ELL7K Linear Stage Evaluation Kit
Chapter 4: Operation
Rev DJanuary 2018
Page 11
4.3.
Frequency Search
Due to load, build tolerances and other mechanical variances, the default resonating frequency of a particular
motor may not be that which delivers best performance. A frequency search can be performed using the Main
GUI panel in the ELLO software, or by using the serial communication line (SEARCHFREQ_MOTORX
message), which offers a way to optimize the operating frequencies for backward and forward movement.
This search can also be performed manually by restoring the factory settings as described in section 4.5.
4.4.
Periodic Cycling of Devices Over Full Range of Travel
Caution
Periodically, devices should be moved over the full range of travel, from one end to the other. This will help
minimize the build up of debris on the track and will prevent the motors digging a groove over the most used
area of contact. Typically, a travel cycle should be performed every 10K operations.
4.5.
Restoring Factory Settings
Factory settings can be restored during the start up (calibration) test as follows:
1. Remove power from the stage.
2. Press and hold the BW button (do not release until item 6).
3. POWER UP
4. WAIT for red led to switch off
5. Press and ho ld the FW button to request a r eload of factory values (do not release until item 7 i s
complete).
6. Release BW to reboot
7. Continue to hold the FW button until the stage stops moving and the red LED switches off, then release.
8. Press the BW button to home the stage.
4.6.
Simultaneous Movement of Devices
If more than one device is connected to the comms bus, movement of the devices can be synchronized. This
can be achieved either by using the handset, or by software. See the protocol document for details on how to
use the ‘ga’ message to synchronize moves. If using the handset, synchronized movement is hard wired, so if
multiple devices are connected, pressing the FWD or BWD buttons will move all devices.
