
68 - Technical Support - Section 9 Microrouter CNC Machine User's Manual
9: Troubleshooting
VR CNC Milling Software Communications Troubleshooting
continued...
5) In the “Machine Properties” window, click the “Communications”
property title. Change the “COM Port” setting to match the
number of the COM port being used by your pc. Note that the
hardware resources ( IRQ. etc.) are those specified in the
Windows Control Panel. The “Baudrate” must be set to read
“19200”. Baudrate is the speed at which data can be transferred
through your COM ports. The “Stop Bits” must be set to read “2”.
Stop Bits are the data signals sent after each data character has
been transferred. Click the [OK] button to save and apply any
changes made to the property listings.
6) Check the LED display status on your Microrouter control card
(The Denstep Motion Control Board). The control card is the
main electrical board in the Microrouter, located in the top left
corner of the electrical panel. For more information, refer to
Section 8 - Machine Electronics. A problem with this card can
cause problems with communications. Look for the LED display
mounted on the main control card. A blinking dot with an L or the
number 8 should be shown. If the LED is not lit, check the
control board fuse. If no display continues to be shown, call
Denford Customer Services for assistance.
7) Check the COM port on your pc is functioning correctly. Consult
your IT person or Computer Support Centre for help with these
issues. Check the COM port settings in Windows by accessing
the Device Manager. Check the com ports enabled and labelled
properly in the computer BIOS. Check the physical COM port
itself functional. For example, Windows and the BIOS may show
that the COM ports are fine, but the port is not seen by any
external devices.
8) When all else fails....
a) Thoroughly check the condition of the RS232 cable. If the
cable is bad, communication will not occur.
b) Try using a different pc to connect to the CNC machine.
c) Check for support on the Denford website (www.denford.com).
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