Anaheim Stepper MBC12101 Users Guide

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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 

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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...

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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:...

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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...

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Wiring Diagrams
Dimensions
Table 5: MBC12101 DimensionsTable 4: Hook up for current sinking inputs Table 3: Hook up for current sourcing inputs 

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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...

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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...

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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...

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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...