QUICK INFO:

This optional installation step is necessary when one wants to connect the Plex Knock Monitor either to an ecu, a dynamometer or an external warning light.

ANALOG OUTPUT

CONNECTOR

blue:   knock level analog output

white: knock counter analog output

black:  analog output ground

1. ECU CONNECTION

For "Viewing / Recording"

STEP 1

Connect the Knock Monitor Analog Output 1 ----> ECU 0-5V Analog input

STEP2

Configure function in menus 4.2 and 4.3

For "Ignition Knock Retard"

STEP 1

Connect the Knock Monitor Analog Output 2 -----> ECU 0-5V Analog input

STEP 2

Configure output as "ECU RETARD" in menu 4.4

STEP 3

Configure ecu to retard timing with "RISING" voltage:

Example for ECU configuration:

0V    0deg

1V    -2deg

2V    -4deg

3V    -6deg

4V    -8deg

2. DYNAMOMETER CONNECTION

STEP 1

Connect the Knock Monitor Analog Output 1 ----> Dynamometer 0-5V Analog input

STEP 2

Configure function in menus 4.2 and 4.3

STEP 3

Connect Knock Monitor Analog Output 2 ----> Dynamometer 0-5V Analog input

STEP 4

Configure function in menus 4.4 as "AUTO RESET"

3. EXTERNAL WARNING LIGHT CONNECTION

POWER + WARNING OUTPUT CONNECTOR

blue:  ext warning

black: ground

red:   +6...15volt power

Required Action

- Connect the blue "EXT WARNING" wire to an external warning light or buzzer. The output is of pull to ground type and has a max capacity of 500mA.

The external warning light will then be activated simultaneously with the red warning led.