BSH servo motors offer an excellent solution to the need for high dynamic performance. With five flange sizes and a variety of lengths, there is a suitable solution for many applications, covering a continuous stall torque range from 0.5 to 33.4 Nm for speeds up to 9,000 rpm.
Thanks to their new winding technology based on salient poles, BSH servo motors are far more compact and offer a higher power density than conventional servo
motors.
BSH servo motors are UL Recognized and conform to standard UL1004 as well as to European directives CE marking).
They are available with the following variants:
- 5 flange sizes: 40, 55, 70, 100, and 140 mm
- 2 degrees of protection for the shaft end: IP 50 or IP 65 in accordance with standard IEC/EN 60529. The degree of protection of the casing is IP 65 (IP 67 with the conformity kit, which is available as an option).
- With or without holding brake
- Straight or elbow connectors for power and encoder connection b Integrated single-turn or multi-turn SinCos Hiperface® encoder (medium or high resolution)
- Smooth or keyed shaft end
Special features
BSH servo motors have been developed to comply with the following main specifications:
- The ambient operating temperature is - 20 to + 40 °C without derating, in accordance with standard IEC 60721-3-3, category 3K3, and up to 55 °Cwith derating of 1% of the nominal output power per additional °C above 40 °C.
- The maximum operating altitude is 1,000 m without derating, 2,000 m with k = 0.86, and 3,000 m with k = 0.8
- The relative humidity that the servo motor can withstand is in line with standard IEC 60721-3-3, categories 3K3, 3Z12, and 3Z2.
- The windings are insulation class F (maximum temperature for windings 155 °C) in accordance with standard IEC 60034-1.
- All mounting positions are permitted (horizontal mounting (IMB5) or vertical mounting (IMV1 with shaft end at the top and IMV3 with shaft end at the bottom) in accordance with standard IEC 60034-7.
Sizing
The Lexium Sizer tool is available on our website www.schneider-electric.com to help you size your servo motor.
Holding brake
BSH servo motors can be equipped with an electromagnetic holding brake. Do not use the holding brake as a dynamic brake for deceleration, as this
will quickly damage the brake.
Integrated encoder
BSH servo motors are equipped with a single-turn (131,072 points/turn) (1) or multi-turn (131,072 points/turn x 4,096 turns) (1) SinCos Hiperface® high resolution absolute encoder giving an angular shaft position precise to less than ± 1.3 arc minutes.
This encoder performs the following functions:
- Gives the absolute position of the motor so that flows can be synchronized
- Measures the servo motor speed via the associated Lexium 32 servo drive (this information is used by the servo drive’s speed controller)
- Measures the position information for the servo drive's position controller
- Sends data from the servo motor to the servo drive, which provides automatic identification of the motor when the servo drive starts
