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TEWS TECHNOLOGIES GmbH keeps the right to change technical specification without further notice.

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10/2009

TEWS TECHNOLOGIES GmbH

Am Bahnhof 7

25469 Halstenbek, Germany

Phone: +49 (0) 4101 4058 0

Fax: +49 (0) 4101 4058 19

e-mail: info@tews.com

www.tews.com

TIP120

Motion Controller using Incremental Encoder

Application Information

The TIP120 family of IndustryPack

® compatible modules is

designed for motion control applications using incremental

encoders as position feedback.

There are five versions available: The TIP120-1x is a one or

two axes motion control IP based on the LM628 controller

from National Semiconductor providing a ±10V output signal

by a 12 bit D/A converter. The TIP120-2x is a one or two

axes motion control IP based on the LM629 controller from

National Semiconductor providing an 8 bit sign-magnitude

PWM output signal. The TIP120-30 is a two axes motion

control IP based on the LM628 controller from National

Semiconductor for axis 1 providing a ±10V output signal by

a 12 bit D/A converter and based on the LM629 controller

from National Semiconductor for axis 2 offering an 8 bit

sign-magnitude PWM output signal.

The position feedback is provided by an incremental

encoder interface. The level of the encoder signals can be

TTL or RS422. The LM628 / LM629 used on the TIP120-xx

are dedicated motion control processors designed for use

with a variety of DC and brushless DC servo motors, and

other

servomechanisms

which

provide

a

quadrature

(quadruple) incremental position feedback signal.

The LM628 / LM629 perform the intensive, real-time

computational tasks required for high performance digital

motion control. The host control software interface is

facilitated by a high-level command set.

Three isolated 24V DC digital inputs are available for user

functionality. The function for the three inputs may be limit

switches and emergency stop input. A floating optical output

can be controlled by software, for example as enable signal

for the motor power amplifier. The TIP120-1x uses the

LM628 as motion controller and provides a ±10V output

signal by a 12 bit D/A converter. The ±10V output signal is

buffered by an operational amplifier which is able to drive

unlimited capacitive loads. This signal can be used to drive

the power amplifier of the motor drive system.

For

First-Time-Buyers

the

Engineering

Documentation

TIP120-ED

is

recommended.

The

Engineering

Documentation includes TIP120-DOC, schematics and data

sheets of TIP120.

Software support (TIP120-SW-xx) is available for different

operating systems.

Technical Information

Interface according to IndustryPack specification

Identification-PROM

Single Size IndustryPack

8 bit sign-magnitude PWM output data (LM629) per

axis to control a servo amplifier

12 bit DAC output data (LM628) per axis with ±10V

output signal to control a servo amplifier

32 bit position, velocity and acceleration registers

Quadruple analysis of count signals

Maximum count frequency: 1 MHz

Programmable derivative sampling interval

Real time programmable host interrupt

Internal trapezoidal velocity profile generator

16 bit PID-filter parameter

3 inputs per axis for limit switches, emergency stop

1 output per axis for enable signal