6 Wiring
30
Rev. 06/2020
6.2
Wiring – Sensors on the SCR Catalytic Converter
The sensors before and after the SCR catalytic converter are connected via CAN bus. The pump
module is wired using the 6-pole connector in the device cover. To meet EMC requirements,
install the control units of the NO
X
sensors and the control unit of the two temperature sensors
on an earthed metal plate.
Module Sensors
1
NO
X
sensor before the catalytic
converter
2 NO
X
sensor after the catalytic
converter
3
Temperature sensors before and after
the catalytic converter
The modules can be wired in any order. The sensors are permanently connected to the CAN
modules.
Pin
Designation
Function
1
SCR Cataly
st Sensors
CAN Hi
Connection of the CAN bus which integrates the NO
X
sensors and the temperature sensors before and after
the catalytic converter.
2 CAN
Com
3
CAN Lo
4 CAN
Shield
5
Power
Power supply of the sensors
6 GND
Summary of Contents for VariSCR
Page 1: ...VariSCR NOX Emission Controller Operating Manual P N 01 50 025 EN Rev 06 2020...
Page 111: ...Rev 06 2020 111...
Page 112: ......
