Description Of Signals On The Travel Lever - Bomag BW 154 AP-4 Manual

Service Training BW 154/174-4 AP
8.3

Description of signals on the travel lever

Notes:
Wherever the value of 12 V is mentioned in the following text, it refers to the current battery voltage
under due consideration of voltage drops in the lines.
PIN travel Signal description
lever
X23:1 Voltage supply (permanent voltage)
X23:2 Ground connection
Output BTS brake
X23:3
Digital output (max. 4 A)
Output BTS (not used)
X23:4
Digital output (max. 4 A)
Output voltage supply for additional analog evaluations
X23:5
This output supplies the 24-stage travel range selector switch. This
voltage is required to connect and evaluate further analog switches to
the travel lever.
Interface CAN-Bus 2 Wire +, is used to communicate with ESX and
X23:6
engine EMR.
Interface CAN-Bus 2 Wire -, is used to communicate with ESX and
X23:7
engine EMR.
AGND = Analogue ground: Ground potential for additional analog
X23:8
evaluations
Reference to PIN X23:5
Node address addressing 1
X23:9
Node address addressing 2
X23:10
Input travel stage selector switch
X23:11
Analog input
X23:12 Not used
Input low amplitude
X24:1
Digital input active high
Input high amplitude
X24:2
Digital input active high
Status: 25.11.10
Author: H.Mueller, VK
Description of signals on the electronic modules
Nominal values (voltage / current)
Electronics functioning
Electronics not working
0V (measured against ground)
Brake opens
Brake closes
Nominal voltage = approx. 5.0 V
Permissible range: approx. 4.8 - 5.2 V
This voltage must be measured against AGND.
Measurement not possible!
Measurement not possible!
approx. 0 V measured against ground (terminal 31)
Connection to machine ground (0V)
Connection to machine ground (0V)
The voltage signal changes with the adjusted travel speed range
Travel stage min.
Travel stage max.
---
Low amplitude active
Low amplitude inactive
High amplitude active
High amplitude inactive
approx. 12 V
0 V
approx. 12 V
0 V
?? V
?? V
approx. 12 V
0 V
approx. 12 V
0 V
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