Safely connect DM2282 Stepper Driver with NEMA42 Motor


The following is further work relating to my original experiments in this thread.

For an experiment I am conducting I have purchased a DM2282 Drive and a NEMA 42 motor.
What I want to do is to power and run the motor at a CONSTANT speed, preferably as slow as possible (very low RPM).

I have several resources I’ve checked for the connections and wiring such as:
Driver Manual

and images like the one attached to the post.

Since I am not an engineer and my knowledge of circuits and electronics is almost zero, I am worried that my chances of burning either the motor or the driver are quite high on first trial… :/

In order to avoid this, I would love to understand what I can and cannot do:

1) Can I power the DM2282 with a wall CNC power supply directly? a regular 220-240V that is?
This tutorial powers it with a separate 24V power supply.. I’m wondering if I need to buy that as well or not.

2) Like the picture attached (which I found online), can I attach the system in the following sequence:

Power Supply –> DM2282–> NEMA 42–> Arduino –> USB 5v

or do I need some power control / resistors or a way to prevent things from exploding/burning up? I realize the driver should have most of these mechanisms built-in…

3) I could not really understand from the driver pdf, which are the recommended power settings for this specific driver.
Any help on these issues would be appreciated :)

Thank you and again apologies for the limited knowledge I come with to this issue.

カテゴリー: 未分類 | 投稿者zuimeikoud 19:34 | コメントをどうぞ

Benefits of pancake stepper motor construction

In addition to axial construction, pancake stepper motors have two other unique features: an ironless core and lack of a commutator. These construction principles give pancake motors several performance advantages over conventional cylindrical motors. First, because the armature contains no iron, there is no cogging effect, which is traditionally caused by the magnets in the stator attempting to align themselves with the iron in the rotor. Cogging makes it nearly impossible for conventional motors to achieve smooth motion, and pancake motors are the only motor type with no cogging or torque ripple.

pancake motors

Also, no iron means minimal inductance and no stored energy to be dissipated during commutation, so there’s no arcing of the brushes. Brush wear is a significant drawback to traditional brushed motors, but with no arcing, brush wear is greatly reduced and brush life is improved in pancake motors.

The low inductance of pancake designs also means that they have low electrical time constants, allowing current to flow very quickly into the armature for virtually instant torque production. Peak torque production is also higher in pancake motors due to their lack of iron. In conventional iron core motors, the magnetic field of the armature can demagnetize the permanent magnets, so peak current (and, therefore, peak torque) is limited to just 2 to 3 times the continuous rating. Pancake motors, without iron in the armature and with an axial magnetic field, can withstand peak current up to 10 times the continuous rating, for higher peak torque.

The second unique feature of pancake motors is that in addition to the copper conductors, the commutator is also printed on the armature. This design allows the brushes to run directly on the armature surface. The lack of a separate commutator ring, in conjunction with the flat overall design, make pancake motors very compact, especially when compared to conventional cylindrical motors. Their thin design, along with a low inertia (due to the absence of iron) allows pancake motors to achieve extremely fast acceleration and deceleration.

Pancake motors such as (nema 6 motor or nema 8)were originally designed to drive the capstans on tape machines, where a very compact footprint was required, along with the ability to start and stop rapidly. Their uses have expanded, but pancake motors are still found primarily in applications that require a slim profile, smooth motion with no torque ripple, extremely fast acceleration and deceleration, or high peak torque.

Nema23 vs Nema17 Stepper Motor for the engineering challenged

How to Control NEMA17 Motor with A4988 Driver

カテゴリー: 未分類 | 投稿者zuimeikoud 18:17 | コメントをどうぞ

Hello world!

Blog総合管理へようこそ。これは最初の投稿です。編集もしくは削除してブログを始めてください !

カテゴリー: 未分類 | 投稿者zuimeikoud 09:02 | 1件のコメント