Wideband LAMBDA controller with Stepping driver control - LCP90

Product LAMBDA controller with Stepping driver - LCP90 is separate module for control and signal processing of wideband lambda probe type LSU 4.9 a LSU 4.2 plus control of a stepper motor. Back part is designed to be attached to DIN rail.

Wideband LAMBDA controller with Stepping driver control - LCP90

356.95 € with VAT

Technical Specification

The product LAMBDA controller works with a wideband Lambda sensor type LSU 4.9 and LSU 4.2 with extended function for PID mixture regulation using a Stepping motor control.

Lambda Controller can be used for:
-  Combustion engines of automobile
-  Cogeneration units = CHP
-  Boilers for gas combustion or biomass

LAMBDA controller is based on circuit BOSCH CJ125 which serves basic function of oxygen sensor along with supporting microprocessor for filtering and control. Microprocessor also provides PID lambda regulation by Stepping motor control, Analog output – AO, diagnostic interface USB and CANbus in protocol SAE J1939.

Lambda heater is controlled by PID regulator and the resistance of measuring cell (Nerns Cell) with auto-off option according to engine speed received from CANbus / J1939.

LAMBDA controller processes and visualizes data about Lambda mixture – λ, Oxygen – O2, Ratio – A/F, Sensor temperature – T [°C], Supply voltage – U[V], Analog output – AO [V] Actual step of stepper motor [-] and Engine speed – RPM (takes from CANbus / J1939).

Main Features

  • Supply voltage range 9 to 36V (12V/24V)
  • Consumption 15W (Lambda heater and Stepping motor)
  • Operation temperature −40 to 85°C
  • Support for Lambda sensor type: LSU 4.9 and LSU 4.2
  • Used BOSCH CJ125 circuit and microprocessor support
  • Visualization:
    • Lambda – λ ........................ 0.7 to 12.5 (± 0.1%)
    • Oxygen – O2 .................... -7.5 to 20% (± 0.1%)
    • Ratio – A/F ........................ Gasoline, Diesel, Methanol, Ethanol
    • E85, LPG, CNG, Hydrogen
    • Temperature – T [°C] ........ -40 to 1050°C (± 3°C)
    • Supply voltage – U [V] ....... 7 to 50V (± 2 %)
    • Analog output – AO [V] ...... 0 to 5V (± 0.5%)
    • Digital Input DI1/DI2 ........... 0 or 12/24V
    • Engine hours ...................... [h:m:s]
    • Actual step .......................... 0 to 65000 steps
  • PID mixture regulation by Stepping motor control (microstep 1/32)
  • Power source 11V inside for LAMBDA heating and Stepping motor supply
  • CANbus support at protocol SAE J1939 (250kbps)
  • Supported connection or integration with ECU MASTER
  • Galvanically isolated USB – USB protection against earth fault and EMC disturbances
  • PC application – configuration and visualization measured values
  • Measuring the supply voltage
  • Installation standard – DIN rail 35mm
  • Protection class – IP20
  • Dimensions 118×101×23mm

Signal Description

MARKINGMEANINGRANGE, ACTIVE LEVEL
+V Power supply 9 to 36V (12V/24V)
G Ground supply 0V
AOUT+ Stepping motor – Signal A+ Power 11V / 1A, microstepping 1/32
AOUT− Stepping motor – Signal A− Power 11V / 1A, microstepping 1/32
BOUT+ Stepping motor – Signal B+ Power 11V / 1A, microstepping 1/32
BOUT− Stepping motor – Signal B− Power 11V / 1A, microstepping 1/32
DI1
DI2
Digital input signal 0 or 12/24V (active signal)
AO Analog Output 0-5V (± 0.5%)
CAN H
CAN L
CAN bus SAE J1939 / 250kbps
LSU 4.9 (LSU 4.2)
IP (red) Lambda LSU - pin 1 (6*) IP/APE - pump current shunt input
VM (yellow) Lambda LSU - pin 2 (5*) VM/IPN - virtual ground output
HEAT− (white) LSU - pin 3 (4*) Uh−/H− – heating +
HEAT+ (gray) Lambda LSU - pin 4 (3*) Uh+/H - heating +
IA (green) Lambda LSU - pin 5 (2*) IA/RT - pump current control output
UN (black) Lambda LSU - pin 6 (1*) UN/RE - inverting input of pump

* Index of pins depends on Lambda sensor type; index in bracket belong to type LSU 4.2

Wiring Schema

Application LAMBDA control – visualization software

Visualization is done from application LAMBDA control run on your PC. The application works under Windows 95 and higher. Installation requires 4MB of free space at your hard disc.

To connect lambda to PC is used USB interface. Driver for USB is included on the installation CD.

Visualized information

  • Revolutions [rev/min]
  • Lambda – λ
  • Oxygen – O2
  • Ratio – A/F
  • Temperature – T [°C]
  • Supply voltage – U [V]
  • Analog output – AO [V]
  • Engine hours [h:m:s]
  • Actual stepping motor possition [-]

Icon to run the visualization Run the visualization


AFR – Air Fuel Ratio

 

Documentation

Name Date File
LAMBDA_AnalogOUT V8.3-0 [pdf, 180kB] 11.01.2018 Download
LAMBDA_AnalogOUT V8.3-0 [xls, 183kB] 11.01.2018 Download
LAMBDA controller with Stepper driver - LCP90 [pdf, 900kB] 11.01.2018 Download
J1939_CANopen_Protocol [pdf, 39kB] 31.05.2016 Download
Certificate – Radio disturbance characteristics; Immunity characteristics 10.08.2015 Download

Application Software

Name Date File
LAMBDA control V9.0.21 [zip, 774kB] 11.01.2018 Download
USBdriver_v2.12.24 [zip, 1335 kB] 21.02.2017 Download

Available Variants

Name Cena s DPH  
Wideband LAMBDA controller with Stepping driver control - LCP90 – Type basic 356.95 €

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