EL7041 with stepper NEMA17
08 Mar 2018 10:20 #107106
by andypugh
Replied by andypugh on topic EL7041 with stepper NEMA17
You can measure the torque using the pulley, a piece of string and a spring balance.
What is the rated torque? You can apply 5Nm with a small screwdriver (10Nm with a big screwdriver), and a NEMA 17 motor will typically make 0.5Nm.
So is it 10% of the torque you can apply with a screwdriver? If it is, then it is working OK.
What is the rated torque? You can apply 5Nm with a small screwdriver (10Nm with a big screwdriver), and a NEMA 17 motor will typically make 0.5Nm.
So is it 10% of the torque you can apply with a screwdriver? If it is, then it is working OK.
The following user(s) said Thank You: Noal
Please Log in or Create an account to join the conversation.
08 Mar 2018 11:05 #107107
by Noal
Replied by Noal on topic EL7041 with stepper NEMA17
A colleague of mine tried this engine with another drive and it works, has a good torque and an acceptable overheating.
so maybe the problem is that they are badly set parameters or that the drive is not suitable for this stepper but it seems strange to me.
which parameters could influence this actions?
so maybe the problem is that they are badly set parameters or that the drive is not suitable for this stepper but it seems strange to me.
which parameters could influence this actions?
Please Log in or Create an account to join the conversation.
08 Mar 2018 12:50 #107111
by andypugh
Replied by andypugh on topic EL7041 with stepper NEMA17
There is only one setting. That's the current.
If it is getting hot then the current is high
I guess that the driver could be using such a low PWM rate that the torque dips low enough to slip, but that would be a broken drive,
If it is getting hot then the current is high
I guess that the driver could be using such a low PWM rate that the torque dips low enough to slip, but that would be a broken drive,
Please Log in or Create an account to join the conversation.
- Mike_Eitel
-
- Offline
- Platinum Member
-
Less
More
- Posts: 1150
- Thank you received: 184
08 Mar 2018 17:49 #107122
by Mike_Eitel
Replied by Mike_Eitel on topic EL7041 with stepper NEMA17
Have you ever run the stepper with much to high current?
It is possible to demagnetize a motor that way and then you endup with no force!
It is possible to demagnetize a motor that way and then you endup with no force!
Please Log in or Create an account to join the conversation.
Time to create page: 0.062 seconds