Construction Mode
2-58 Manual # 42-02-7223 C1
Calibrating Actual Car Speed (Quattro DC Drive)
If iLand and iLink are already installed, use the landing system speed (Speed/Actual on the
Operational Status tab) as the speed reference for speed calibration. If not, use a hand-held
tachometer to obtain the value.
If you are using a hand-held tachometer, hold it against the hoist or governor rope on the
machine. The car must run at the commanded inspection speed in both directions. If the mea-
sured inspection speed does not match the commanded value, verify the following:
1. Verify the Inspection - High Speed parameter (View > Configuration > Pattern > Modes
tab).
2. Verify that Pattern scaling is set to 100% (Configuration > Pattern > Common tab).
3. Verify drive parameters set earlier. Please refer to “Initial Drive Settings (Quattro DC
Drive)” on page 2-47.
4. Adjust A1-Contract Mtr Spd (higher RPM for increased speed) in small increments to
obtain the correct Inspection speed.
Verify Pattern Command and Drive Speed Feedback
1. From the View > Diagnostics menu, select Virtual Oscilloscope, and set Test point 1 =
Pattern (Command) and Test point 2 = Speed Feedback.
2. Run the car on Inspection and verify that the Speed Feedback trace is following the Pat-
tern (Command) trace. (If Standard Profile/High Speed, Inspection Profile/High Speed,
and actual car speed are correct, this will be the case. If not, verify and correct these set-
tings.)
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