Anaheim Stepper MBC082561Users Guide

							MBC082561
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
April 2012L010342  
						

							Introduction
The MBC082561 Microstep Driver has an output current capability of 2.8 Amps minimum to 7.8 Amps 
maximum (Peak Rating).  The MBC082561 driver operates on a DC voltage of 22-90 volts.  The inputs are 
optically isolated with a minimum sourcing of 15.0 mA per input @+VDC.  The clock input is set to receive 
either positive or negative edge clocks with a maximum frequency of 400KHz.  The MBC082561 driver 
offers direction control and motor current ON/OFF capabilities.  The Reduce Current Enabled automati-
cally reduces motor current to 60% of set value after the last step is made (1sec delay).  The driver has 
built-in features to indicate power on (Green LED) and fault condition\
s (Red LED)
With the MBC082561, various step resolutions can be implemented by the onboard dip switch.  These 
division range from 400 steps per revolution to 51,200 steps per revolution.  The bipolar drive configura-
tion handles 4, 6 and 8 lead motors.  Protection devices have been added to this driver for  Short-Circuit, 
Motor Mis-Wire, Over-Voltage  and Under Voltage conditions.
Pin Descriptions
The inputs on the MBC082561 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 7.0 mA needs to be sourced or sinked through the opto-diode.  This is done sim -
ply by placing a voltage of +5VDC across the two inputs of the opto-diod\
e.  If sourcing current into the 
inputs, then all three cathodes (-) should be tied together and ground\
ed as shown in Figure 2.  If sinking 
current, then all three anodes (+) should be tied together to the +vol\
tage as shown in Figure 1.
Electrical Specifications
Absolute Maximum Ratings
Power Input Voltage: 90 VDC
Output Current: 7.8 AMPS PEAK
Max Plate Temperature: 65° C
Storage Temperature: -20° to +65°C
Humidity: 90% RH
Signal Input Voltage: +5.5V at 16mA
MBC082561 Microstep Driver Features
• Size 4.685”L x 2.000”W x 4.000”H
• Output Current 7.8 Amps Peak
• 400 to 51,200 steps/rev
• Over-Voltage Under Voltage and Short Circuit Protection
• Selectable Stand Still Current Reduction
• No Minimum Inductance
• Optical Isolation
• Motor ON/OFF Input
Item MinTy pMax Units
Input Voltage (Power) 228090 VDC
Phase Output Current 2.05.5A (RMS)
Phase Output Current 2.87.8A (Peak)
Logic Signal Voltage 3.555.5 VDC
Logic Signal Current 713 16 mA
Clock Frequency 0500kHz
Low Pulse Width 1.2uSec
Operation Temperature 065C
April 2012L010342  
						

							 
TB1 and TB2: 4 and 2 Pin Terminal Description
The enable an input, apply a DC voltage source of +5VDC.  The Anodes (+) are pins 1, 3, and 5 and the 
Cathodes (-) are pins 2, 4, and 6.  The change of the enable signal must be ahead of the direction signal 
by at least 5 uSeconds.  The Direction signal must be ahead of step clock signal by at least 5 uSeconds.
Pin #Description
1 Step Clock Input Anode (+): A positive going edge on this isolated input advances the motor one 
increment.  The size of the increment is dependent of the Microstep Select Inputs of\
 Switch 1.
2 Step Clock Input Cathode (-)
3 Direction Anode (+): 
This isolated input is used o change the direction of the motor.  Physical 
direction also depends on the connection of the motor windings.
4 Direction Cathode (-)
1 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.
2 ON/OFF Cathode (-)
TB3: 6 Pin Terminal Description
Pin # Description
1 GND: Power Return
2 VIN: (+18 to +80VDC)
3 Phase Ā: Phase 1 of the Step Motor
4 Phase A:  Phase 3 of the Step Motor
5 Phase B: Phase 2 of the Step Motor
6 Phase B: Phase 4 of the Step Motor
Optically Isolated Inputs
The following inputs to the MBC082561 are Optically Isolated
Item Pin #
Clock 1 & 2 (TB1)
Direction 3 & 4 (TB1)
On/Off 1 & 2 (TB2)
April 2012L010342  
						

							Hook Up Drawings
Fiigure 1: Hook up for current sinking inputs
Fiigure 2: Hook up for current sourcing inputs
April 2012L010342  
						

							Motor Selection
The  MBC082561  is  a  Bipolar  Microstep  Driver  that  is  compatible  with  both  Bipolar  and  Unipolar  Motor 
Configurations, (i.e. 8 and 4 lead motors, and 6 lead center tapped motors).
Step motors with low current ratings and high inductance will perform better at low speeds, providing 
higher low-end torque.  Motor 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 flow 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 MBC082561 is a constant current source, it is not necessary to use a motor that is\
 rated at the 
same voltage as the supply voltage.  What is important is that the MBC082561 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 number are 
shown below.  Anaheim Automation offers a comprehensive line of step motors in NEMA sizes 08, 11, 14, 
15,17, 23, 24, 34 and 42 frame sizes.  Contact the factory to verify motor compatibility with the MBC082561.
Step Motor Current Setting Guide - Sample - Many more Motors to Choose F\
rom!
Motor Example Motor Current 
Number Code Unipolar 
Rating  Series Peak 
Rating Parallel 
Peak Rating Series Current 
Setting Parallel Current 
Setting
23D102S 021.0A 1.0A 2.0A --- ---
23Y303S-LW8 031.5A 1.5A 3.0A ---ON,ON,ON
34N104S-LW8 042.0A 2.0A 4.0A ---ON,OFF,ON
23Y106S-LW8 062.5A 2.5A 5.0AON,ON,ON OFF,OFF,ON
34A106B 063.0A 3.0A 6.0AON,ON,ON ON,ON,OFF
34N207S-LW8 073.5A 3.5A 7.0AOFF,ON,ON ON,OFF,OFF
34K108S-LW8 084.0A 4.0A 8.0AON,OFF,ON OFF,OFF,OFF
42N209S-CB 094.5A 4.5A 9.0AON,OFF,ON OFF,OFF,OFF
23Y310S-LW8 105.0A 5.0A 10.0AOFF,OFF,ON ---
34D311D 115.5A 5.5A 11.0AON,ON,OFF ---
42K112S-CB 126.0A 6.0A 12.0AON,ON,OFF ---
34D213S 136.5A 6.5A 13.0AOFF,ON,OFF ---
34N314S-LW8 147.0A 7.0A 14.0AON,OFF,OFF ---
42N115D-CB 157.5A 7.5A 15.0AOFF,OFF,OFF ---
34K416S-LW8 168.0A 8.0A 16.0AOFF,OFF,OFF ---
42D119D 199.5A 9.5A 19.0A ------
42N322S-CB 2211.0A 11.0A 22.0A ------
42D225S 2512.5A 12.5A 25.0A ------
Anaheim Automation offers motor cable, making hook-ups quick and easy!
Contact the factory or visit our website for more motor and cable offeri\
ngs.
April 2012L010342  
						

							Microstep Selection (SW1 Settings)
Switches 5, 6, 7, and 8, of the DIP switch select the number of microsteps per step.  The following table 
shows the standard resolution values along with the associated positions\
 for the dip switches.  The stan-
dard wave forms are sinusoidal.
Setting the Output Current
The output current on the MBC082561 is set by Switches 1, 2, and 3.  The position determines the per-
phase peak output current of the driver.  The relationship between the output current and the switch set-
tings are as follows.
Reducing Current Setting
Switch 4 is used for enabling or disabling the reduced current ant standstill.  When this switch is off, the 
driver will be in reduced current setting and the standstill current will be 60% of the set motor \
current.  
When this switch is on, the drier will not be in reduced mode and the standstill current will be 100% of the 
set motor current.
ResolutionSteps/Rev SW 5SW 6 SW 7 SW 8
2 400ON ON ON ON
4 800ONOFF ON ON
8 1600 ONON OFF ON
16 3200 ONOFF OFF ON
32 6400 ONON ON OFF
64 12800 ONOFF ON OFF
128 25600 ONON OFF OFF
256 51200 ONOFF OFF OFF
5 1000 OFF ON ON ON
10 2000 OFF OFF ON ON
25 5000 OFF ONOFF ON
50 10000 OFFOFF OFF ON
125 25000 OFF ON ON OFF
250 50000 OFFOFF ON OFF
Peak CurrentRMS Current SW 1SW 2 SW 3
2.8A 2.0AONON ON
3.5A 2.5AOFF ONON
4.2A 3.0AONOFF ON
4.9A 3.5AOFFOFF ON
5.7A 4.0AONONOFF
6.4A 4.5AOFF ONOFF
7.0A 5.0AONOFF OFF
7.8A 5.5AOFFOFF OFF
April 2012L010342  
						

							Determining Output Current
The output current for the motor used when microstepping is determined differently from that of a full/half 
step unipolar driver.  In the MBC082561, a sine/ cosine output function is used rotating the motor\
.  The 
output current for a given motor is determined by the motors current rating and the wiring configuration of 
the motor.  There is a current adjustment potentiometer used to set the output current of the MBC082561.  
This  sets  the  peak  output  current  of  the  sine/cosine  waves.    The  specified  motor  current  (which  is  the 
unipolar value)  is multiplied by a factor of 1.0, 1.4, or 2.0 depending on the motor configuration (series, 
half-coil, or parallel).
Step Motor Configurations
Step motors can be configured as 4, 6, or 8 leads.  Each configuration requires different currents.  Refer 
to the lead configurations and the procedures to determine their output current.
Warning! Step motors will run hot even when configured correctly.  Damage may occur to the motor if a 
higher than specified current is used.  Most specified motor currents are maximum values.  Care should 
be taken to not exceed these ratings.
6 Lead Motors
When configuring a 6 lead motor in a  series configuration (connected from end to end with the center 
tap  floating)  used  the  specified  per  Phase  (or  unipolar)  current  rating  to  determine  the  current  setting 
potentiometer value.
When configuration a 6 lead motor in a  half-coil configuration (connected from one end of the coil to the 
center tap), multiply the specified per Phase (or unipolar) current rating by 1.4 to determine the current 
setting potentiometer value.  This configuration will provide more torque at higher speeds when compared 
to the series configuration.
April 2012L010342  
						

							4 Lead Motors
Multiply  the  specified 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 configuring the motor windings in series, use the per Phase (or unipolar) cur-
rent rating to determine the current setting potentiometer value.
Parallel Connection: When configuring the motor windings in parallel, multiply the per Phase (or unipolar) 
current rating by 2.0 to determine the current setting potentiometer val\
ue.
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.
April 2012L010342  
						

							Connecting the Step Motor
Phase 1 (A) and 3 (A\) of the Step Motor is connected between pins 3 and 4 on the motor connector (TB3).  
Phase 2 (B) and 4 (B\) of the Step Motor is connected between pins 5 and 6 on the motor connector (TB3). 
Refer to Figures 1 and 2 for TYPICAL APPLICATION HOOK-UP.
NOTE: The physical direction of the motor with respect to the direction input will depend on the connection 
of the motor windings.  To reverse the direction of the motor with respect to the direction input, switch the 
wires on the Phase 1 (A) and Phase 3 (A\).
WARNING: Do not connect or disconnect motor wires while power is applies!  Doing so will cause an 
extremely high back-EMF voltage surge which could possibly destroy the d\
river.
Short-Circuit, Mis-Wire, and Over Current Conditions
If there is a condition that causes on over current in the driver phase transistors, the alarm indica\
tor LED 
will turn red and power will be shut off to the motor.  To reset the drive turn power off, check wiring, and 
turn power back on.
Over-Voltage and Under-Voltage Conditions
When the power supply voltage exceeds +90VDC, protection will be activited and the alarm indicator 
LED will turn red.  When the power supply voltage is lower than +22VDC, the driver will not work prop\
erly.
Dimension Drawings
April 2012L010342  
						

							COPYRIGHT 
Copyright 2012 by Anaheim Automation. All rights reserved. No part of this publication may be reproduced, 
transmitted, transcribed, stored in a retrieval system, or translated in\
to 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 conse\
quential 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 indemnifies 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 specifications. 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 first.  Warranty provisions may be voided if products 
are subjected to physical modifications, 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 o\
f 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 Distr\
ibutor where you purchased 
the unit, or contact the factory direct.
ANAHEIM AUTOMATION
April 2012L010342