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. The only exception to this would be use of the program examples in this manual. DISCLAIMER Though every effort has been made to supply c

Safety Information …………………………………………… 4 2-1 Cautions ………………………………..………..… 4 2-2 Safety Symbols ………………………..…..……… 4 3. Specifications……………………………………...…………. 5 4. Operation Instructions……………………………………… 6 4-1 Unit Diagram ……………………………………… 6 4-2 Measuring Procedure ……………………….…... 7 4-3 Humidity & Temperature Measurement ..……… 7 4-4 DEW Point Measurement .…………….………… 7 4-5 Data Hold ……………………....………………… 7 4-6 Data Record (MAX/MIN) ………………………… 7 4-7 Auto Data Logger ………………………………… 7 4-8 Manual Data Logger ………

The MBC10641 driver operates with either a transformer, whose input can be wired from 90-265 VAC or a DC voltage of 30-85 Volts. The inputs are optically isolated with a minimum sourcing of 7.0 mA per input (+5VDC minimum to +24VDC maximum). The clock input is set to receive either positive or negative edge clocks with a maximum frequency of 400KHz. The MBC10641 driver offers direction control and motor current ON/OFF capabilities. The Reduce Current Enabled automatically reduces motor current t

The relationship between the output current and the resistor value is as follows: RMS OUTPUT CURRENT (Amps) = (.707)(0.002)(Resistor in Ohms) RMS Current Resistor Value RMS Current Resistor Value 1.0 698 2.5 1740 1.2 845 2.6 1820 1.4 988 2.7 1890 1.6 1110 2.9 2030 1.7 1180 3.0 2100 1.9 1330 3.2 2230 2.0 1400 3.3 2320 2.2 1540 3.4 2370 2.3 1600 3.8 2670 2.4 1670 4.0 2870 TABLE 3: RESISTOR VALUES WITH RESPECT TO OUTPUT CURRENT Closest 1% value selected WARNING! A current adjustment resistor is alw

Each time the step motor driver receives a pulse, the step motor moves one step. If the driver receives 200 pulses, the motor moves 200 steps. The motor steps at the same frequency as the clock pulses. FIGURE 1: Step Motor Driver General Description The BLD72 is a step motor driver that can drive motors rated from 1 to 7 amps/phase (unipolar rating). It can handle 6 lead and 8 lead motors. This driver features a unipolar bilevel (or dual voltage) drive technique with short and open circuit prote

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 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. When configuring the motor in a series conf

Resolution Steps/Rev Select 1 Select 2 Select 3 Select 4 Auto Reduce Current 1 200 OFF ON ON ON Disabled 2 400 OFF ON ON OFF Disabled 5 1000 OFF ON OFF ON Disabled 8 1600 OFF ON OFF OFF Disabled 10 2000 OFF OFF ON ON Disabled 16 3200 OFF OFF ON OFF Disabled 32 6400 OFF OFF OFF ON Disabled 64 12800 OFF OFF OFF OFF Disabled 1 200 ON ON ON ON Enabled 2 400 ON ON ON OFF Enabled 5 1000 ON ON OFF ON Enabled 8 1600 ON ON OFF OFF Enabled 10 2000 ON OFF ON ON Enabled 16 3200 ON OFF ON OFF Enabled 32 6400

5 Transformer Drawings 3.750 MAX 4.500 3.100 2.500 1.450 MAX 1.500 .800 MAX 2.350 3.570 3.000 Figure 6: Transformer Dimensions Note: The AA2793 transformer is the same physical size as the AA2791, but it has two sets of secondary windings (to power two drivers) and a dual primary winding for 115/230V operation. Figure 8: AA2793 Transformer Specs Figure 7: AA2791 Transformer Specs 6 Figure 9: Wiring for different line voltages for the AA2793 transformer. 7 Dimensions Drawings Figure 10: BLD72 Dim

2000 Steps/Revolution . On-Board Programmable Simple Indexer with 2 motion profiles . Pulses From 1Hz to 50kHz . Directional Soft and Hard Limit Switch Inputs . Complete Output . Busy Output . Motor On/Off Input and Automatic Current Reduction . Short Circuit Protection Introduction The MBC10SI1 is an low cost single axis step motor driver integrated with a programmable simple indexer. The MBC10SI1 microstep driver/pulse generator has an output current capability of 1.5A minimum to 10.0A maximum