Motion Control Engineering Nidec iControl, User Manual, Page: 94 / 453

4-5
Verifying One Floor Run Operation
iControl AC
4
1. On the iView Virtual Oscilloscope :
• Set Test point 1 to Pattern Command
• Set Test point 2 to Speed Feedback
(8-volts equals contract speed)
2. Run the car between floors to any intermediate landings (avoid activating terminal
switches).
3. Observe the car starts, accelerates, then decelerates into the floor and stops. If the car
overruns a floor, the relevel function will be activated. The Leveling Speed on the first
approach to a floor and the Releveling Speed (if releveling is necessary) are two sepa-
rately programmable values set on the Configuration > Pattern > Common tab.
Verify Releveling
1. When the car is at a floor, simulate overrunning by temporarily changing the floor
height Offset (Configuration > Floor Heights > Floor Offsets tab) to 0.50” and pressing
the Send button.
2. Observe the releveling operation. (Return Offset to the proper setting and press Send.)
3. Monitor the brake voltage on terminals B1 to B2 (located just below the iBox). Make
sure that a relevel brake voltage exists to avert stalling or excessive current draw by the
AC Drive during a relevel operation. Gearless machines are intended to drag the brake
during a relevel, so a partial pick is appropriate. Note, however, that if the brake did not
drop fully before the relevel, the reduced brake voltage may still hold the brake fully
picked.
4. Note that the relevel brake voltage is the same as pick voltage if you are using a low cur-
rent brake.
Do not spend a lot of time here working on the brake, just be sure the brake does not stall the
motor on a relevel. Final brake adjustment is a later topic in this section.
(Please refer to “Brake
Parameter Adjustments” on page 4-19.)