4-11
Learning Normal & Emergency Terminal Limit
iControl AC
4
Fine Tuning the Magnetek Drive
This section describes fine adjustments to the Magnetek HPV900 Series 2 drive.
Motor No-Load Current - Induction Motor only
Please see Tuning Motor No-Load Current in the appendix of the Magnetek Drive Technical
Manual for the specific steps of this procedure.
• Running the car at reduced speed with a balanced load is used to perform this procedure.
Motor torque should be below 15%.
• Motor Torque, Flux Reference, and Est No Load Curr can be viewed via drive's D2
Power Data menu.
• No Load Curr can be changed on the drive A5 Motor menu (900 series 2).
• The car speed can be temporarily changed via Pattern Scaling on the controller Config-
uration > Pattern > Common tab.
Motor Flux Saturation Curve - Induction Motor only
Please see Tuning Motor's Flux Saturation Curve in the appendix of the Magnetek HPV900
Series 2 AC/PM Drive Technical Manual for the specific steps of this procedure.
• Running the car at full contract speed with a balanced load is used to perform this proce-
dure.
• Est No Load Curr can be viewed via the drive's D2 Power Data menu.
• No Load Curr and Flux Sat Slope 2 can be changed on the drive's A5 Motor menu.
Motor Rated RPM - Induction Motor only
Please see Tuning Rated Motor RPM in the appendix of the Magnetek HPV900 Series 2 AC/PM
Drive Technical Manual for the specific steps of this procedure.
• Running the car fully loaded at contract speed is used to perform this procedure.
• Est Rated RPM can be viewed on the drive's D2 Power Data menu.
• Rated Mtr Speed can be changed on the drive's A5 Motor menu.
System Inertia (Magnetek HPV900 Series 2 or Quattro)
In order to properly tune the speed regulator of the drive, a valid inertia value must be deter-
mined. Please see Using the Software to Estimate the System's Inertia in the appendix of the
Magnetek AC Drive Technical Manual for the specific steps of this procedure.
• Running the car at full contract speed with a balanced load is used to perform this proce-
dure.
• Est Inertia can be viewed on the drive's D1 Elevator Data menu.
• Inertia can be changed on the drive's A1 Drive menu.
With the system inertia properly adjusted, final tuning of the speed regulator can be performed.
The Response parameter on the drive's A1 Drive menu is one parameter that can be used to
adjust the speed regulator.
Once tuning is complete, relearn the terminal switches. (Please refer to “Learning Normal &
Emergency Terminal Limit Switches” on page 4-8). Then perform the Shaping the Speed Profile
procedure. (Please refer to “Shaping the Speed Profile” on page 4-12).
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