2-39
Auto Tuning and Encoder Alignment
iControl AC
2
elevator reaches its peak speed that is less than contract speed). This transition should
have no vertical (too much Lag delay) or horizontal (too little Lag delay) discontinuity.
This transition adjustment is only valid when the elevator is unable to reach the maxi-
mum speed for a particular profile (unable to reach contract speed under normal oper-
ation). A physical oscilloscope may be required to see this transition properly. Adjust
the Lag delay until the vertical discontinuity is eliminated.
•
For initial setup, set the Lag delay parameter to 0.3 seconds on Configuration => Pat-
tern => Common => General.
• Velocity and acceleration: (a) profile at contract speed; (b) insufficient lag
compensation with profile at less than contract speed; (c) excessive lag com-
pensation with profile at less than contract speed; (d) optimum lag compen-
sation with profile at less than contact speed.
3. Depending on the tuning of the Quattro drive, the leveling distance may have to be gen-
erous to allow the elevator speed to completely transition to the requested leveling
speed.
• For initial setup, set the Leveling distance parameter to 2.0 inches on Configuration
=> Pattern => Common => Leveling. Once the drive is tuned, this parameter may be
adjusted to a more optimum value.
4. Depending on the tuning of the Quattro drive, the transition from leveling speed to zero
speed may be sluggish.
• For initial setup, set the Normal rate limited stop parameter to 2.0 ft/s
2
or more on
Configuration => Drive => General => System. Once the drive is tuned, this parameter
may be adjusted to a more optimum value.
Please see the Magnetek Quattro PM Drive Technical Manual for tuning/adjustment proce-
dures.
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