User Manual

1.13

Connection to Indexer SMI30

u

O4

O5

O6

O7

O8

O -

OE

O+

O1

O2

O3

P +

P -

AI1

A

B

AI2

AO1

DRIVER

SMI30 / 31

POWER

PROGRAM

MOTOR

ERROR

HM

PL

I

NL

I8

I7

I6

I

I5

I4

I3

I2

I

I1 RS232

RS485

Motor

A power-dump resistor may be mounted

(SMD41 : 33-50 Ohm/50W)

(SMD42 : 68-100 Ohm/50W)

+

Fuse T10A

Ground

Screen

Screen connected to digital GND as close to driver as possible

DRIVER

Screen

Power

Error

1

2

3

4

5

Current Curve

Resolution

50kHz Filter ON/OFF

I

I

O

O

O

O

1

2

3

4

5

6

I

I

O

I

7

8

9

10

I 11

I

I

12

13

O 14

GND /

Supply

Motor A

Motor A

Motor B

Motor B

+

-

+

-

Power Dump

Direction

PNP

Stepclock

PNP

Digital GND

Standby Current

Move Current

Current GND

Error

TT0017

Resistor values selected in accordance with table in section

"Adjustment of Motor Current”

2,2k

P+

SALA

COIN

SON

6

7

8

9

4

5

1

2

3

CLK-

CLK+

DIR-

DIR+

GND

1.13.1

Connection to Indexer SMI30

The above illustration shows how a typical connection is made between the SMD41/42 and JVL Indexer SMI30 or SMI31. It is recommended that screened cable is used for connecting the motor and the logic signals to the SMI3x in order to avoid spurious noise problems and to fulfil the requirements of CE conformity for the complete system.

It is recommended that the cable length between the SMI3x and SMD41/42 does not exceed 2 m.

The following SMI3x registers must be set:

PR

Pulses per motor revolution. This register must be set according to the number of steps per revolution selected on the SMD41/42.

CB15

Control flag for SALA (servo alarm). This flag is set to CB15=1 so that the SMI3x accepts logic 0 as the active level for the SALA input. This means that the SMI3x detects any error from the SMD41/42 when the "Error" Output goes to logic 0.

JVL Industri Elektronik A/S — User Manual Step Motor Driver SMD41/42 23