R356 Controller & Driver
Page 23
Version 1.10
Lin Engineering
3/16/2018
8 Lead Wire Motor Connection (Series Connection)
Be sure to set the drive current to exactly half of the motor’s rated parallel current
rating when using the series connection.
Figure 22: 8 Lead Wire Series Connection
Appendix E
Troubleshooting
USB485 interface card driver not communicating
Reinstall USB485 driver
Disconnect the USB485 from the computer and driver
Go to Windows Device Manager
Uninstall USB485 (RMS Tech…)
Restart computer
Go to
USB485 Driver
Verify the ‘USB485 diver’ folder is in the downloads folder
Plug the USB485 back into the computer, but not the driver
Go to Device Manager, expand Universal Serial Bus controllers
Right Click USB485, Choose ‘Properties’
Select “Driver” tab and choose “Update Driver”
Browse to ‘Downloads’ folder, click USB485 and choose ‘Next’
This should correct any USB485 driver problems.
Hardware Troubleshooting
Carefully re-check all instructions for hardware and wiring diagrams.
Many times problems are related to wiring and/or connector issues.
Technical Support
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Our technical support group is glad to work with you in answering your questions. If
you cannot find the solution to your particular application, or, if for any reason you
need additional technical assistance please contact us.