help with connection driver 2M5042 to DSP

[waltfl]

Hi marco,
I checked the manual for the 2M5042 driver ( see picture)and it says that for 24V there needs to be a curent limiting resistor of 2kohm put inseries with the DSP.
can you explain this please
thanks
walt

[Tech_Marco]

Walt:

You shouldn't use 2M5042 for the K40 as the output current is too high to be used for the K40. The stepper of K40 is 0.6A and 0.8A that's why you driven it very hot. You should go for the 2M415 instead.

By the way, please stick with one post for the same topic but not starting new post unless for other issue

Thanks

Marco

[waltfl]

Hi marco,
thanks for the respond
I was going like you recommended by the manual from tim wehr for the conversion K40 to DSP and he had used this driver. Because I could not find the data for the original stepper.
now the stepper is probably gone because he does not run anymore and I ordered a NEMA KL17H247-168-4B (1/4" dual shaft with a flat) and this should work I hope. I dont wana spend more money on this nightmare.
thanks
walt

Walt:

You shouldn't use 2M5042 for the K40 as the output current is too high to be used for the K40. The stepper of K40 is 0.6A and 0.8A that's why you driven it very hot. You should go for the 2M415 instead.

By the way, please stick with one post for the same topic but not starting new post unless for other issue

Thanks

Marco

[Tech_Marco]

2M5042 (2M542) is a great stepper motor driver. It's the same standard as Leetro. It's just that he output from 2M542 is at least 1.5A while the K40 motor runs 1A or less. Some 42 series may support up to 3A but we can't tell unless you can check the label on the motor. Plus, you may want to set "half" current on the driver. You don't need to go for NEMA 42 as it cost quite a lot. For that motor selling on eBay, I think it's running about $30 or less. I was thining to import some but haven't done it yet. The trip on coming November in China will set me up a visit to some motor supplier. I may bring some motor home.


Marco

[waltfl]

Hi marco
thanks again for the fast reply, yeah with this sch... chinese machines you get no data on the parts, maybe is a good idea to give a help advice to the guys who wana convert this machines.
the motor label sayz DR stepper motor, 17 HW 4410N 03AD-2.
this is the double flansh motor for the Y axis.
I ordwered the NEMA 17 double flansch for $ 22 . the only probleme is that the original motor has a 5mm flansch and the new one a 1/4 inch what means I have to drill the out the coupling half and the pully .
because I can not find a pylly with 20T 1/4 bore for 14mm OD.
this parts the pully's would be god if you could carry them.
thanks again for your help
walt

2M5042 (2M542) is a great stepper motor driver. It's the same standard as Leetro. It's just that he output from 2M542 is at least 1.5A while the K40 motor runs 1A or less. Some 42 series may support up to 3A but we can't tell unless you can check the label on the motor. Plus, you may want to set "half" current on the driver. You don't need to go for NEMA 42 as it cost quite a lot. For that motor selling on eBay, I think it's running about $30 or less. I was thining to import some but haven't done it yet. The trip on coming November in China will set me up a visit to some motor supplier. I may bring some motor home.


Marco

[twehr]

Hi marco
thanks again for the fast reply, yeah with this sch... chinese machines you get no data on the parts, maybe is a good idea to give a help advice to the guys who wana convert this machines.
the motor label sayz DR stepper motor, 17 HW 4410N 03AD-2.
this is the double flansh motor for the Y axis.
I ordwered the NEMA 17 double flansch for $ 22 . the only probleme is that the original motor has a 5mm flansch and the new one a 1/4 inch what means I have to drill the out the coupling half and the pully .
because I can not find a pylly with 20T 1/4 bore for 14mm OD.
this parts the pully's would be god if you could carry them.
thanks again for your help
walt

2M5042 (2M542) is a great stepper motor driver. It's the same standard as Leetro. It's just that he output from 2M542 is at least 1.5A while the K40 motor runs 1A or less. Some 42 series may support up to 3A but we can't tell unless you can check the label on the motor. Plus, you may want to set "half" current on the driver. You don't need to go for NEMA 42 as it cost quite a lot. For that motor selling on eBay, I think it's running about $30 or less. I was thining to import some but haven't done it yet. The trip on coming November in China will set me up a visit to some motor supplier. I may bring some motor home.


Marco

The 2M542s (at least mine) go down to 1 A. I actually ran mine at 1.46 A and never had a problem.

The NEMA 17s work great. That is what I put in my new laser.

Drilling out the coupling should work fine. Or, you can buy 5mm to 1/4" couplings. If you need/want a new pulley, try these https://sdp-si.com/eStore/Direct.asp?GroupID=217 Don't worry about the OD - just get the #teeth and the pitch (.08 - MXL, I suspect) correct.

You called this a "nightmare". That's too bad. I realize it can be a bit overwhelming at times, but the easiest way to handle overwhelm is to break it down to manageable and understandable parts. Then fix them one at a time. Most important is to learn from it all and then help others as they come along. Creating a diamond from a pile of s..t can really be more of a dream than a nightmare.

[waltfl]

hi tim thanks
maybe you can help me out,
I have checked the origional motor there is on a+ and _ 4,9ohm and on B =and_ 1,2ohm but the motor does not turn it just makes this clack and thats it
greetings
walt

Hi marco
thanks again for the fast reply, yeah with this sch... chinese machines you get no data on the parts, maybe is a good idea to give a help advice to the guys who wana convert this machines.
the motor label sayz DR stepper motor, 17 HW 4410N 03AD-2.
this is the double flansh motor for the Y axis.
I ordwered the NEMA 17 double flansch for $ 22 . the only probleme is that the original motor has a 5mm flansch and the new one a 1/4 inch what means I have to drill the out the coupling half and the pully .
because I can not find a pylly with 20T 1/4 bore for 14mm OD.
this parts the pully's would be god if you could carry them.
thanks again for your help
walt

2M5042 (2M542) is a great stepper motor driver. It's the same standard as Leetro. It's just that he output from 2M542 is at least 1.5A while the K40 motor runs 1A or less. Some 42 series may support up to 3A but we can't tell unless you can check the label on the motor. Plus, you may want to set "half" current on the driver. You don't need to go for NEMA 42 as it cost quite a lot. For that motor selling on eBay, I think it's running about $30 or less. I was thining to import some but haven't done it yet. The trip on coming November in China will set me up a visit to some motor supplier. I may bring some motor home.


Marco

The 2M542s (at least mine) go down to 1 A. I actually ran mine at 1.46 A and never had a problem.

The NEMA 17s work great. That is what I put in my new laser.

Drilling out the coupling should work fine. Or, you can buy 5mm to 1/4" couplings. If you need/want a new pulley, try these https://sdp-si.com/eStore/Direct.asp?GroupID=217 Don't worry about the OD - just get the #teeth and the pitch (.08 - MXL, I suspect) correct.

You called this a "nightmare". That's too bad. I realize it can be a bit overwhelming at times, but the easiest way to handle overwhelm is to break it down to manageable and understandable parts. Then fix them one at a time. Most important is to learn from it all and then help others as they come along. Creating a diamond from a pile of s..t can really be more of a dream than a nightmare.

[twehr]

hi tim thanks
maybe you can help me out,
I have checked the origional motor there is on a+ and _ 4,9ohm and on B =and_ 1,2ohm but the motor does not turn it just makes this clack and thats it
greetings
walt

Not sure I am understanding your situation. You mention + and - ohms. Ohm (resistance) is 0 to infinity. So - ohms does not make sense.

When you power up, does the motor lock up and make it hard to move the axis? It should. If it is not, then you don't have your winding pairs of the motor correct. Switch a couple of the wires (one from a with one from b) and see what you get. Like I said, power should lock the motor up.

If it is doing that part correctly, but is "cluncky" when you try to job the head, then your pulse width settings are not right. For 1/8th step, they should be at about 25.4. Set it that way and try.

If I am way off on what you are saying, try describing it again. Or if possible, a quick short narrated video on YouTube would be worth a lot.

[waltfl]

Hi tim
thanks for the respond
maybe a bit different description. the motr did run a couple times to go to the home position, a few seconds after about five times for adjusting the Y home switch it startet screeming and lock up at the position where it was ( in the middle ) also was very hot and since then it only locks and nothing else happen and the driver 2m5042 set to 1. 46a goes on the red LED ( alarm)
the driver ar OK because I try this with the X axis and it works perfect there.
thats why I assume the motor is gone and ordered a new one.
I had read somewhere here in the forum to measure the resistence thats why I did this.
greetings
walt

hi tim thanks
maybe you can help me out,
I have checked the origional motor there is on a+ and _ 4,9ohm and on B =and_ 1,2ohm but the motor does not turn it just makes this clack and thats it
greetings
walt

Not sure I am understanding your situation. You mention + and - ohms. Ohm (resistance) is 0 to infinity. So - ohms does not make sense.

When you power up, does the motor lock up and make it hard to move the axis? It should. If it is not, then you don't have your winding pairs of the motor correct. Switch a couple of the wires (one from a with one from b) and see what you get. Like I said, power should lock the motor up.

If it is doing that part correctly, but is "cluncky" when you try to job the head, then your pulse width settings are not right. For 1/8th step, they should be at about 25.4. Set it that way and try.

If I am way off on what you are saying, try describing it again. Or if possible, a quick short narrated video on YouTube would be worth a lot.

[waltfl]

Hi tim
where can I set the pulswith?
greetings
walt

Hi tim
thanks for the respond
maybe a bit different description. the motr did run a couple times to go to the home position, a few seconds after about five times for adjusting the Y home switch it startet screeming and lock up at the position where it was ( in the middle ) also was very hot and since then it only locks and nothing else happen and the driver 2m5042 set to 1. 46a goes on the red LED ( alarm)
the driver ar OK because I try this with the X axis and it works perfect there.
thats why I assume the motor is gone and ordered a new one.
I had read somewhere here in the forum to measure the resistence thats why I did this.
greetings
walt

hi tim thanks
maybe you can help me out,
I have checked the origional motor there is on a+ and _ 4,9ohm and on B =and_ 1,2ohm but the motor does not turn it just makes this clack and thats it
greetings
walt

Not sure I am understanding your situation. You mention + and - ohms. Ohm (resistance) is 0 to infinity. So - ohms does not make sense.

When you power up, does the motor lock up and make it hard to move the axis? It should. If it is not, then you don't have your winding pairs of the motor correct. Switch a couple of the wires (one from a with one from b) and see what you get. Like I said, power should lock the motor up.

If it is doing that part correctly, but is "cluncky" when you try to job the head, then your pulse width settings are not right. For 1/8th step, they should be at about 25.4. Set it that way and try.

If I am way off on what you are saying, try describing it again. Or if possible, a quick short narrated video on YouTube would be worth a lot.

[twehr]

Hi tim
where can I set the pulswith?
greetings
walt

Go into the System Settings (System Options? not sure how it is labeled) and open the Manufacturer's Parameters. You can set the Pulse Width for each axis.

Please refer to the user's manual as I believe it is there (although not worded very well).

As I said before, for 200 step motors, the pulse width should be someplace about 25.4. Try that. If one of your other axis IS working correctly, then look at what it is set at and use something similar. You can always adjust to calibrate exact motor movement later.

[waltfl]

Hi tim
the probleme is that for the 2012 DSP is no manual and if I go in to the manufacturer settings in lasercut5.2 the only where I can set a puls with is in the laser section.
in the X and Y section is a position for "pulse unit" maybe this is it; it is set to 3.750000 original
I am waiting for the new Y motor should arrive tomorrrow.
greetings
walt

Hi tim
where can I set the pulswith?
greetings
walt

Go into the System Settings (System Options? not sure how it is labeled) and open the Manufacturer's Parameters. You can set the Pulse Width for each axis.

Please refer to the user's manual as I believe it is there (although not worded very well).

As I said before, for 200 step motors, the pulse width should be someplace about 25.4. Try that. If one of your other axis IS working correctly, then look at what it is set at and use something similar. You can always adjust to calibrate exact motor movement later.

[twehr]

Hi tim
the probleme is that for the 2012 DSP is no manual and if I go in to the manufacturer settings in lasercut5.2 the only where I can set a puls with is in the laser section.
in the X and Y section is a position for "pulse unit" maybe this is it; it is set to 3.750000 original
I am waiting for the new Y motor should arrive tomorrrow.
greetings
walt

Hi tim
where can I set the pulswith?
greetings
walt

Go into the System Settings (System Options? not sure how it is labeled) and open the Manufacturer's Parameters. You can set the Pulse Width for each axis.

Please refer to the user's manual as I believe it is there (although not worded very well).

As I said before, for 200 step motors, the pulse width should be someplace about 25.4. Try that. If one of your other axis IS working correctly, then look at what it is set at and use something similar. You can always adjust to calibrate exact motor movement later.

The basic software setup (manufacturer's parameters, etc) is the same as with previous versions (like 4.xx). Download and reead the earlier version manuals - it will help a lot.

Also, you can use my setup instructions for using the DSP with the homebuild Laser 2.x. A lot of it will apply and the screen shots are all the same.

[waltfl]

thanks tim
today I get the new motor then I will try it out.
but in the mean time the screen shots of laser cut 5.2 is not exactly the same as PHcad.
thanks again
walt

Hi tim
the probleme is that for the 2012 DSP is no manual and if I go in to the manufacturer settings in lasercut5.2 the only where I can set a puls with is in the laser section.
in the X and Y section is a position for "pulse unit" maybe this is it; it is set to 3.750000 original
I am waiting for the new Y motor should arrive tomorrrow.
greetings
walt

Hi tim
where can I set the pulswith?
greetings
walt

Go into the System Settings (System Options? not sure how it is labeled) and open the Manufacturer's Parameters. You can set the Pulse Width for each axis.

Please refer to the user's manual as I believe it is there (although not worded very well).

As I said before, for 200 step motors, the pulse width should be someplace about 25.4. Try that. If one of your other axis IS working correctly, then look at what it is set at and use something similar. You can always adjust to calibrate exact motor movement later.

The basic software setup (manufacturer's parameters, etc) is the same as with previous versions (like 4.xx). Download and reead the earlier version manuals - it will help a lot.

Also, you can use my setup instructions for using the DSP with the homebuild Laser 2.x. A lot of it will apply and the screen shots are all the same.

[twehr]

thanks tim
today I get the new motor then I will try it out.
but in the mean time the screen shots of laser cut 5.2 is not exactly the same as PHcad.
thanks again
walt

Pulse Width and Pulse Unit are the same thing. It should be about 25.4 (for 200 step motors which are what you likely have). If you are set at 3.x then that is why your motor is not working correctly.