DPY50001

Bipolar Microstep Driver Pack

User’s Guide

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A N A H E I M A U T O M A T I O N

910 East Orangefair Lane, Anaheim, CA 92801 e-mail: [email protected]

(714) 992-6990 fax: (714) 992-0471 website: www.anaheimautomation.com

December 2012

DPY50001 Microstep Driver Features

• Size (8.25”L x 5.05”W x 3.47”H)

• Output Current 5.0 Amps Peak

• 200 to 12,800 steps/rev (1, 2, 5, 8, 10, 16, 32 and 64 selectable step operations)

• Short Circuit Protection

• No Minimum Inductance

• Optional Isolation

• Motor ON/OFF Input

General Description

The DPY50001 is a single-axis 5A bipolar microstep motor driver and a 125W power supply enclosed in a package. The DPY50001’s microstep driver has an output current capability of 0.5 Amps minimum to

5.0 Amps maximum (Peak Rating). The inputs are optically isolated with a minimum sourcing of 1.0mA per input (+3.5VDC minimum to +24VDC maximum). The clock input is set to receive either positive or negative edge clocks with a maximum frequency of 400kHz. The driver offers direction control and motor current ON/OFF capabilities. The Reduce Current Enabled automatically reduces motor current to

50% of set value after the last step is made (20msec delay). The driver has built-in features to indicate power on (Green LED), a fault condition (Red LED) and clocks being received. (Yellow LED)

With the DPY50001, various step resolutions can be implemented by the onboard dip switch. These divisions range from 200 steps per revolution to 12,800 steps per revolution. The bipolar driver confi guration handles 4, 6 and 8 lead motors. Protection devices have been added to this driver for Phase to

Phase Short-Circuit and Motor Miss-Wire conditions.

Pin Descriptions

The inputs on the DPY50001 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 1.0mA needs to be sourced or sinked through the opto-diode. This is done simply by placing a voltage of +3.5 to +24 VDC across the two inputs of the opto-diode. If sourcing current in to the inputs, then all three cathodes (-) should be ties together and grounded as shown is Figure 2. If sinking current, then all three anodes (+) should be tied together to the +voltage as shown in Figure 1.

Optically Isolated Inputs

The following inputs to the DPY50001 are optically isolated.

Item

Clock

Direction

On/Off

Pin #

1 & 2

3 & 4

5 & 6

Table 1: Inputs That are Optically Isolated

To enable an input, apply a DC voltage source of +5VDC to +24VDC across the inputs. The Anodes (+) are pins 1, 3 and 5 and the Cathodes (-) are pins 2, 4 and 6.

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TB1: 8 Pin Terminal Description

Pin # Description

1

2

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.

Step Clock Input Cathode (-)

3

4

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.

Direction Cathode (-)

5

6

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.

ON/OFF Cathode (-)

Table 2: TB1 Terminal Descriptions

TB2: 5 Pin Terminal Description

Pin # Description

1 Phase A: Phase 1 of the step motor

2

3

4

5

Phase A: Phase 3 of the step motor

Phase B: Phase 2 of the step motor

Phase B: Phase 4 of the step motor

Motor Ground

Table 3: TB2 Terminal Descriptions

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Absolute Maximum Ratings

Input Voltage: 130VAC, 50/60Hz

Output Current: 5.0 AMPS Peak

Max Plate Temperature: 70°C

Storage Temperature: 0° to +50°C

Input Voltage (For Isolated Inputs): +3.5V to +24V

Electrical Specifi cations

Item Min Typ Max Units

Input Operating Voltage 105 115 130 VAC

Phase Output Current 0.4

Phase Output Current 0.5

3.5

5.0

A (RMS)

A (PEAK)

Clock Frequency

Chopping Frequency

0 400

28 30 32

Input Signal Voltage 3.5

Operation Temperature 0

Storage Temperature 0

Table 4: Specifi cations

24

70

50 kHz kHz

V

C

C

Hook Up Drawings

Sinking:

Sourcing:

Figure 1: Hook Up for Sinking Current

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Figure 2: Hook Up for Sourcing Current

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Dimension Drawing

Figure 3: Dimension Drawing

Motor Selection

The DPY50001 contains a Bipolar Microstep Driver that is compatible with both Bipolar and Unipolar Motor

Confi gurations, (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. Motors with high current ratings and low inductance will perform better at higher speeds, providing more high-end torque.

Since the DPY50001’s driver 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 driver is set to the appropriate current level based on the motor being used.

Anaheim Automation offers a comprehensive line of step motors in 17, 23, 34 and 42 frame sizes.

Contact the factory to verify motor/drive compatibility.

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Step Motor Selection Guide

23Y206

23Y210

23Y306

23Y310

34Y108

34Y207

34Y307

23Y108

23Y106

23Y104

17Y302

17Y202

17Y102

Part Number

Unipolar

Rating

4.0A

3.0A

2.0A

---

---

---

3.0A

5.0A

3.0A

5.0A

4.0A

3.5A

3.5A

Series

Peak

Rating

3.0A

5.0A

3.0A

5.0A

4.0A

3.5A

3.5A

4.0A

3.0A

2.0A

1.0A

1.0A

1.0A

Table 5: Step Motor Selection Guide

Parallel

Peak

Rating

Series

Current

Setting

6.0A

60%

10.0A

100%

6.0A

60%

10.0A

100%

8.0A

7.0A

7.0A

80%

70%

70%

8.0A

6.0A

4.0A

---

---

---

80%

60%

40%

22%

22%

22%

Parallel

Current

Setting

100%

100%

100%

100%

100%

100%

100%

100%

100%

80%

---

---

---

Anaheim Automation offers motor cable, making hook-ups quick and easy!

Contact the factory or visit our website for more motor and cable offerings.

Microstep Selection (SW1 Settings)

Switches 2, 3 and 4, of the DIP switch select the number of microsteps per step. The table below shows the standard resolution values along with the associated positions for the select switches. The standard waveforms are sinusoidal.

Resolution Steps/Rev Select 2 Select 3 Select 4

1 200 ON ON ON

2

5

400

1000

ON

ON

ON

OFF

OFF

ON

8

10

16

32

64

1600

200

3200

6400

ON

OFF

OFF

OFF

OFF

ON

ON

OFF

12800 OFF

Table 6: SW1 Switch Settings

OFF

OFF

ON

OFF

ON

OFF

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Setting the Output Current

The output current on the DPY50001 is set by an 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

0.5A

0% 3.0A

60%

0.6A

0.9A

10%

20%

3.5A

4.0A

70%

80%

1.5A

2.0A

2.5A

30%

40%

50%

4.5A

5.0A

---

90%

100%

---

Table 7: Output Current POT Settings

Refer to Table 5 for specifi c motor current settings.

Reducing Output Current

Reducing the output current is accomplished by setting switch 1 of the DIP switch to the ON position and occurs approximately 20mSec after the last positive going edge of the step clock input. The amount of current per phase in the reduction mode is approximately 70% of the set current. When the current reduction circuit is activated, the current reduction resistor is paralleled with the current adjustment potentiometer.

This lowers the total resistance value, and thus lowers the per phase output current.

Determine 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 DPY50001, 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 wring confi guration of the motor. There is a current adjustment potentiometer used to se the output current of the DPY50001.

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).

Step Motor Confi gurations

Step motors can be confi gured as 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.

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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.

Figure 4: Half Coil Motor Connection

When confi guring the motor is a series confi guration (connected from one 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.

Figure 5: Series Motor Connection

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.

Figure 6: Series Motor Connection

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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.

Figure 7: Series Motor Connection

Parallel Connection: When confi guration the motor windings in parallel, multiply the per Phase (or unipolar) current rating by 2.0 to determine the current setting potentiometer value.

Figure 8: Parallel Motor Connection

NOTE: After the current has been determined, according to the motor connections above, use Table 7 to choose the proper setting for the current setting potentiometer.

Connecting the Step Motor

Phase 1 and Phase 3 of the step motor are connected to pins 1 and 2 on connector TB2. Phase 2 and

Phase 4 of the step motor are connected to pins 3 and 4 on connector TB2. The motors case can be grounded to pin 5 on connector TB2. Refer to Figures 1 & 2 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 Phase 1 and Phase 3.

WARNING: Do not connect or disconnect motor wires while power is applied!

Short-Circuit, Mis-Wire, and Over-Current Conditions

If it is found that there is a condition that causes on over current in the driver phase transistors, the Red

LED will turn on solid and power will be shut off the motor. To reset the drive turn power off, check wiring, and turn power back on.

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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 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.

L010193

A N A H E I M A U T O M A T I O N

December 2012