Compressed Air Does Not Come Out; The Computer Shut Down - Roland DWX-50 Setup & Maintenance Manual

Is the connection method correct when connecting multiple units?
The connection method may be incorrect when connecting more than one machine. Confirm the correct
method.
 P. 41, "Connecting Multiple Units"
Is the ERROR LED flashes rapidly?
An emergency stop occurred because a serious error was detected. Resuming operation is not possible. A
description of the error is displayed in VPanel. Switch off the power to quit the operation, eliminate the cause,
then redo the operation from the beginning. If the emergency stops continue even after eliminating the cause,
contact your authorized Roland DG Corp. dealer.
 P. 40, "How to View the Online Help," "Responding to an Error Message" in "DWX-50 VPanel Guide (electronic
-format)."
Is the ERROR LED flashes slowly?
Operation was paused because an error was detected. Check the displayed message and press the operation
button of the machine long to clear the error.
 P. 40, "How to View the Online Help," "Responding to an Error Message" in "DWX-50 VPanel Guide (electronic-
format)."

Compressed air does not come out.

Is any of the operations which need compressed air being performed?
Compressed air is supplied only when the spindle is rotating or when the tool is replaced.
Is the pressure of the regulator set correctly?
If the pressure setting of the regulator is "0," compressed air is not supplied.
 P. 36, "Preparing the Regulator"
Is the knob at the bottom of the regulator open?
If the knob at the bottom of the regulator is open, compressed air flows out.
 P. 51, "Care and Maintenance of the Regulator"

The computer shut down.

Is a machine with a same ID connected to the computer?
When more than one machine is connected to the computer, if machines with a same ID are connected at
the same time, the computer might shut down. If the computer shuts down, turn off the power of all the con-
nected machines and disconnect the USB cables from the computer. Next, restart the computer, and then
start VPanel. If VPanel does not start, install it again. Then, make the setting again in a way that a same ID is
not assigned to more than one machine.
 P. 39, "Installing and Setting Up VPanel," p. 41, "Connecting Multiple Unit"
What to Do If...
Chapter 3 Appendix 55