Catalog excerpts
BM/BMS Brushless Motor Hardware Manual P/N: EDA135 (Revision 2.06.00) Dedicated to the Science of Motion Aerotech, Inc. 101 Zeta Drive, Pittsburgh, PA, 15238 Phone: 412-963-7470 Fax: 412-963-7459 www.aerotech.com
Open the catalog to page 1Technical Support Go to www.aerotech.com/service-and-support.aspx for information and support about your Aerotech products. The website provides downloadable resources (such as up-to-date software, product manuals, and Help files), training schedules, and PC-to-PC remote technical support. You can also complete Product Return (RMA) forms and get information about repairs and spare or replacement parts. For immediate help, contact a service office or your sales representative. Have your customer order number available before you call or include it in your email. United States (World...
Open the catalog to page 2BM/BMS Brushless Motor Hardware Manual
Open the catalog to page 3Table of Contents BM/BMS Brushless Motor Hardware Manual
Open the catalog to page 4BM/BMS Brushless Motor Hardware Manual Table of Contents
Open the catalog to page 5Table of Contents BM/BMS Brushless Motor Hardware Manual
Open the catalog to page 6BM/BMS Brushless Motor Hardware Manual BM/BMS Brushless Motors Chapter 1: BM/BMS Brushless Motor Hardware Manual The BM/BMS series comprise Aerotech's high-performance, brushless, permanent magnet rotary servomotors. The motors feature rare earth magnets for maximum torque and acceleration in a small package. BM Series The BM series motors can reach speeds up to 10,000 rpm and accelerations to 270,000 rad/sec2 for improved machine cycle times. Unlike DC brush-type servomotors, the BM series are brushless and maintenance free. This makes them ideal for critical applications where downtime...
Open the catalog to page 7BM/BMS Brushless Motors BM/BMS Brushless Motor Hardware Manual This is to certify that the aforementioned product is in accordance with the applicable requirements of the fol- lowing Directive(s): and is in conformity with the applicable requirements of the following documents when installed and used in accordance with the manufacturer's supplied installation instructions. I EC 60034-1:2004 Rotating Electrical Machines I EC 61010-1:2001 Safety requirements for Electrical Equipment for meas- urement, control, and laboratory use NOTE: Safe operation of the motor requires over speed and over...
Open the catalog to page 8BM/BMS Brushless Motor Hardware Manual BM/BMS Brushless Motors 1.2. Safety Procedures and Warnings Read this manual in its entirety before installing, operating, or servicing this product. If you do not understand the information contained here, contact an Aerotech representative before proceeding. Strictly adhere to the statements given in this section and other handling, use, and operational information given throughout the manual to avoid injury to you and damage to the equipment. This symbol on the motor label means that the manual must be read in its entirety to understand any...
Open the catalog to page 9BM/BMS Brushless Motors BM/BMS Brushless Motor Hardware Manual D A N G E R : These motors are not rated for use in explosive atmospheres. They are not to be operated in the presence of potentially explosive mixtures of air-borne dust or combustible vapors. D A N G E R : Motors and their associated drives, cabling, etc. are sources of electromagnetic fields. Persons with external or implanted medical devices need to evaluate the risks associated with these devices before entering an area where they are in use. N O T E : All drawings and illustrations are for reference only and were...
Open the catalog to page 10BM/BMS Brushless Motor Hardware Manual BM/BMS Brushless Motors 1.3. Motor Installation Motors are installed by bolting the motor flange to a mounting surface using four holes on the motor flange. The load is connected to the motor shaft using keyways and/or flats. 1.3.1. Connector Pin Assignment The pin assignment for the MS motor power connector is displayed in Table 1-1, the MS feedback connector is shown in Table 1-2, the optional resolver MS connector is shown in Table 1-3, and the D-sub motor and feedback connector pin assignments are shown in Table 1-4 and Table 1-5. W A R N I N G :...
Open the catalog to page 11BM/BMS Brushless Motors BM/BMS Brushless Motor Hardware Manual Table 1-3: Resolver Connector Pin Assignment (MS3101A-20-29P)
Open the catalog to page 12BM/BMS Brushless Motor Hardware Manual BM/BMS Brushless Motors Table 1-5: 25-Pin D-Connector Pin Assignment
Open the catalog to page 13BM/BMS Brushless Motors BM/BMS Brushless Motor Hardware Manual 1.4. External Motor Wiring All external wiring to the motor must meet certain requirements to provide for safe and reliable operation. The wiring must be able to supply the rated current without overheating. The wire insulation must be rated for the voltage and temperature at which the motor is operating. And, efforts must also be made to reduce EMI emissions and to increase EMI immunity through proper cable selection and installation. In addition to supplying the external wiring the customer is also responsible for providing...
Open the catalog to page 14BM/BMS Brushless Motor Hardware Manual BM/BMS Brushless Motors 1.4.4. Hall-Effect Device and Thermistor Wiring The insulation of these wires should have a rating for at least the maximum voltage applied to the motor winding. The temperature rating of the wire insulation must also be sufficiently high to withstand the operating temperatures specific to the application. 1.4.5. Wiring Guidelines The wiring guidelines given below can help to reduce EMI related problems which can result in poor overall system performance. l Keep cable lengths as short as possible. Long cable runs are more...
Open the catalog to page 15BM/BMS Brushless Motors BM/BMS Brushless Motor Hardware Manual 1.4.6. Thermal Protective Device BMS motors incorporate a positive-temperature coefficient (PTC) thermistor as a thermal protection device. The nominal resistance of the thermistor is 100 ohms at 25°C. The thermistor exhibits a rapid increase in resistance to 1,000 ohms as the motor temperature approaches the thermistor’s transition temperature of 100°C (refer to Figure 1-2). W A R N I N G : The thermal protective device used in the BMS style motor must be incorporated in an external shutdown circuit to provide protection to...
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