MoTeC DBW-4 - Manual (Page 9)

MoTeC DBW-4 9 Introduction
Drive By Wire Calibration
WARNING!
Drive by wire throttle body motors are very powerful and can cause serious injury to users or damage to the
throttle body. Never attempt to move the butterfly by hand with the motor connected to the DBW-4 Unit.
To calibrate a DBW throttle body, the high and low limit positions must be measured and included in the calibration.
The procedure calibration procedure described here should be repeated for each DBW throttle body connected to the
DBW-4.
Step 1:
Run the DBW-4 software and load the appropriate configuration file for the DBW motor, or enter the appropriate PID
parameters. If one of the supplied configuration files is loaded, it is recommended that the configuration be saved
under a new name before continuing with the calibration.
Step 2:
Connect the CAN cable from the PC to the DBW-4 and apply power to the DBW-4. Ensure that only the sensor
wiring (TP, TP2, +5V and 0V) is connected to the DBW throttle body, and that the wiring to the motor is disconnected
before applying power.
Step 3:
Click on the Tab (PID1 to PID4) for the DBW throttle to be calibrated. Ensure that the Group type for the controller is
set to “Drive By Wire”. Press the Calibrate button to begin the calibration. After reading the displayed safety warning
and checking the motor wiring, click Next to continue.
Step 4:
Set the low limits for the measured position by following the instructions displayed (see below). For indication
purposes, the raw position values for the two measured values will be displayed as the butterfly valve position is
changed. Note that the Set button can be pressed again if the butterfly position was set incorrectly. When the low
limit position has been set, click Next to continue.