User manual

RP6 ROBOT SYSTEM - APPENDIX
3. While moving, the robot repeatedly generates resets and halts the pro-
gram!
● The batteries do not provide the system with enough power!
● The batteries are malfunctioning (poor quality or too old) and causing
voltage drops during operations, which will automatically result in a reset.
Please use fresh batteries for your robot in this case and try again!
● Batteries are not inserted tightly in the battery compartment or the power
wiring system has loose contacts somewhere.
● An expansion module may have caused an overload!
4. The RobotLoader fails to connect to the robot!
● The USB cable or the 10pin flat cable may have loose contacts (please care-
fully wobble the USB plug a bit!).
● You selected an incorrect port in the RobotLoader Software.
● The port is used by another application and therefore it is not shown in the
port list. Please close all applications, which may be using USB Ports or USB-
serial converters. Subsequently refresh the RobotLoader's port list and re-
start the RobotLoader!
● You may have activated “Invert Reset Pin” in the RobotLoader's Preferences
dialog – deactivate this option!
● The robot has been switched off or the batteries are empty/nearly empty.
● The cable or the plug have been damaged – which is rather uncommon, but
may happen with high mechanical stress.
5. RobotLoader does not show any Ports!
● Check if the port is used from another application. The Ports are only shown
if not used by any other application – use “refresh portlist” menu item to up-
date the list.
● If you are using Ubuntu 7.x or higher you can try to deinstall the “brltty”
and “brltty-X11” applications with Synaptic. This is only used for Braille Dis-
plays, but can automatically take over any serial port no matter what it is in-
tended for.
● On Linux System in general you may have to add your use account to the
groups “uucp” and “lock”. Use the tools of your distribution for that, or edit
the file “/etc/groups” or “etc/group”. You need to use your root account.
Enter your username in the file at the entries: „lock:x:53:username“ and
„uucp:x:14:username“ or add it seperated by comma , at the end. If there
is no such entry, create it. Then you have to set write/read permissions as
root. Do „chmod 777 /dev/ttyUSB0“ if the USB Interface is named like this.
Then just login again or reboot the PC – now it should work.
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