Maximum encoder speed?
06 Feb 2018 09:20 #105482
by vadoch
Maximum encoder speed? was created by vadoch
Hello. First of all, sorry for my not good English
Recently I maked and installed rotary sensor with 80 positions (80 holes with a diameter of 2.5 mm)
The encoder has those parameters:
Datasheet www.mouser.com/ds/2/307/EE_SX138_1010-8837.pdf
My problem is that it can not measure more than 200 revolutions, and I do not know why this happens.
I connected the sensor in parallel to the index and phaseA, and set in the settings of 80 cycles per revolution. Maybe it's because I do not have a separate index sensor?
In what else could be the reason in your opinion? Any ideas are welcome
Recently I maked and installed rotary sensor with 80 positions (80 holes with a diameter of 2.5 mm)
The encoder has those parameters:
Datasheet www.mouser.com/ds/2/307/EE_SX138_1010-8837.pdf
My problem is that it can not measure more than 200 revolutions, and I do not know why this happens.
I connected the sensor in parallel to the index and phaseA, and set in the settings of 80 cycles per revolution. Maybe it's because I do not have a separate index sensor?
In what else could be the reason in your opinion? Any ideas are welcome
Please Log in or Create an account to join the conversation.
06 Feb 2018 13:03 #105486
by PCW
Replied by PCW on topic Maximum encoder speed?
I would take a look at the "A" signal with halscope to debug this
You do need a separate index signal for threading and tapping
You do need a separate index signal for threading and tapping
Please Log in or Create an account to join the conversation.
- Mike_Eitel
- Offline
- Platinum Member
Less
More
- Posts: 1150
- Thank you received: 184
06 Feb 2018 17:17 #105498
by Mike_Eitel
Replied by Mike_Eitel on topic Maximum encoder speed?
Sometimes optocoppler are not very fast.
Please Log in or Create an account to join the conversation.
- tommylight
- Away
- Moderator
Less
More
- Posts: 19011
- Thank you received: 6371
07 Feb 2018 02:07 #105516
by tommylight
Replied by tommylight on topic Maximum encoder speed?
And that type of sensor has to be fully covered.
Please Log in or Create an account to join the conversation.
- verticalperformance
- Offline
- Senior Member
Less
More
- Posts: 59
- Thank you received: 14
07 Feb 2018 09:47 - 26 Jul 2019 08:52 #105521
by verticalperformance
Replied by verticalperformance on topic Maximum encoder speed?
I'm using a similar disk, with 60 slots and it works fine up to 3000RPM (max of my spindle) thru the parport.
The only issue I had was that I made it from blue acyrilic, which seemed to be transparent to infra red. Spray of black paint fixed it. The other sensor you can see is the standard sherline sensor, which I'm using for the index pulse (the white tape on the disk!)
Sensor is exposed as seen in pic. Datasheet attached.
au.rs-online.com/web/p/slotted-optical-s...es/0304560/?sra=pstk
The only issue I had was that I made it from blue acyrilic, which seemed to be transparent to infra red. Spray of black paint fixed it. The other sensor you can see is the standard sherline sensor, which I'm using for the index pulse (the white tape on the disk!)
Sensor is exposed as seen in pic. Datasheet attached.
au.rs-online.com/web/p/slotted-optical-s...es/0304560/?sra=pstk
Last edit: 26 Jul 2019 08:52 by verticalperformance.
Please Log in or Create an account to join the conversation.
- Dinuka_Shehan
- Offline
- Platinum Member
Less
More
- Posts: 346
- Thank you received: 26
23 Jul 2019 15:53 - 23 Jul 2019 15:55 #140304
by Dinuka_Shehan
Replied by Dinuka_Shehan on topic Maximum encoder speed?
Last edit: 23 Jul 2019 15:55 by Dinuka_Shehan.
Please Log in or Create an account to join the conversation.
- Dinuka_Shehan
- Offline
- Platinum Member
Less
More
- Posts: 346
- Thank you received: 26
23 Jul 2019 15:57 #140305
by Dinuka_Shehan
Replied by Dinuka_Shehan on topic Maximum encoder speed?
How to look hal scope?
Please Log in or Create an account to join the conversation.
- tommylight
- Away
- Moderator
Less
More
- Posts: 19011
- Thank you received: 6371
23 Jul 2019 16:10 #140311
by tommylight
Replied by tommylight on topic Maximum encoder speed?
File>hal scope>ok>click on one of the numbers at the bottom left>scroll to chose what you want to monitor>press roll and auto at the top right side of the screen> magic!
The following user(s) said Thank You: Dinuka_Shehan
Please Log in or Create an account to join the conversation.
08 May 2022 16:29 #242311
by virencq
Replied by virencq on topic Maximum encoder speed?
Would you mind sharing your .hal file for reference!I'm using a similar disk, with 60 slots and it works fine up to 3000RPM (max of my spindle) thru the parport.
The only issue I had was that I made it from blue acyrilic, which seemed to be transparent to infra red. Spray of black paint fixed it. The other sensor you can see is the standard sherline sensor, which I'm using for the index pulse (the white tape on the disk!)
Sensor is exposed as seen in pic. Datasheet attached.
au.rs-online.com/web/p/slotted-optical-s...es/0304560/?sra=pstk
Please Log in or Create an account to join the conversation.
- verticalperformance
- Offline
- Senior Member
Less
More
- Posts: 59
- Thank you received: 14
23 Jun 2022 11:07 #245666
by verticalperformance
Replied by verticalperformance on topic Maximum encoder speed?
Find attached hal and ini files. Sorry about the REALLY slow response to this message!
Attachments:
Please Log in or Create an account to join the conversation.
Moderators: piasdom
Time to create page: 0.134 seconds