Manual Drive Setup Procedure - MCi iControl User Manual

3. Once the calibration is Done, the offset values shown on the Setup > Drive tab should
match those shown on the Drive Configuration tab (Configuration > Drive > Calibration
tab).

Manual Drive Setup Procedure

MCE recommends performing the Automated Drive Setup Procedure previously described.
However, if the automated procedure is unsuccessful, the manual procedure may be used. The
1. Verify that Pattern scaling is set to 100% (Configuration > Pattern > Common tab).
2. With zero speed commanded (car idle), verify that the pattern voltage applied to the AC
drive unit between F5 drive terminals X2A-1 (+) and X2A-2 (—) reads 0.0 volts. If not,
adjust Output DAC on the Drive/Calibration screen by entering and sending small nega-
tive or positive values until the reading is as close to 0.0 volts as possible (less than
1mV). The DAC adjustment range is from —0.25 to +0.25 units.
3. On iView, display the Drive - Offsets tab (Configuration > Drive > Calibration tab). Also
display the Virtual Oscilloscope (View > Virtual Oscilloscope) and set Test point 1 =
Tachometer Signal.
4. Adjust the Input ADC - Tachometer
parameter by entering and sending
small negative or positive values until
the Test point 1 value is as close to 0.0
as possible (± 20mV). The ADC adjust-
ment range is from —0.5 to +0.5.
5. Set the Virtual Oscilloscope Test Point 1 = Brake Current Feedback and then adjust the
Input ADC - Brake current parameter by entering and sending small negative or positive
values until the Test point 1 value is as close to 0.0 as possible.
6. Set the Virtual Oscilloscope Test Point 1 = Brake Voltage Feedback and then adjust the
Input ADC - Brake voltage parameter by entering and sending small negative or positive
values until the Test point 1 value is as close to 0.0 as possible.
Drive Offsets Calibration
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