Anaheim Stepper MBD4502175 Users Guide

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MBC45021-75
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 Anaheim Automation MBD45021-75 is a bilevel step motor driver specifi cally designed to dynamically 
enhance driver performance.  The driver requires 24 to 40 volts to operate with this drive.  The drive will 
out perform all standard 24VDC drivers in the industry.  If your system is designed for a 24VDC specifi ca-
tion, this driver will allow you motor to increase its operating output performance thanks to this outstanding 
new driver design.
Bilevel Drive
The...

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Clock Modes
The MBC45021-75 has two clock options: clock and direction, or dual clock operation.  Jumper JP2 is used 
to select the clock option.  Jumper JP2 predetermines if a Direction Input or CCW Input will be selected.  
(Terminal Block TB1, pin 2)
When using the clock and direction option (most common option), clock pulses applied to the clock input 
cause the motor to step.  The direction of the motor is determined by the logic level of the direction input.  
Jumper JP2 must...

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Low Voltage Adjust (VLV ADJ.)
The jumper JP3 is used to set the motor low voltage (VLV) supply which furnishes the current necessary 
for holding (standstill) torque and low speed running torque.  The potentiometer R16 and Jp3 setting will 
produce a standstill current that is 70% of the rated current.  Refer to the Anaheim Automation website or 
catalog for motor current ratings.  The charts below are a guide when selecting a motor and the jumper 
JP3 setting.  (Refer to Jumper...

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Wiring Diagrams
Heating Considerations
The temperature of the heatsink should never be allowed to rise above 60° C.  If the necessary, air should 
be blown across the heatsink to maintain suitable temperatures.
Power Requirements
The MBD45021-75 can only be powered by a DC voltage only with a range of 24 to 40VDC.
Terminal Descriptions
TB1 TB2 TB3
Pin Description
1 Clock Input
2 Directional Control
3 Half or Full Step
4 On/Off, Reset
5 0VDC
Pin Description
1 0VDC
2 24-40VDC
Pin...

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Dimensions
Fault Protection
There are 3 types fault detection.  When a fault is detected, the driver turns off the motor current and a 
LED indicates which type of fault occured.  The Power LED is green and the 3 fault LEDS are off during 
normal operation.
Fault Type Fault Description
Short LED Red Shorted wire in the motor or cable.
Open LED Red Open wire in the motor or cable.
Temp/OV LED RedExcessive temperature or Over Voltage on 
the motor bus voltage.
If the driver goes into a...

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Specifi cations
Control Inputs:
TTL-CMOS Compatible
Logic “0” = 3.5 to 5.0 VDC
Logic “1” = 3.5 to 5.0 VDC
Terminals 1 and 2 on TB1 are pulled up or down (depending on jumpers) through 10k ohm resistors. 
Terminal on TB1 is pulled up through a 10k ohm resistor.
Clock, CCW:
(Terminals 1 and 2 of TB1)
15 microseconds minimum pulse width, positive or negative going.
Direction Control:
Logic “1” (open) - Clockwise
Logic “0” - Counterclockwise
Motor On/Off:
Logic “1” (open) - Motor...

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Troubleshooting
(800) 345-9401 or (714) 922-6990 If a fault occurs, reset the fault by applying a logic “0” to the reset input (TB1 pin 3) for at least 10 msec 
(or by cycling power OFF for at least 20 seconds).  After resetting, try to run the motor again.  If the driver 
faults again then check the conditions listed below.
Is the Short LED red?
This indicates that the motor has a phase shorted or there is a short in the motor cable or wiring.  Check 
the motor and the wiring for...

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Torque Speed Curves 

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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...