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Author Topic: Spindle/ C Axis using CSMIO/IP-A  (Read 1000 times)

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Re: Spindle/ C Axis using CSMIO/IP-A
« Reply #20 on: October 16, 2018, 04:04:17 PM »
Hi Craig

Thanks for your response.

The encoder is 20 bit I believe. (See screenshot)

 The downside is that the CSMIO has limited signaling speed, and in any event signaling over 500kHz between controller
and servo drive is DIFFICULT at best there is therefore a practical limit to the resolution beyond which the signaling speed limits the rotational speed.


If my calculations are correct the kernel speed should not be an issue at whatever resolution considering the rpm of the C axis will not need to exceed anything over 100rpm. 

If P1-46 does adjust the encoder resolution which has a max value of 40,000.  Using this ridiculously high resolution. 40000 x 4 x 100/60 = Kernel speed of 266khz. To get the resolution I require would only need 10,240 lines/rev. So 10,240 x 4 x 100/60 = Kernel speed 68khz.
Please correct me if I'm wrong.

I don't follow you on the zero error window.

Mick

Re: Spindle/ C Axis using CSMIO/IP-A
« Reply #21 on: October 30, 2018, 02:18:37 PM »
Can anyone assist on this please.

Both X and Z axis all working great. Power up the following day and Z-axis servo drive faults out as before. Five dashes on the HDI and the drive locked out. Exactly the same fault codes as the previous drive. This is the second drive that I have had to replace. Luckily I haven't had to pay and have just been exchanged.

Checked my input voltage from the mains which is around 252v most of the time. The specs in the manual states a maximum voltage of 230v +-10%. I am a little concerned that my mains voltage is on the limits of what is recommended for the drive. Could this be causing the issue? Should I use a step-down transformer to reduce the input voltage to 230v?

Mick
Re: Spindle/ C Axis using CSMIO/IP-A
« Reply #22 on: November 11, 2018, 09:07:23 AM »
Hi All

Long time no speak. Lol
 
Can you give me your thoughts on the schematic from the Lexium manual with regards to protecting the digital outputs Do1-Do5 against damage from inductive loads. I want to wire Do5 output to disable the drive in the event of a servo fault. I am using logic type 2 with an external power supply. My idea was to break the 24v supply that enables the drive with output Do5. The manual mentions protecting the outputs from inductive loads. Would this apply to this situation? Or can I simply wire Do5 directly with 24v?

Appreciate your thoughts on this.       

Thanks
Mick