Anaheim Stepper MBC12101 Users Guide
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January 2013 L010353 MBC12101 Bipolar Microstep Driver User’s Guide 910 East Orangefair Lane, Anaheim, CA 92801 e-mail: [email protected](714) 992-6990 fax: (714) 992-0471 website: www.anaheimautomation.com ANAHEIM AUTOMATION
January 2013 L010353 General Description The MBC12101 Microstep Motor Driver has an output current capability of 1.5 Amps minimum to 10.0 Amps maximum (Peaking Rating). The MBC12101 driver operates from a DC voltage of 20-80 Volts. The inputs are optically isolated with a minimum sourcing of 1.0 mA per input (+3.5VDC minimum to +8.6VDC maximum). The clock input is set to receive either positive or negative edge clocks with a maximum fre- quency of 100KHz. The MBC12101 driver offers direction control, motor current ON/OFF capabilities, and built in short circuit and mis-wire shutdown. The Reduce Current Enabled automatically reduces motor current to 50% of set value after the last step is made. The driver has built-in features to indicate power on (Green LED) and Clocks being received (Yellow LED). The MBC12101 has a fi xed step resolution of 2000 steps per revolution with a 200 step/revolution stepper motor and the bipolar drive confi gurations handles 4, 6, and 8 lead motors. Optically Isolated Input Pin Descriptions The inputs of the MBC12101 are optically isolated with the anode (+) and cathode (-) both brought out to the user. With no current going through the opto-diode the input is considered high. To enable the input a minimum of 1.0 mA needs to be sourced or sinked through the opto-diode. This is done simply by placing a voltage of +3.5 to +8.6VDC across the two inputs of the opto-diode. If sourcing current into the inputs, then all three cathodes (-) should be tied together and grounded as shown in Figure 3. If sinking current, then all three anodes (+) should be tied together to the +voltage as shown in Figure 4. To enable an input, apply a DC voltage source of +5VDC to 8.6VDC across the inputs. The Anodes (+) are pins 7, 9, and 11 and the Cathodes (-) are pins 8, 10, and 12. Connecting the Step Motor Phase 1 and 3 of the Step Motor is connected between pins 3 and 4 on the terminal block connector. Phase 2 and 4 of the Step Motor is connected between pins 5 and 6 on the terminal block connector. Refer to Figures 3 & 4 for Typical Application Hook-Up. NOTE: The physical direction of the motor with respect to the direction input will depend on the con- nection of the motor windings. To reverse the direction of the motor with respect to the direction input, swap the wires on Phase 1 and Phase 3. WARNING: Do not connect or disconnect motor wires while power is applied! This driver does not protect itself if the motor is disconnect while powered. MBC12101 Driver Features • Size (4.50”L x 3.500”W x 0.935”H) • Output Current 10.0 Amps Peak • Built in Short Circuit and Mis-Wire Shut Down • Fixed Step Resolution of 2000 Steps per Revolution • No Minimum Inductance • Optical Isolation of Control Inputs • Motor ON/OFF Input
January 2013 L010353 12 Pin Terminal Block Description Pin # Description 10VDC: Return path for driver voltage 220-80VDC: Input voltage for the driver (+20-80VDC) 3A: Phase 1 of the Step Motor 4Ā: Phase 3 of the Step Motor 5B: Phase 2 of the Step Motor 6B: Phase 4 of the Step Motor 7ON/OFF: On/Off Anode (+) - This isolated input is used to enable and disable the output section of the driver. When HIGH (open) the outputs are enabled. However, this input does not inhibit the step clock. 8ON/OFF: On/Off Cathode (-) 9Dir+: Direction Anode (+) - This isolated input is used to change the direction of the motor. Physical direction also depends on the connection of the motor windings. 10DIR-: Direction Cathode (-) 11Clock+: Step Clock Input Anode (+) - A positive going edge on this isolated input advances the motor one increment. The size of the increment is dependent on the Microstep Select Inputs of Switch 1. 12Clock-: Step Clock Input Cathode (-) Power Supply Requirements It is recommended that the MBC12101 be powered by the PSA80V4A or the PSAM48V3.2A. The PSA80V4A is a 80 Volt, 4 Amp power supply that will take either 110VAC or 220 VAC inputs and de- liver 320 Watts. The PSAM48V3.2A is a 48 Volt, 3.2 Amp power supply with a universal input to accept input voltages in the range of 95- 265VAC and deliver 150Watts. Power Supply Drawings for PSA80V4A and PSAM48V3.2A Figure 2: Dimensions for PSAM48V3.2A Figure 1: Dimensions for PSA80V4ATable 1: Pin Descriptions for Terminal Block Note: 1. For 110VAC Input Install JP1 & JP2 Only. 2. For 220VAC Input Install JP3 Only.
January 2013 L010353 Absolute Maximum Ratings Input Voltage: 80VDC Output Current: 10.0 Amps Peak Max Plate Temperature: 70°C Storage Temperature: 0° to +50°C Electrical Specifi cations Item Min Typ Max Units Input Voltage20 80 80 VDC Phase Output Current1.1 7.1 A (RMS) Phase Output Current1.5 10.0 A (PEAK) Input Voltage (Inputs)3.5 8.6 VDC Clock Frequency0 100 kHz Chopping Frequency27 30 33 kHz Operation Temperature070C Setting the Output Current WARNING: Do not set the current setting above the step motors rated current. When using a higher current into a motor, the motor will overheat and burnup. Should this occur, the driver will also be damaged. The output current on the MBC12101 is set by and onboard potentiometer. This potentiometer determines the per phase peak output current of the driver. The relationship between the output current and the potentiometer value is as follows: Peak Current Potentiometer Setting Peak Current Potentiometer Setting 1.5A 0% 7.0A 60% 2.3A 10% 7.9A 70% 3.1A 20% 8.7A 80% 4.0A 30% 9.6A 90% 5.0A 40% 10A 100% 6.0A 50% -- -- Reducing Output Current Reducing the output current occurs approximately 1 second after the last positive going edge of the step clock input. The amount of current per phase in the reduction mode is approximately 50% of the set current. Reducing the output current is accomplished when no current fl ows through the opto-diode at the CLOCK (+) and CLOCK (-) pins after the last step has occured. The clock LED should be off at this time. Refer to Table 5 for specifi c motor current settings. Table 3: Potentiometer values with respect to the output currentTable 2: MBC12101 Electrical Specifi cations
January 2013 L010353 Wiring Diagrams Dimensions Table 5: MBC12101 DimensionsTable 4: Hook up for current sinking inputs Table 3: Hook up for current sourcing inputs
January 2013 L010353 Motor Selection The MBC12101 is a Bipolar Microstep driver that is compatible with both Bipolar and Unipolar Stepper Motor Confi gurations, (i.e. 8 and 4 lead motors, and 6 lead center tapped motors). Stepper Motors with low current ratings and high inductance will perform better at low speeds, providing higher low-end torque. Motors with high current ratings and low inductance will perform better at higher speeds, providing more high-end torque. Higher voltages will cause the current to fl ow faster through the motor coils. This in turn means higher step rates can be achieved. Care should be taken not to exceed the maximum voltage of the driver. Since the MBC12101 is a constant current source, it is not necessary to use a stepper motor that is rated at the same voltage as the supply voltage. What is important is that the MBC12101 is set to the appropriate current level based on the motor being used. Refer to the following chart for setting the current potenti- ometer based on the current code in the part number of the motor. Examples of motor part numbers are shown below. Anaheim Automation offers a comprehensive line of step motors in 08, 11, 14, 15, 17, 23, 24, 34 and 42 frame sizes. Contact the factory to verify motor compatibility with the MBC12101. Step Motor Current Setting Guide Motor ExampleMotor Current Number CodeUnipolar RatingSeries Peak RatingParallel Peak RatingSeries Current SettingParallel Current Setting 23D102S 02 1.0A 1.0A 2.0A ---- 5% 23L303D-LW8 03 1.5A 1.5A 3.0A 0% 20% 34N104S-LW8 04 2.0A 2.0A 4.0A 5% 30% 23L4005D-LW8 05 2.5A 2.5A 5.0A 10% 40% 34A106B 06 3.0A 3.0A 6.0A 20% 50% 34N207S-LW8 07 3.5A 3.5A 7.0A 25% 60% 34K108S-LW8 08 4.0A 4.0A 8.0A 30% 70% 42N209S-CB 09 4.5A 4.5A 9.0A 35% 85% 23L310S-LW8 10 5.0A 5.0A 10.0A 40% 100% 34D311D 11 5.5A 5.5A 11.0A 45% 100% 42K112S-CB 12 6.0A 6.0A 12.0A 50% 100% 34D213S 13 6.5A 6.5A 13.0A 55% 100% 34N314S-LW8 14 7.0A 7.0A 14.0A 60% 100% 42N115D-CB 15 7.5A 7.5A 15.0A 65% ---- 34K416S-LW8 16 8.0A 8.0A 16.0A 70% ---- 42D119D 19 9.5A 9.5A 19.0A 90% ---- 42322S-CB 22 11.0A 11.0A 22.0A 100% ---- 42D225S 25 12.5A 12.5A 25.0A 100% ---- Anaheim Automation offers motor cable, making hook-ups quick and easy! Contact the factory or visit our website for more motor and cable offerings. Table 4: Table selection for Anaheim Automation motor current settings.
January 2013 L010353 Setting the Output Current The output current for the stepper motor being used when microstepping is determined differently from that of a full/half step unipolar driver. In the MBC12101, a sine/cosine output function is used in rotating the motor. The output current for a given motor is determined by the motors current rating and the wiring confi guration of the motor. There is a current adjustment potentiometer used to set the output current of the MBC12101. This sets the peak output current of the sine/cosine waves. The specifi ed motor current (which is the unipolar value) is multiplied by a factor of 1.0, 1.4, or 2.0 depending on the motor confi guration (series, half-coil, or parallel). WARNING: Do not set the current setting above the step motors rated current. When using a higher current into a motor, the motor will overheat and burnup. Should this occur, the driver will also be damaged. Stepper Motor Confi gurations Stepper Motors can be wired with 4, 6, or 8 leads. Each confi guration requires different currents. Refer to the lead confi gurations and the procedures to determine their output current. WARNING: Step motors will run hot even when confi gured correctly. Damage may occur to the motor if a higher than specifi ed current is used. Most specifi ed motor currents are maximum values. Care should be taken to not exceed these ratings. 6 Lead Motors When confi guring a 6 lead motor in a half-coil confi guration (connected from one end of the coil to the center tap), multiply the specifi ed per Phase (or unipolar) current rating by 1.4 to determine the current setting potentiometer value. This confi guration will provide more torque at higher speeds when compared to the series confi guration. When confi guration the motor in a series confi guration (connected from end to end with the center tap fl oating) use the specifi ed per Phase (or unipolar) current rating to determine the current setting potentiometer value.
January 2013 L010353 4 Lead Motors Multiply the specifi ed series motor current by 1.4 to determine the current adjustment potentiometer value. Four Lead Motors are usually rated with their appropriate series current, as opposed to the Phase Current, which is the rating for 6 and 8 lead motors. 8 Lead Motors Series Connection: When confi guring the motor windings in series, use the per Phase (or unipolar) current rating to determine the current setting potentiometer value. Parallel Connection: When confi guring the motor windings in parallel, multiply the per Phase (or unipolar) current rating by 2.0 to determine the current setting potentiometer value. Note: After the current has been determined, according to the motor connections above, use Table 3 to choose the proper setting for the current setting potentiometer.
January 2013 L010353 ANAHEIM AUTOMATION COPYRIGHT Copyright 2013 by Anaheim Automation. All rights reserved. No part of this publication may be reproduced, transmitted, transcribed, stored in a retrieval system, or translated into any language, in any form or by any means, electronic, mechanical, magnetic, optical, chemical, manual, or otherwise, without the prior written permission of Anaheim Automation, 910 E. Orangefair Lane, Anaheim, CA 92801. DISCLAIMER Though every effort has been made to supply complete and accurate information in this manual, the contents are subject to change without notice or obligation to inform the buyer. In no event will Anaheim Automation be liable for direct, indirect, special, incidental, or consequential damages arising out of the use or inability to use the product or documentation. Anaheim Automation’s general policy does not recommend the use of its’ products in life support applications wherein a failure or malfunction of the product may directly threaten life or injury. Per Anaheim Automation’s Terms and Conditions, the user of Anaheim Automation products in life support applications assumes all risks of such use and indemnifi es Anaheim Automation against all damages. LIMITED WARRANTY All Anaheim Automation products are warranted against defects in workmanship, materials and construction, when used under Normal Operating Conditions and when used in accordance with specifi cations. This warranty shall be in effect for a period of twelve months from the date of purchase or eighteen months from the date of manufacture, whichever comes fi rst. Warranty provisions may be voided if products are subjected to physical modifi cations, damage, abuse, or misuse. Anaheim Automation will repair or replace at its’ option, any product which has been found to be defective and is within the warranty period, provided that the item is shipped freight prepaid, with previous authorization (RMA#) to Anaheim Automation’s plant in Anaheim, California. TECHNICAL SUPPORT If you should require technical support or if you have problems using any of the equipment covered by this manual, please read the manual completely to see if it will answer the questions you have. If you need assistance beyond what this manual can provide, contact your Local Distributor where you purchased the unit, or contact the factory direct.