Empty Car Tests - MCi iControl User Manual

Empty Car Tests

With the car on Machine Room Inspection and with test weights removed (empty car), the fol-
lowing steps allow you to adjust the response of the car to reduce empty car rollback while
avoiding the oscillations that can occur if too much gain is adjusted into the system. For these
tests you may use a storage oscilloscope capable of a 1.0 centimeter per second sweep rate or
you may use the iView Virtual Oscilloscope
1. On the iView
Oscilloscope for greater sensitivity and shorter timer period.
Layouts" on page
STP1 (lower right side of the iBox) with respect to Common.
The empty car will probably drift up due to the counterweight, even when an attempt is made to
move it down. Perform the following:
• TORQMAX Drive: Verify the drive gain parameters:
- A.LF.31 - Kp speed accel (proportional gain) = 3000
- d.LF.31 - Kp speed decel (proportional gain) = 3000
- A.LF.32 - Ki speed accel (integral gain) = 350
- d.LF.32 - Ki speed decel (integral gain) = 250
2. Adjust brake Pick delay and Speed pick delay 1 (iView Configuration > Brake > Timers
tab) to coordinate the application of the speed pattern with the picking of the brake to
avoid movement of the car under the brake or rollback of the car. A DRO fault may occur
if brake Pick delay is reduced to a value lower than 0.30. Generally, brake Pick delay is
set to 0.40 and Speed pick delay 1 is set to 0.50 or slightly higher. (For TORQMAX
drives, verify that LF.70 = 0.300 (Delay to turn on DRO).
3. Experiment with improving response. A little rollback at this point is not critical as later
adjustments will compensate for it.
4. Verify that Pattern scaling is 100% (Configuration > Pattern > Common tab).
5. Using the iView Operational Status tab (Speed/Actual) or a hand held tachometer, verify
that Machine Room Inspection car speed is 10% of Standard - High speed (contract
speed) and matches the Inspection - High speed setting.
Actual Car Speed" on page 2-57
Danger
At this point, the Fault/Function Bypass switch on the iBox should be in the OFF position.
Fix all faults so that no fault is bypassed before proceeding. If this is not possible, exercise
EXTREME CAUTION while making final adjustments.
Virtual Oscilloscope, set Test point 1 to Speed Feedback. Adjust the Virtual
9-153. If you are using a storage oscilloscope, monitor iBox test point
if necessary.
Prepare for Final Adjustments
Please refer to "Controller -
Please refer to "Calibrating
3
3-31