68 Bend-Tech Dragon
Troubleshooting Guide
Mach3
09
10.16 Diagnosing Sensor, Cable, and Control Box Problems
If an Axis on the Dragon is not homing properly, it is possible for the operator to diagnose the
problem using Mach3. Mach3 can be used to determine if there is a cable, sensor, or Control
Box issue.
10.16.1 Diagnosing a Sensor Issue
Diagnose a sensor issue using Mach3 to monitor the Input Signals in the Diagnostics interface.
If an Axis is not homing properly, swap cables to determine if it is a sensor, cable, or control
box issue. For example if the A-Axis (Horizontal Axis on the Toolhead) is not homing properly,
follow the troubleshooting process to determine the issue.
Observe which limits are being triggered in Mach3 (for the A-Axis this will be the M4-Limit and
M4Home).
10.16.2 Checking the Control Box
To eliminate the Control Box as the issue, move the A+ sensor cable to the A- port on the
Control Box, and move the A- sensor to the A+ port on the control box.
Swapping the cables at the Control Box should change the Input Signals to Mach3.
If the M4--Limit and M4Home remain triggered the signal has not followed the cables. This
indicates there is a problem with the Control Box.
In this case the Control Box is communicating properly with Mach3 and there is a problem with
a cable or sensor.
10.16.3 Checking Sensors
Important
Sensor cables can be swapped without powering down the Dragon. However,
Swap the A- and A+ sensor cables back to their designated input ports on the Control Box.
Swap the A- cable to the A+ sensor on the Toolhead.
Swap the A+ cable to the A- sensor on the Toolhead.
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