1 2 3 4

A

B

C

D

4321

D

C

B

A

Title

Number RevisionSize

B

Date: 27-Apr-2005 Sheet of File: C:\Privat\Produkte\4A Schrittmotorkarte\20050406StepperMotorCard\Version 1_1.DDBDrawn By:

BOOT14

BOOT28

EN11

IN15

IN27 OUT1 3

OUT2 1

VREF 9

SEN 10

VS

2

GN

D6

IC3

L6203

C5220n

C215n

C322n

C415n

C15100n

+ C1220u/100V 1

2

K2

WindinG 1

R310/2Watt

R10.1ohm 5W

UB

GND

Phase2

Phase1

BOOT14

BOOT28

EN11

IN15

IN27 OUT1 3

OUT2 1

VREF 9

SEN 10

VS

2

GN

D6

IC4

L6203

C8220n

C615n

C722n

C915n

C16100n

12

K3

Winding 2

R410/2Watt

R20.1ohm 5W

Phase4

Phase3

GND

9

810

IC1C

4093

1

23

IC1A

4093

12

1311

IC1D

4093

T1BC640

R81K

R1282K

R11

4K7

R9

1K2

R547K

R139K

R747K

R1033K

R6

22K

D1

LED

C11470n

C103n3

B1 E3

C2

T2BC547B

CW/CCW17

Clk18

Half/Full19

Sync1

Reset20

Enable10

A 4

B 6

C 7

D 9

INH1 5

INH2 8

Sense1 14

Sense2 13

OS

C16

Ctrl

11

5V12

Gnd

2

VRef15

Home3

IC2

L297

VCC

VCC

+ C1210u16V Tantal

D2

1N4148

P1500K

6

54

IC1B

4093

P2500K

P3500K

PA

PB

PC

PD

INH1

INH2

12345678

K4

8Pin

Direction

Clk

Half

Enable

VRefExt USense2

USense1

VCCVCC

Sync

VRef

VRefInt

UB

UBUB

C13100n

VCC

GNDUB

GND

IMaxIntOn

DeltaT

IMax IHold

Setup of delay shutdown of IMaxIntOn:

Toff = (R7 + R_P1) * C11 * ln (UB5V / Uoff_IC2)

Uoff_IC2 depends on the used part. Setup with oscilloscope

Toff can be between 1- 10 ms

Setup of IHold and IMax:

IHold: Motor winding currency if pin IMaxIntOn = LowIMax: Motor winding currency if pin IMaxIntOn = High

Step 1: Setup P3 to IHold

IHold = VRefInt / RSense1, 2 (RSense1=0.1ohm)

Step 2: Setupt P2 to IMax Schematics

Stepper Motor controller

IMax = 4 AmpereUB min = 20 VUB max = 40V

For smaller motors (around 1 Ampere) setup

RSense1 and RSense 2 to 0.47 ohmR5 = 820KR8 = 15KR14 = 150K

C17100n

ChopperCtrl

VCC

Cho

pper

Ctr

l

11 2 233 4 455 6 68 810 10

77 99 1111 12 12J1

Setup

OscillatorO

scill

ator

IntOsz

IntOszVRef

VRefExtVRefInt

ExtOsz

ChopperCtrl

VRef

Setup of Stepper Card

Jumper 1: Set Chopper Control (according to the motorCase1: PIN 1-2 UB5V Control (Phase chopping, for motors with small inductance)Case2: PIN 3-4 GND-Control (default) Inhibit (fast chopping)

Jumper 2: Set OscillatorCase 1: PIN 5-6 use external oscillator, put to GNDCase 2: PIN 7-8 use internal oscillator (default)

Jumper 3: Set Reference voltageCase 1: PIN 9-10 use internal reference voltage (default)Case 2: PIN 11-12 use external reference voltage

123

K1

Power Supply

VRef

ChopperCtrl

Oscillator

C14100n

Oscillator

Jumper 1

Jumper 2

Jumper 3

4A Stepper Motor Card, Version 1.2

(c) Gerhard Burger 2005

25. March 2005

Driver 1

Drr

verC

trl

power supply

Driver 2

VrefSync

ChopperCtrl

∆totIMaxIHold

Win

ding

1W

indi

ng 2

Stepper Motor

W2

w12

w11

w22

w21

W2

IMaxClkDirHalf/FullEnableSyncGND

UB ≤36V5V GND

4A Stepper Motor CardVersion 1.2