NI Stepper Motion System Selection Guide

Publish Date: Jun 21, 2012 | 42 Ratings | 4.45 out of 5 |  PDF

Overview

The National Instruments Stepper Motion Selection Guide is your free online resource that will guide you in selecting the hardware and software components you need to build your complete stepper motion control system.

Table of Contents

Figure 1: Stepper Motion Control System Overview
Figure 1: Stepper Motion Control System Overview

Four Steps to Stepper Motion Control

Step 1. Select Stepper Drive and Motor Step 1. Select Stepper Drive and Motor
Use this step to select the right NI Stepper Motors and Drive
Step 2. Select Motion Controller Step 2. Select Motion Controller
Use this step to select the right NI Motion Controller
Step 3. Select Accessories and Cables Step 3. Select Accessories and Cables
Use this step to select the NI Motion accessories and cables
Step 4. Select Software Step 4. Select Software
Use this step to select software to quickly prototype and deploy your application

  

Step 1. Select Stepper Drive and Motor

Drive and Motor

The first step is to select the right stepper motor and drive combination for your application. Below you will find a breadth of stepper drives and motors that NI offers. Selecting the right motor and drive is very important for the performance of your application.



Stepper Drive–Stepper drives translate command signals received from the motion controller to current that causes rotation in the motor. NI offers 1, 2 and 4 axes stepper drives with a range of power ratings. You can use these drives with NI or 3rd party stepper motors.

Stepper Motor–Stepper motors are permanent magnet motors that increment one step each time the motion controller sends out one pulse. When stopped they hold their position. NI offers stepper motors in NEMA 17, 23 and 34 sizes with a range of torque ratings and single shaft for open loop operation or dual shaft to mount encoder for closed loop operation for each size.

NI Stepper Drives

 Specifications  Units  P70530  P70360  MID-7602  MID-7604
   

 

 

 Axes Per Drive

 -

 1

 2

Input Voltage

Volts 

20-75 VDC 

 120/240 VAC

 Bus Voltage

 VDC

 20-75

 320

24

 Cont. Current

 Amps rms

 5

2.5 

1

 Peak Current

 Amps peak

7.1

3.5

1.4

 Max Shaft Power

 Watts

 300

525 

80 (all axis combined)

 Step Resolution

 -

200-50,000 steps/rev

x2 - x250

 Dimensions

 WxHxL in (mm)

 1.14 × 4.2 × 4.4
(29 × 107 × 111)

2.06 × 6.7 × 5.2
(52.3 × 170 × 132)

10 × 1.7 × 12.1
(254 × 43 × 307)

 Ambient Temperature

Degree C 

0-45

0-40

 Motor Inductance Range

 mH

 2-15

50-200

 

 Connectivity to NI PCI/PXI Motion Controller

 -

*Connect multiple drive using NI UMI-7772/7774 or NI UMI 7764

*Direct with SHC68-C68-S cable

 Mounting

 -

Panel

Rack Mount

 Features

 -

  • Encoderless stall detection
  • Microstepping
  • Motor wave shape tuning for ultra smooth low speed operation
  • Mid-band anti-resonance control
  • Idle and rest current adjustment
  • Current reduction
  • Microstepping
  • Current reduction
  • Selectable polarity for inhibit and limit switches

P70530 Power Supply–The P70530 drive is the only drive of those listed above that requires a separate power supply. The power supply must provide an output voltage between 20 and 75 VDC for the drive to operate correctly but the power supply choice should be made based on the requirements of the motor being driven.  To determine the requirements for your motor, view the torque/speed curves found below and choose a power supply with voltage and current properties necessary for the desired performance.

To view a list of recommended power supplies, visit KnowledgeBase 4GD7J1AJ: Which Power Supply Should I Use with the Danaher P70530 Drive?

NI Stepper Motors

Motors for P70360 Drive

View Torque/Speed Curves

Motor

NEMA Size

Step Angle

Dual Shaft for Encoder

Holding Torque

 Rotor Inertia

Phase Inductance (mH)

(N·m)

(oz-in)

(kg-m2 x 10-3)

(oz-in-s2)

T21NRLC-LNN-NS-00

 23

 1.8°

-

1.27

180

0.0248

0.0034

209

T21NRLC-LDN-NS-00

23

 1.8°

Yes

1.27

180

0.0248

0.0034

209

T22NRLC-LNN-NS-00

23

 1.8°

-

1.98

280

0.0408

0.0056

209

T22NRLC-LDN-NS-00

23

 1.8°

Yes

1.98

280

0.0408

0.0056

209

T23NRLC-LNN-NS-00

23

 1.8°

 -

2.68

380

0.0612

0.0084

136

T23NRLC-LDN-NS-00

23

 1.8°

Yes

2.68

380

0.0612

0.0084

136

N31HRLG-LNK-NS-00

34

 1.8°

-

4.52

641

0.1430

0.0202

138

 N31HRLG-LEK-M2-00

34

 1.8°

Yes

4.52

641

0.1430

0.0202

138

N32HRLG-LNK-NS-00

34

 1.8°

-

8.76

1240

0.2680

0.0380

206

N32HRLG-LEK-M2-00

34

 1.8°

Yes

8.76

1240

0.2680

0.0380

206

N33HRLG-LNK-NS-00 

34

 1.8°

-

12.08

1710

0.4000

0.0567

144

N33HRLG-LEK-M2-00 

34

 1.8°

Yes

12.08

1710

0.4000

0.0567

144

Motors for P70530 Drive

View Torque/Speed Curves

Motor

NEMA Size

Step Angle

Dual Shaft for Encoder

Holding Torque

 Rotor Inertia

Phase Inductance (mH)

(N·m)

(oz-in)

(kg-m2 x 10-3)

(oz-in-s2)

CTP10ELF 10MAA00

17

 1.8°

-

0.30

43

0.0040

0.0005

7.7

CTP10ELF 10MMA00

17

 1.8°

Yes

0.30

43

0.0040

0.0005

7.7

CTP11ELF 11MAA00

17

 1.8°

-

0.44

62

0.0050

0.0008

11

CTP11ELF 11MMA00

17

 1.8°

Yes

0.44

62

0.0050

0.0008

11

CTP12ELF 10MAA00

17

 1.8°

 -

0.56

80

0.0070

0.0011

12

CTP12ELF 10MAA00

17

 1.8°

Yes

0.56

80

0.0070

0.0011

12

T21NRLH-LNN-NS-00

23

 1.8°

-

1.27

180

0.0248

0.0034

4.6

T21NRLH-LDN-NS-00

23

 1.8°

Yes

1.27

180

0.0248

0.0034

4.6

T22NRLG-LNN-NS-00

23

 1.8°

-

1.98

280

0.0408

0.0056

7.1

T22NRLG-LDN-NS-00

23

 1.8°

Yes

1.98

280

0.0408

0.0056

7.1

T23NRLH-LNN-NS-00

23

 1.8°

-

2.68

380

0.0612

0.0084

6.2

T23NRLH-LDN-NS-00

23

1.8°

Yes

2.68

380

0.0612

0.0084

6.2

N31HRHJ-LNK-NS-00

34

1.8°

-

4.55

645

0.1430

0.0202

3.5

N31HRHJ-LEK-M2-00

34

1.8°

Yes

4.55

645

0.1430

0.0202

3.5

N32HRHJ-LNK-NS-00

34

1.8°

-

8.43

1195

0.2700

0.0380

6.5

N32HRHJ-LEK-M2-00

34

1.8°

Yes

8.43

1195

0.2700

0.0380

6.5

N33HRHJ-LNK-NS-00

34

1.8°

-

12.07

1710

0.4000

0.0567

9.0

N33HRHJ-LEK-M2-00

34

1.8°

Yes

12.07

1710

0.4000

0.0567

9.0

Motors for MID-7602 and MID-7604

View Torque/Speed Curves

Motor

NEMA Size

Step Angle

Dual Shaft for Encoder

Holding Torque

 Rotor Inertia

Phase Inductance (mH)

(N·m)

(oz-in)

(kg-m2 x 10-3)

(oz-in-s2)

CTP10ELF 10MAA00

17

 1.8°

-

0.30

43

0.0040

0.0005

7.7

CTP10ELF 10MMA00

17

 1.8°

Yes

0.30

43

0.0040

0.0005

7.7

CTP11ELF 11MAA00

17

 1.8°

-

0.44

62

0.0050

0.0008

11

CTP11ELF 11MMA00

17

 1.8°

Yes

0.44

62

0.0050

0.0008

11

CTP12ELF 10MAA00

17

 1.8°

 -

0.56

80

0.0070

0.0011

12

CTP12ELF 10MMA00

17

 1.8°

Yes

0.56

80

0.0070

0.0011

12


Back to top >>

  

Step 2. Select Motion Controller

Controllers

The second step is to select a motion controller. A motion controller takes user specified target positions and move constraints including maximum velocity, acceleration, and deceleration and creates a trajectory for the motors to follow.



NI stepper motion controllers implement a patented step generation algorithm. This algorithm averages the pulse frequency over multiple time slices, resulting in smoother moves.

Feature

NI 733x Low Cost Stepper Controller

NI 734x Full Featured Stepper/Servo Controller

NI 735x  High Performance Stepper/Servo Controller

Axes

2, 4

 2, 4

2, 4, 6, 8

PAC Platforms

PCI, CompactPCI/PXI

Linear, Circular, Spherical, and Helical Interpolation; Blending

Yes

Yes

Yes

Trapezoidal, S-Curve Profiles

Yes

Yes 

Yes

Closed-Loop Stepper Control

Yes

Yes

Yes

Contouring, Electronic Gearing, On-Board Programming

-

Yes

Yes

Buffered Breakpoints, Buffered High-Speed Capture, 4 MHz Periodic Breakpoints

-

-

Yes

PWM Lines/DIO Lines

2/32

2/32

2/64

Analog Input Resolution

-

12-bit

16-bit

Maximum Step Output Rate/Encoder Input Rate

4 MHz/20 MHz

 4 MHz/20 MHz

 8 MHz/20 MHz

Programming API

NI-Motion Driver

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Step 3. Select Accessories and Cables

NI UMI

A variety of accessories and cables options are available to connect the NI Motion controllers to stepper drives. Based of the drive you select from one of the following connectivity options.




Note: Most motion control setting on the P70530 and P70360 drives can be configured using dip switches. A serial programming cable (P7S2-232-9D, NI Part #: 780099-01) is required for select settings.

P70530 and P70360 Stepper Drive Connectivity Options

 P70530 and P70360 Stepper Drive Connectivity Options

NI MID-7602 and MID 7604 Stepper Drive Connectivity Option

NI MID-7602 and MID 7604 Stepper Drive Connectivity Option

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Step 4. Select Software

Motion Assistant

National Instruments offers motion control software products for rapidly creating programs in National Instruments LabVIEW, C, or Visual Basic with centralized (plug-in) or distributed motion controllers. Prototype your motion application and convert your project into ready-to-run NI LabVIEW or C code with NI Motion Assistant. Create custom motion controllers in LabVIEW with the NI SoftMotion Development Module for LabVIEW.

NI Motion Assistant for Interactive Prototyping

Motion Assistant

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