Hi, I haven't met with handling application but probably the mistake is a wrong calibration your milling tool or/and zero point. How did you do that?
It might be useful to attach some program code and your table tools data
Posts by Aleks_Tarasov
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Yes, there is air cooling. We have HSD spindle "ET65-08" with a range from 3000 to 24000 rpm and maximum frequency 400 Hz. I calculated that a minimal frequency for my HSD Spindle ET65-08 is 50 Hz (f=p*n1/60). You are right that 10 Hz isn't enough. But based on that data from passport I suggest that 350 Hz would not harm anything.
Your idea with ADC sounds good and interesting! I haven't even thought about. Probably, there would be useful to apply Arduino or another microcontroller! I'm glad, because Arduino is my little hobby now! Thanks! -
OK, I'll get to the point, sorry for not following some rules.
- the issue was setting the whole range of a frequency/speed that allowing VFD. Not important what a range, cause it would be a particular case. Let it be for example from 10 Hz to 350 Hz.
- no, there isn't any devices as I am concerned
Anyway, I've figured out from the manual that X1-X4 terminals have settings which allows user to set a step in order to send impulses having added/subtracted to current frequency.
Quote from the manual "When the UP is effective, the frequency increases and when DW is effective, the frequency decreases."
Finally the decision is
- buying an analog output module
- playing with digital input of PLC and multifunctional terminals of VFD
- "using a hand-built R/C circuit and issuing a train of pulses from the output, but unless you're an experienced electronics person it's easy to get wrong and fry something"
I think if someone had other VFD it should be something similar. It is a common view of a question, I hope it will be useful for someone.
Thanks to you, men! -
We have this scheme of wiring buttons for controlling start and stop spindle. Am I right that from it the only free terminal for adjusting speed is X4? If yes so it seems to me that I could only set two values for a speed in one direction. That is for X1 and for X4. Correct me please!
Many thanks in advance -
Thank you as well, panic mode!
As I know there must be a library for WorkVisual for this type of module in order to map outputs. Where can I get it? -
That depends entirely on the VFD. What does the VFD require for speed control? You're going to have to read your VFD's documentation in detail.If the VFD can accept a multi-bit binary input for speed control, then the solution is simple.
If the VFD will only accept analog voltage input, you're more or less out of luck. There is a crude method for generating an analog output by using a hand-built R/C circuit and issuing a train of pulses from the output, but unless you're an experienced electronics person it's easy to get wrong and fry something. Plus it probably wouldn't be very stable.
Thanks for answering!As for our purposes, it would be enough to have at least two or three variants of rpm for spindle.
Could you please explain in details what it means "multi-bit binary input for speed control"? Is it the same as on the screenshots? I just don't catch how can digital input of VFD change frequency. -
Hi there, once again I am addressing a question for you, guys.
I have a robot Agilus 10 KRC4 with variable frequency drive, that is VFD Sunfar E550 and Beckhoff PLC EK1100 with one module of 16-channel digital input& output. There is no analog outputs unfortunately. I attached a photo of inputs for VFD.
Now, I am wondering how can I control my spindle velocity through any command in my program as it implemented in CNC. without an analog module. May I do it via connecting wires to RS+ and RS- with PL? For what purpose X4 and RS inputs is? I know that X4 is a digital but maybe there is a way to put one frequency on it, is there?
Really, appreciate your help -
Hi there! I've recently opened for myself SPLINE as a type of movement. Big thanks to this forum!
And before the upcoming work day, I wanna ask if there is a possibility to change LIN movements generated via Symtech program into SPLINE. To be certain, I ask about those points which appeared in CL-DATA of CAM software. Greatly appreciate any help! -
panic mode, if I use Kuka R2700 Kr120 HA as milling robot with HSD spindle so the value of a mass load doesn't make significant changes in accuracy if it doesn't weigh more than approximately 30 kg(25%)? I just wanna be sure if I get it right. For the time being, I apply default settings in my tool table. Thanks!
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Could you please attach a photo of your's pendant control?
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Many thanks!I'll do it. I contacted with kuka's support service and they confirmed that we have the license for CamRob but an authorised firm forgot to set up it. Now the question is solved! Thanks again for your help!
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Yes, you are right.
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Did u mean this ARCHIVE? No, actually there is no tech package as "camrob". Is it supposed that having Symtech 2.2 we have to possess this package? Is it placed on a separate disk or with Symtech? Thank you for your participation.
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Can it be problems with drivers for the video card?
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Yes. Could you say me where it is possible to look for such a file like you've mentioned before? Actually, I've tried identifying this array by way putting string "DECL REAL CR_PARAMS[8]" before initializing the program but it didn't work. The point is that some of the mistakes disappeared but not all. Could you tell me whether I can ask support services about it?
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Symtech was installed approximately one and a half year ago by authorised third-party in Russia. There was installed "Applications 2.4" addon also with it, unfortunately, most of the commands are incompatible. Is it possible that symtech was installed incorectly?
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I read in Kuka's manual that it is necessary to put *SRC and *DAT files directly into R1/program and *BIN files into a folder located d:\\application_data. But I have no such a folder. Please, help how to apply BIN files generated via SymTech. Thanks!
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Hi! We have KUKA R2700 KR 120 Robot and we've installed Kuka Symtech 2.2.2 with CamRob's bar for creating projects remotely. So I use CL-DATA created by NX Unigraphics for milling paths. But as I generated *SRC and *DAT files by this software using SW 8.3, the control refuses to deal with it. The error is that the name of the var wasn't defined. It appears when I tick off "use CNC parameters" and in SRC files are created "CR_rPARAMS", directly connected with commands within my CL-Data file. On the other side when I try to add commands via Symtech (Spindle on, Feedrate etc.) and use a program without choosing that menu item everything is ok. Thanks for attention. Alex.