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BSM-series of Brushless Servo Motors

Product Summary

BSM-series of brush-less servo motors offer powerful eight pole motors that have been custom engineered to offer higher performance in a smaller envelope and at a lower cost.

Description

  • CE listed and UL approved
  • Higher Speeds
  • Longer Life
  • Cleaner Operation
  • Higher Duty Cycles

Servo Motors

NUTEC BSM series of brush-less servo motors have been custom engineered to offer higher performance in a smaller envelope and at a lower cost than standard off-the-shelf brushless servo motors. Powerful eight pole (40, 60 and 80mm SQ size motors) with rare earth magnets and skewed windings to reduce cogging, and class 3 ABEC bearings provide high speed, high torque, long life, and very smooth low speed operation, features required in complex servo systems.

Brushless servo motors are a class of servo motors that operate by using electronic commutation rather than electromechanical commutation as used in brush-type motors. Brushless motors have a permanent magnet rotor and the wound stator is on the outside allowing for greater heat dissipation. As electronic commutation is a function of rotor position there are no brushes to wear out, limit speed, cause electrical noise, or create contamination.

Features & Benefits

  • Rare earth Neodymiumboron – iron magnets
  • Peak torque to 850 oz-in.
  • IP65 sealing
  • High-flex cables
  • Protection from overheating
  • Optional encoder
  • Optional fail-safe brake

Specifications

Model

BSM40-45

BSM60-45

BSM60-175

BSM80-275

Motor Frame Size, SQ

40 x 40mm

60 x 60mm

60 x 60mm

80 x 80mm

Motor Power

100 Watts

100 Watts

200 Watts

600 Watts

Continuous Stall Torque

0.3 N-m
(45 oz-in)

0.3 N-m
(45 oz-in)

1.3 N-m
(180 oz-in)

2.0 N-m
(280 oz-in)

Peak Torque

1 N-m
(140 oz-in)

1 N-m
(140 oz-in)

2 N-m
(280 oz-in)

6 N-m
(850 oz-in)

Continuous Current

1.4 Amps

1.6 Amps

1.6 Amps

3.6 Amps

Peak Current

4.1 Amps

4.9 Amps

4.9 Amps

10.7 Amps

Torque Constant (Kt)

0.25 N-m/A

0.21 N-m/A

0.42 N-m/A

0.55 N-m/A

DC Resistance (Ra)

6.9 ohms

2.5 ohms

4.2 ohms

1.4 ohms

Inductance

6.7 mH

7.4 mH

15.2 mH

9.2 mH

Back EMF

13Vrms
/KRPM

14Vrms
/KRPM

30V
/KRPM

35V
/KRPM

Maximum Speed, Rated
Motor only (See stage)

3000RPM

Bus Voltage

320VDC

Cable Length

10ft

Motor Connector

DB 15 Male

Encoder Connector

DB 25 Male

Rotary Encoder Data BSMxx-xx-250
Encoder Lines 2500/rev
Encoder Counts 10000/rev
Home Index 1 per rev
Max. RPM 2500 RPM
Supply Voltage 1+5VDC regulated ±5%
Output 4 channel TTL Square Wave
Option BSMxx-xx-xxx-BAK
-BAK Fail-safe brake

Connector

DB25M Motor DB25M Encoder
Pin Function Pin Function
1 Motor T 1 Encoder +5VDC
2 Motor S 2 Ground
3 Motor R 3 Channel A+
4 Motor Ground 4 Channel B+
5 Channel C+
9 N/C
11 Hall V
15 Shield
16 Channel A-
17 Channel B-
18 Channel C-
19 N/C
21 N/C
23 Hall U
24 Hall W
Case Shield

Mechanical Interface

BSM40-45, 40 x 40mm SQ

servo motors

BSM60-45, 60 x 60mm SQ

image28551

BSM60-175, 60 x 60mm SQ

image10991

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