1
R3
J1
2.2k, 1/2W
R2
2.2k, 1/2W
R1
2.2k, 1/2W
Figure 2.5 Optional Rotary Switch Command Source
Table 3: Analog Command Signal
Description
Pos Signal(V)
1 0.83 Emergency
2 1.66 Mud/sand/snow
3 2.49 Cross-country
4 3.32 Highway
5 4.15 Stand off
This is typical example only. Devices may vary
from application to application.
Meritor Maintenance Manual MM-0997 (Revised 12-09)
SW 1
SW ROTARY 1P-5W
4007559a
Height
Description
(mm)
0
50
100
150
300
Components
Page 9