Stepper motors

Stepper motors 

The market demands cost-effective solutions. 

To answer this demand, B&R offers their stepper motors as a 

cost-effective and powerful addition to the existing product portfolio. 

1443

Table of contents 

1444 Stepper motors

System characteristics .............................................................................. 2 1446 

Product overview ...................................................................................... 2 1448 

Product data sheets .................................................................................. 2 1450 


1445

System characteristics 

Areas of use 

Over 500 million stepper motors are assembled worldwide each year. Although 

most of these motors are used in very simple applications, the trend is also continuing 

to grow in applications that were handled strictly by DC and BLDC motors in the 

past. High grade controllers continue to enable more complex tasks to be solved. 

Many applications that were solved using smaller servo motors in the past can now 

be handled by a stepper motor with the corresponding electronics. 

Not only the controller possibilities have advanced over the last few years, but the 

motors themselves are running considerably smoother and with stronger torque 

values thanks to improved technologies. New, robust and even affordable position 

feedback possibilities are also playing their part in opening up new areas of application 

for stepper motors. 

Of course stepper motor solutions also have their limitations. Particularly high 

speeds, easily achieved by servos, often mean the end of implementation possibilities 

for a stepper motor. However, dealing with gearing solutions can create many 

chances to succeed with a small conversion or even without any gears at all. The 

reason for this is the high torque that can be achieved with stepper motors in the 

low to middle speed range. 

Choosing the right motor 

Choosing a motor can introduce many hurdles for the user. Motors from different 

manufacturers or even motor generations can have considerable differences. The 

standard specifications in the data sheets often do not provide enough information 

to make this decision. Only detailed information can reliably indicate the possible 

areas of use. Parameters such as concentricity, counter EMF, efficiency, resonance 

frequencies, etc., become more important the more complex the application is. 

With careful decision making, stepper motors can be used for many more applications 

than is the case today. Special attention must be given to the properties that 

are particularly important for the respective applications. These properties often 

cannot be reached until used in combination with the drive. 

Concentricity and angular precision 

A majority of the 2-phase hybrid stepper motors have a stepping angle of 

1.8 degrees. In addition to this however, are the versions with 0.9 degrees and the 

even less common with 0.45 degrees. The smaller stepping angle often results in 

a worse torque curve. Only stepper motor drivers that support micro-steps can 

then be used to achieve higher positioning accuracy. Moreover, a high step resolution 

produces excellent concentricity properties and reduces potential problems 

resulting from resonance effects. 

Positioning accuracy 

The degree of precision achieved by the set position depends on the applied load 

torque as well as the manufacturing accuracy of the stepper motor. The amount 

of positioning accuracy within one step is always dependent on the load and the 

resulting angular slip. However, this can never be higher than one full step because 

otherwise the motor gets out of sync and steps are lost. The best way to compensate 

for this load angle is via position feedback. This is why all B&R stepper motors 

are also available in affordable encoder variations, which achieve a resolution of up 

to 12 bits. Therefore, positioning precision is possible with an angular deviation of 

less than 0.1 degrees, even under considerable load torque. 

Highlights of the B&R stepper motors 

• High torque 

• High overload capability 

• Cost-effective encoder option 

• Able to be operated in parallel and serially 

A1 

A1 

A2 

A2 

B1 B1 B2 B2 

Schematic diagram of a stepper motor in 8-line design 

1446 

Stepper motors


1447

Product overview 


Model number 

Short description 

80MPD1.300S000-01 Stepper motor, 2-pin, 56 mm flange, length 45 mm, 3 A serial / 6 A parallel 2 1450 

80MPD3.300S000-01 Stepper motor, 2-pin, 56 mm flange, length 57.5 mm, 3 A serial / 6 A parallel 2 1451 

80MPD5.300S000-01 Stepper motor, 2-pin, 56 mm flange, length 80.5 mm, 3 A serial / 6 A parallel 2 1452 

80MPH1.300S000-01 Stepper motor, 2-pin, 86 mm flange, length 66 mm, 3 A serial / 6 A parallel 2 1453 





Overview 

Flange size 56 mm 

Motor 80MPD1.300S000-01 80MPD3.300S000-01 80MPD5.300S000-01 

Length [mm] 45 57.5 80.5 

Wiring Serial Parallel Serial Parallel Serial Parallel 

Current [A] 3 6 3 6 3 6 

Resistance / phase [] 1.2 0.3 1.6 0.4 2.4 0.6 

Inductance / phase [mH] 2.7 0.9 5.2 1.3 8.8 2.2 

Stall torque [Nm] 0.8 1.25 2.2 

Holding torque [Nm] 1.1 1.8 3.0 

Detent torque [mNm]

0 

15±0.25 

∅6.35-0.013 

5.8±0.15 

0 

Dimensions 

20.6±0.4 

L 

56.4 

1.6 5 47.14±0.2 

∅38.1±0.05 

56.4 

47.14±0.2 

+0.3 

∅4.5 0 

Dimensions of stepper motors with flange size 56 mm (all measurements in mm) 

31.75±0.51 

L 

87.12 

2.03 9.91 69.6±0.13 

22.23 

∅73.025±0.025 

∅12.7-0.013 

#6-32 

87.12 

69.6±0.13 

4.763 

∅5.66 

14.097 

Dimensions of stepper motors with flange size 86 mm (all measurements in mm) 


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80MPD1, 3 A 


80MPD1.300S000-01 

Stepper motor 

Stepper motor flange size 56 mm, length 45 mm 

Technical data 

80MPD1.300S000-01 

Length 

45 mm 

Wiring Serial Parallel 

Current 3 A 6 A 

Resistance / phase 1.2 0.3 

Inductance / phase 2.7 mH 0.9 mH 

Stall torque 

0.8 Nm 

Holding torque 

1.1 Nm 

Detent torque 


80MPD3, 3 A 


80MPD3.300S000-01 


Stepper motor flange size 56 mm, length 57.5 mm 


80MPD3.300S000-01 

Length 

57.5 mm 





Stall torque 

1.25 Nm 


1.8 Nm 

Detent torque 


80MPD5, 3 A 


80MPD5.300S000-01 


Stepper motor flange size 56 mm, length 80.5 mm 


80MPD5.300S000-01 

Length 

80.5 mm 





Stall torque 

2.2 Nm 


3.0 Nm 

Detent torque 


80MPH1, 3 A 


80MPH1.300S000-01 




80MPH1.300S000-01 

Length 

66 mm 





Stall torque 

2.9 Nm 


4.2 Nm 

Detent torque 


80MPH3, 3 A 


80MPH3.300S000-01 




80MPH3.300S000-01 

Length 

98 mm 





Stall torque 

5.5 Nm 


8.0 Nm 

Detent torque 


80MPH4, 3 A 


80MPH4.300S000-01 




80MPH4.300S000-01 

Length 

98 mm 





Stall torque 

6.3 Nm 


9.5 Nm 

Detent torque 


80MPH4, 5 A 


80MPH4.500S000-01 




80MPH4.500S000-01 

Length 

98 mm 





Stall torque 6.3 

Holding torque 9.5 

Detent torque 


80MPH6, 3 A 


80MPH6.300S000-01 




80MPH6.300S000-01 

Length 

130 mm 





Stall torque 

9.3 Nm 


13.6 Nm 

Detent torque

Stepper motors

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