Description Of Signals On The Data Collector - Bomag BW 154 AP-4 Manual

Service Training BW 154/174-4 AP
8.2

Description of signals on the data collector

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 data Signal description
collector
Input indicator right
X26:1
grey Digital input active high
Input indicator left
X26:2
grey Digital input active high
Input engine running (D+)
X26:3
grey Digital input active high
Input engine air filter
X26:4
grey Digital input active low
Input coolant supply
X26:5
grey Digital input active low
Input excessive engine temperature switch 1
X26:6
grey
Digital input active low
Input engine oil pressure switch
X26:7
grey
Digital input active low
Input engine preheating active
X26:8
grey Digital input active high
Input water tank low level left
X26:9
grey Digital input low high (normally closed)
Input water tank low level right
X26:10
grey Digital input low high (normally closed)
Status: 25.11.10
Author: H.Mueller, VK
Description of signals on the electronic modules
Nominal values (voltage / current)
Indicator right active
Indicator right inactive
Indicator left active
Indicator left inactive
Engine running
Engine not running
Filter clogged
Filter OK
Coolant supply too low
Sufficient coolant supply
Temperature exceeded (switched)
Temperature OK
Oil pressure OK
No oil pressure
Preheating off
Preheating active
Water level above minimum
Water level below minimum
Water level above minimum
Water level below minimum
approx. 12 V
0 V
approx. 12 V
0 V
approx. 12 V
0 V
0 V
? V
0 V
? V
0 V
? V
0 V
? V
0 V
12 V
0 V
? V
0 V
? V
Page 27 of 38