What do the Red LED Lights on the Ruida Controller Mean for Nova and Odin Lasers

What do the Red LED Lights on the Ruida Controller Mean for Nova and Odin Lasers

Preface: This article covers what the Red LED Lights on the Ruida controller mean and some basic information about them. Just because you see a red light on, off or blinking, it does not necessarily mean that there is an issue.


Red Led Lights on Controller:



What do  the Red LED Lights Each Mean:

LED1 - LmtX-

This is the X axis endstop input. This LED will be illuminated Red if the controller is receiving the X axis Endstop input. If the LED is illuminated but the laser head is not to the Left in the home position then you may have an issue with the X axis endstop. X and Y Endstop Tests

LED2 - LmtX+

Not used on the Nova and Odin series machines. Please email support@thunderlaserusa.com if this LED is illuminated

LED3- LmtY-

This is the Y axis endstop input. This LED will be illuminated Red if the controller is receiving the Y axis Endstop input. If the LED is illuminated but the laser head is not to the Back in the home position then you may have an issue with the Y axis endstop. X and Y Endstop Tests

LED4- LmtY+

Not used on the Nova and Odin series machines. Please email support@thunderlaserusa.com if this LED is illuminated

LED5- LmtZ-

This is the Z axis upper endstop\AutoFocus eye input. This LED will be illuminated Red if the controller is receiving the Z axis upper endstop\AutoFocus eye input. If the LED is illuminated but the honeycomb is not to the most upper position (or material, head, object blocking the eyes) then you may have an issue with the Z axis endstop\Autofocus Eyes. Testing Z Axis Endstops and Z Axis Honeycomb Bed will not Raise or GO UP or only Goes Down until it reached the bottom

LED6- LmtZ+

This is the Z axis lower endstop. This LED will be illuminated Red if the controller is receiving the Z axis lower endstop. If the LED is illuminated but the honeycomb is not to the lower most position then you may have an issue with the Z axis lower endstop. The protection for ZLimit- only occurs if the sensor is activated while the Honeycomb is being jogged down so a stuck sensor will not prevent the bed from lowering to the mechanical limit. Testing Z Axis Endstops

LED7- Ulmt-

Not used on the Nova and Odin series machines. Please email support@thunderlaserusa.com if this LED is illuminated. For the Bolt Series machines, this is the AF sensor  that is activated by the plunger. The LED should be on when the plunger is not pressed and then off when the plunger is pressed.

LED8- Ulmt+

Not used on the Nova and Odin series machines. Please email support@thunderlaserusa.com if this LED is illuminated

LED9 - WP1

Water Protection input from the Chiller. This LED should be illuminated if your chiller is on, not alarming and connected. Without this LED, you will get a water protect error. Alarm message of LCD panel-Water error and Chiller Alarm signal and Cable Troubleshooting guide for Water Protect Error

Not used on the Odin series machines. Please email support@thunderlaserusa.com if this LED is illuminated

LED10- WP2

Not used on the Nova and Odin series machines. Please email support@thunderlaserusa.com if this LED is illuminated

If you have swapped to using the Channel 2 output, then you may have this LED instead of LED9

LED11 - Act

      Activity light, should blink when the controller is receiving information from a data connection

LED12 - Link

      More information to come

LED13- Err

Error LED. The controller has and needs troubleshooting. Please email support@thunderlaserusa.com

LED14 - Run

This led should blink when the controller is powered up and running.

LED15 +5V

Should be illuminated when the controller is on else the 5V output has failed.


    • Related Articles

    • Nova Series Users Manual

      Note that the manual is Windows and RDworks centric due to being the GLOBAL manual. Thunder Laser USA has compiled information on Lightburn, Windows and MacOS in this knowledgebase that should be considered. For Thunder Laser USA support please email ...

    • Odin Series User Manual

      Please see attached

    • Hard Limit Prot Error Message on Ruida HMI

      Preface: This article covers the troubleshooting steps related to the error message "Hard Limit Prot" on the ruida controller screen The message on the screen: What causes this error message: The four end stop switches for X-, Y-, and Z+/- can cause ...

    • Nova Series: Testing Z Axis Endstops and AutoFocus Eyes

      Preface: This article covers the steps to check the basic functions of the Z Axis endstops on a Thunder Laser Nova Series machine Quickstart Video: Complete Guide: Background: The Z axis is the only axis to use multiple endstops on your thunder ...

    • Nova and Nova Plus Series X and Y Endstop Tests, Adjustment and Replacement

      Preface: The information below will cover testing the X and Y endstops to troubleshoot X or Y axis motion issues on your Thunder Laser Nova Series machine. This article includes where to source replacement endstops and additional resources are linked ...
    If you are a Thunder Laser USA client and still need Technical Support after exhausting the resources in the Knowledge Base, simply email support@thunderlaserusa.com and the Technical Support Team will promptly assist you! You can also use the form here.

      Information contained in this Knowledgebase, on this page, in this or any other  Article etc. is the property of Thunder Laser USA and shall not be copied, re-used, sold etc. Do not copy, distribute, or reproduce without express written permission from Thunder Laser USA.