Motion Control Engineering Motion 4000, Manual

Page: 137 / 459

Setting Up Performance Curves
3-15
3
Motion 4000
Adjust for Drive Response
Depending on how the drive is tuned, the amount of lag between the commanded speed and
drive response can vary. As a result, as the drive is adjusted, the Profile Advance parameter in
the controller F7 menu will need to be changed as well. Use the information below along with
the information in the figure, Velocity and Acceleration on page 3-16, and the tuning instruc-
tions following the figure to make these adjustment.
• If lag delay is insufficient, the elevator will plow into a landing. The acceleration and jerk
rate during deceleration to a landing will be greater than profile values indicate.
• If lag delay is excessive, the elevator will drag into a landing. The acceleration and jerk rate
during deceleration to a landing will be less than profile values indicate. In addition, a dis-
continuity in the profile will occur during the transition from acceleration to deceleration
for movement between floors where a stabilized speed (contract speed) is not reached
(short runs).
• To adjust lag delay, observe the commanded speed on the TC-MPI board at the AN1
analog output. Perform one-floor-run movement and observe the peak acceleration
transitioning to peak deceleration as the elevator reaches its peak speed (below con-
tract speed). This transition should have no vertical discontinuity (too much lag delay).
This transition adjustment is only valid when the elevator is unable to reach contract
speed for the profile under normal operation. Adjust lag delay until the vertical discon-
tinuity is eliminated.
• KEB/TorqMAX: Generally, the Profile Advance (F7, 140) will be within 50 to 150 millisec-
onds.
• Magnetek: Generally, the Profile Advance (F7, 140) will be within the following range (in
milliseconds):