Specifications

PROPRIETARY DATA: This document contains proprietary data of ABB Inc. No disclosure, distribution (electronic or otherwise),
or other means of dissemination may be made without written permission.
3BUS 208 000 R1301 73Platform Tuning
Motor Controller Setup (ABB Drive)
The servo tuning variables, vmin and Accel, should be set up to fall within the
following ranges:
vmin = 40% to 60% of the nominal scan speed
Accel = 20% to 40% of the nominal scan speed
Adjustment of these two variables will involve a compromise between developing
a smooth start and stop of each scan and the ability to achieve fixed point positions
such as Single Point, Standardize, and Off-Sheet. The issue at the fixed points will
be not to oscillate before achieving position complete. For scanning , the issue will
be a smooth exit and entrance from and to the scan limits. Keep in mind that the
value of vmin, and ultimately activeVmin, should never exceed the nominal scan
speed. In general, increasing the value of these variables will increase the instability
at the fixed point locations.
Motor Controller Adjustment of IR Comp (menu 306)
1. With the AI Comp set to 20, place the Scanning Platform at the Off-Sheet
position.
2. Mark the beam so can tell if the head moves in either direction.
3. Wait approximately five minutes to see if the head has moved from the mark.
4. If it has not moved, the task is done and the entered values can be saved using
the ACS100 upload routine. If the head has moved, then decrease the value in
306 by 2 and redo Step 2. and Step 3.
Panel Operations
The panel display defaults to the Code 101 display of output frequency. Subsequent
pressing of the UP/DN arrow push buttons will alternate the display between the
output frequency and output current.
Moving Around the Menu
1. Press the MENU push button to show the menu group level of the last observed
parameter value.
2. Press the DN arrow push button to get to lower menu groups. It is a rotating
display buffer; so you will eventually get to where you want, even if you pick
the wrong direction.
3. When you get to the group you want, press ENTER to move into the subgroup.
The same rules apply within the subgroup.
4. At the desired subgroup, press ENTER to view the parameter value. Press and
release quickly, and the value only displays for a moment. Press it for a few
seconds, and the value will stay on the display.
5. Press MENU to get back to the submenu display.
Table 5-1 on page 72 shows the available menu selections.