# FAQ **URL:** https://forum.cloudray.com/c/co2-laser-cutting-engraving/faq/14.md [Latest](https://forum.cloudray.com/latest.md) · [Categories](https://forum.cloudray.com/categories.md) --- ## [About the FAQ category](https://forum.cloudray.com/t/about-the-faq-category/30)
**Author:** [@Rayner](https://forum.cloudray.com/u/Rayner)\ **Replies:** 0
--- ## [Cutting will cause problems in the picture](https://forum.cloudray.com/t/cutting-will-cause-problems-in-the-picture/297)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 20, 2021, 9:33am UTC](https://forum.cloudray.com/t/cutting-will-cause-problems-in-the-picture/297 "2021-04-20T09:33:05Z")
1.Problem description: 2.Analysis:A part of the light path hits the copper nozzle, and the light path needs to be adjusted. --- ## [Replace a large wattage machine](https://forum.cloudray.com/t/replace-a-large-wattage-machine/292)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 20, 2021, 8:42am UTC](https://forum.cloudray.com/t/replace-a-large-wattage-machine/292 "2021-04-20T08:42:33Z")
1.Problem description:If a 150W machine is upgraded to a 300W machine, besides the laser tube, power supply, and chiller, are there other parts that need to be replaced? 2.Analysis:No need to replace. Mainly laser tube,… --- ## [Ruida controller can not reset automaticlly when power on](https://forum.cloudray.com/t/ruida-controller-can-not-reset-automaticlly-when-power-on/288)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 19, 2021, 6:20am UTC](https://forum.cloudray.com/t/ruida-controller-can-not-reset-automaticlly-when-power-on/288 "2021-04-19T06:20:01Z")
1.Problem description:RDC6432, every time you restart the machine, you must manually enter: Menu =\> Function Settings =\> Axis Reset =\> XY Axis Reset. How to make the Ruida controller automatically reset when it is turned… --- ## [Z axis does not work in RDC6445G](https://forum.cloudray.com/t/z-axis-does-not-work-in-rdc6445g/287)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 19, 2021, 3:18am UTC](https://forum.cloudray.com/t/z-axis-does-not-work-in-rdc6445g/287 "2021-04-19T03:18:09Z")
1.Problem description:Ruida RDC6445G controller. Except for the Z axis, everything else seems to work. When the up and down arrow keys are pressed, the table will not move. The stepper motor makes noise, but the table do… --- ## [I bought 6442S instead of 6445G, what should I do if the XY axis direction is reversed](https://forum.cloudray.com/t/i-bought-6442s-instead-of-6445g-what-should-i-do-if-the-xy-axis-direction-is-reversed/285)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 19, 2021, 2:49am UTC](https://forum.cloudray.com/t/i-bought-6442s-instead-of-6445g-what-should-i-do-if-the-xy-axis-direction-is-reversed/285 "2021-04-19T02:49:53Z")
Change the polarity of the direction in the vendor settings --- ## [Password of Ruida mainboard](https://forum.cloudray.com/t/password-of-ruida-mainboard/284)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 19, 2021, 2:46am UTC](https://forum.cloudray.com/t/password-of-ruida-mainboard/284 "2021-04-19T02:46:03Z")
Factory password:RD8888 Restore factory settings password：HF8888 --- ## [Can the 6445 panel be used with the 6442S motherboard](https://forum.cloudray.com/t/can-the-6445-panel-be-used-with-the-6442s-motherboard/279)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 17, 2021, 1:27am UTC](https://forum.cloudray.com/t/can-the-6445-panel-be-used-with-the-6442s-motherboard/279 "2021-04-17T01:27:26Z")
No.The two panels do not match and cannot be used together. --- ## [HYZ100 power supply is connected with 6445G, why there is no display on the panel](https://forum.cloudray.com/t/hyz100-power-supply-is-connected-with-6445g-why-there-is-no-display-on-the-panel/278)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 17, 2021, 1:18am UTC](https://forum.cloudray.com/t/hyz100-power-supply-is-connected-with-6445g-why-there-is-no-display-on-the-panel/278 "2021-04-17T01:18:38Z")
Solution:Turn on the setting in the production parameters. --- ## [The X axis of the main control board RDLC320-A does not work, how to troubleshoot](https://forum.cloudray.com/t/the-x-axis-of-the-main-control-board-rdlc320-a-does-not-work-how-to-troubleshoot/277)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 16, 2021, 8:57am UTC](https://forum.cloudray.com/t/the-x-axis-of-the-main-control-board-rdlc320-a-does-not-work-how-to-troubleshoot/277 "2021-04-16T08:57:04Z")
If you can ensure that there is no problem with the wiring, try changing the Y-axis connection on the drive to the X-axis. If the Y-axis motor can work after the change, it means that the X-axis stepper drive or the moto… --- ## [How to prove that the 24v port of the CN1 interface of the controller can work normally](https://forum.cloudray.com/t/how-to-prove-that-the-24v-port-of-the-cn1-interface-of-the-controller-can-work-normally/276)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 16, 2021, 8:43am UTC](https://forum.cloudray.com/t/how-to-prove-that-the-24v-port-of-the-cn1-interface-of-the-controller-can-work-normally/276 "2021-04-16T08:43:59Z")
Use a multimeter to check whether there is DC 24V between pin 1 and pin 6 of the CN1 interface.If there is, it works normally, otherwise it is abnormal. --- ## [The L and P indicators on the power supply are both off. Is it broken](https://forum.cloudray.com/t/the-l-and-p-indicators-on-the-power-supply-are-both-off-is-it-broken/273)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 16, 2021, 7:26am UTC](https://forum.cloudray.com/t/the-l-and-p-indicators-on-the-power-supply-are-both-off-is-it-broken/273 "2021-04-16T07:26:46Z")
P is for water protection and needs to be always on normally; L is for laser when it emits light, but not normally; if you need to work normally to emit light, you need to ensure that the P light is always on (short-circ… --- ## [MYJG150W, everything is normal, all connections are correct, but if you try to make a complete grating engraving, even if the power is reduced to a minimum, it will become too deep and can only be cut](https://forum.cloudray.com/t/myjg150w-everything-is-normal-all-connections-are-correct-but-if-you-try-to-make-a-complete-grating-engraving-even-if-the-power-is-reduced-to-a-minimum-it-will-become-too-deep-and-can-only-be-cut/272)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 16, 2021, 6:37am UTC](https://forum.cloudray.com/t/myjg150w-everything-is-normal-all-connections-are-correct-but-if-you-try-to-make-a-complete-grating-engraving-even-if-the-power-is-reduced-to-a-minimum-it-will-become-too-deep-and-can-only-be-cut/272 "2021-04-16T06:37:42Z")
Lower the maximum energy and minimum energy of the laser energy a bit. --- ## [The power supply device makes a huge noise and malfunctions and causes the laser to emit (pulse) by itself, which is very dangerous. It can also work when the power is turned on. Power DY13](https://forum.cloudray.com/t/the-power-supply-device-makes-a-huge-noise-and-malfunctions-and-causes-the-laser-to-emit-pulse-by-itself-which-is-very-dangerous-it-can-also-work-when-the-power-is-turned-on-power-dy13/271)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 16, 2021, 6:32am UTC](https://forum.cloudray.com/t/the-power-supply-device-makes-a-huge-noise-and-malfunctions-and-causes-the-laser-to-emit-pulse-by-itself-which-is-very-dangerous-it-can-also-work-when-the-power-is-turned-on-power-dy13/271 "2021-04-16T06:32:13Z")
The laser power supply is making noise (maybe the fan has touched the inner wire). Is the laser power supply automatically emitting light when the machine is not moving? You can try to unplug the laser port terminal on t… --- ## [Continuous discharge of power supply](https://forum.cloudray.com/t/continuous-discharge-of-power-supply/270)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 16, 2021, 6:24am UTC](https://forum.cloudray.com/t/continuous-discharge-of-power-supply/270 "2021-04-16T06:24:22Z")
1.Problem description:After installing the new PSU（ power supply unit）on my 50 watt laser, the test pulse works well. However,when I turn the master power switch to the off position, the laser discharges. There is no arc… --- ## [Need a laser tube in which a transparent window is installed instead of a resonator mirror](https://forum.cloudray.com/t/need-a-laser-tube-in-which-a-transparent-window-is-installed-instead-of-a-resonator-mirror/269)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 16, 2021, 6:21am UTC](https://forum.cloudray.com/t/need-a-laser-tube-in-which-a-transparent-window-is-installed-instead-of-a-resonator-mirror/269 "2021-04-16T06:21:33Z")
What is needed is a CO2 glass tube, only the RF tube has a resonant cavity. --- ## [The laser tube emits pink light, no output, and it is impossible to mark the paper in front of the light outlet. Is this laser tube broken?](https://forum.cloudray.com/t/the-laser-tube-emits-pink-light-no-output-and-it-is-impossible-to-mark-the-paper-in-front-of-the-light-outlet-is-this-laser-tube-broken/268)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 16, 2021, 5:20am UTC](https://forum.cloudray.com/t/the-laser-tube-emits-pink-light-no-output-and-it-is-impossible-to-mark-the-paper-in-front-of-the-light-outlet-is-this-laser-tube-broken/268 "2021-04-16T05:20:42Z")
1.Solution:Replace with clean water and test again; try to adjust the power supply current to meet the working current requirements of the laser tube of this specification. If the laser tube does not change after adjustm… --- ## [Low frequency use of laser tubes in cold areas](https://forum.cloudray.com/t/low-frequency-use-of-laser-tubes-in-cold-areas/267)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 16, 2021, 5:16am UTC](https://forum.cloudray.com/t/low-frequency-use-of-laser-tubes-in-cold-areas/267 "2021-04-16T05:16:43Z")
1.Problem description:The normal temperature is below zero, and the laser tube is used every half a month. Is it necessary to add antifreeze? If necessary, how much should be added? 2.Solution:If you don’t use it freque… --- ## [The laser is not engraved, but the laser beam can be seen on the back. How can I solve it?](https://forum.cloudray.com/t/the-laser-is-not-engraved-but-the-laser-beam-can-be-seen-on-the-back-how-can-i-solve-it/266)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 16, 2021, 5:08am UTC](https://forum.cloudray.com/t/the-laser-is-not-engraved-but-the-laser-beam-can-be-seen-on-the-back-how-can-i-solve-it/266 "2021-04-16T05:08:01Z")
Consider the problem of the optical path, whether the optical path has shifted. Test whether there is laser output from the laser tube light outlet (can use paper shell acrylic and other materials), if there is no laser … --- ## [CR35 laser tube light flickers very frequently](https://forum.cloudray.com/t/cr35-laser-tube-light-flickers-very-frequently/265)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 16, 2021, 5:06am UTC](https://forum.cloudray.com/t/cr35-laser-tube-light-flickers-very-frequently/265 "2021-04-16T05:06:00Z")
1.Problem description:After using the CR35 laser tube for several times, it was concluded that the work was stopped, and the engraving was still continuing, but the light flickered very frequently, and the current situat… --- ## [Don't know how to encrypt the motherboard](https://forum.cloudray.com/t/dont-know-how-to-encrypt-the-motherboard/221)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 5, 2021, 9:36am UTC](https://forum.cloudray.com/t/dont-know-how-to-encrypt-the-motherboard/221 "2021-04-05T09:36:49Z")
In the setting of the operating software menu, enter the factory password RD8888 in “Password Setting”: A. Enter to change the “manufacturer authority”, first enter the old password RD8888, and then enter the new passwo… --- ## [Invalid layer sort](https://forum.cloudray.com/t/invalid-layer-sort/220)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 5, 2021, 9:31am UTC](https://forum.cloudray.com/t/invalid-layer-sort/220 "2021-04-05T09:31:02Z")
1.Possible cause analysis of failure:Optimizing the path in the processing by layer output is unchecked. 2.Solution:Check this option. --- ## [Setting the cutting point is invalid](https://forum.cloudray.com/t/setting-the-cutting-point-is-invalid/219)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 5, 2021, 9:27am UTC](https://forum.cloudray.com/t/setting-the-cutting-point-is-invalid/219 "2021-04-05T09:27:05Z")
1.Possible cause analysis of failure:Tick ​​"Backlash Compensation Optimization" and “Path Optimization”. 2.Solution:Cancel the tick. --- ## [Invalid process number arrangement](https://forum.cloudray.com/t/invalid-process-number-arrangement/218)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 5, 2021, 9:22am UTC](https://forum.cloudray.com/t/invalid-process-number-arrangement/218 "2021-04-05T09:22:08Z")
1.Possible cause analysis of failure:Tick ​​"Path Optimization". 2.Solution:Canel the tick. --- ## [Z axis is not working properly](https://forum.cloudray.com/t/z-axis-is-not-working-properly/217)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 5, 2021, 9:18am UTC](https://forum.cloudray.com/t/z-axis-is-not-working-properly/217 "2021-04-05T09:18:30Z")
1.Possible cause analysis of failure:The manufacturer’s parameter setting is wrong (the direction of the step width is wrong). 2.Solution:Reset the paremeters. --- ## [The laser light is weak and cannot be controlled](https://forum.cloudray.com/t/the-laser-light-is-weak-and-cannot-be-controlled/216)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 5, 2021, 9:15am UTC](https://forum.cloudray.com/t/the-laser-light-is-weak-and-cannot-be-controlled/216 "2021-04-05T09:15:57Z")
1.Possible cause analysis of faliure:Laser simulation voltage is too large. 2.Solution:When the cutting power is at 90%, readjust UR1 Analog voltage of UR2 (about 4.5V). --- ## [Dislocation of cutting graphics](https://forum.cloudray.com/t/dislocation-of-cutting-graphics/215)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 5, 2021, 9:14am UTC](https://forum.cloudray.com/t/dislocation-of-cutting-graphics/215 "2021-04-05T09:14:25Z")
1.Possible cause analysis of failure: a. The machine has backlash b. Incorrect step distance c. The rising edge of the pulse signal of the motor driver is valid, the falling edge is valid, and the matching connection … --- ## [Can't read the USB flash drive](https://forum.cloudray.com/t/cant-read-the-usb-flash-drive/214)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 5, 2021, 9:10am UTC](https://forum.cloudray.com/t/cant-read-the-usb-flash-drive/214 "2021-04-05T09:10:13Z")
1.Possible cause analysis of failure: a. Check if there is a file in a supported format in the U disk Pieces b. Is the U disk damaged? 2.Solution:Download the file in the corresponding format (vector format Formula:… --- ## [The time on the control panel is wrong](https://forum.cloudray.com/t/the-time-on-the-control-panel-is-wrong/213)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 5, 2021, 9:07am UTC](https://forum.cloudray.com/t/the-time-on-the-control-panel-is-wrong/213 "2021-04-05T09:07:42Z")
1.Possible cause analysis of failure: Insufficient charging of time chip. 2.Solution:Rewrite time and then charge for more than 4 hours. --- ## [No display on control panel](https://forum.cloudray.com/t/no-display-on-control-panel/212)
**Author:** [@Technician](https://forum.cloudray.com/u/Technician)\ **Replies:** 0\ **Last updated:** [April 5, 2021, 8:48am UTC](https://forum.cloudray.com/t/no-display-on-control-panel/212 "2021-04-05T08:48:23Z")
1.Possible cause analysis of failure:The MCU program is destroyed. 2.Solution:Reburn the MCU. [Next page](https://forum.cloudray.com/c/co2-laser-cutting-engraving/faq/14.md?page=1)