MAX-410/420 Advanced Micro Systems, Inc., MAX-410/420 Datasheet

MAX-410/420

Manufacturer Part Number

MAX-410/420

Description

Manufacturer

Advanced Micro Systems, Inc.

Datasheet

1.MAX-410420.pdf (2 pages)

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OVERVIEW

The MAX-410 (single axis) and MAX-

420 (dual axis) are full function mi-

crostep positioning systems with integral

driver (4 amps) and power supply

(40Vdc). Standard features include 2k

bytes of non-volatile memory for

program storage, extended user I/O

facilities, programmable motor current

and independent acceleration/decelera-

tion ramping.

Programming is through high-speed RS-

422 serial interface with simple mne-

monic commands for plug-and-play

operation. Optional encoder circuitry

provides stall detection and position

feedback for closed-loop operation.

The MAX systems incorporate AMS’

proprietary “Variable Resolution

Microstep Control” (VRMC

technology for accurate and repeatable

positioning at any shaft speed. Step

resolution ranges from 400 to over

50,000 steps per revolution.

Short circuit, over temperature and under

voltage protection, combined with

special “Watchdog” software, ensure

trouble-free operation in any environ-

ment. For export, CE certified models

are also available.

SINGLE AND DUAL AXIS

POSITIONING SYSTEMS

MAX-410

MAX-420

CONTROLLER

ENCODER

FEEDBACK

MICROSTEP

“VRMC”

AND

POWER

SUPPLY

DRIVER

) indexing

MOTOR

FEATURES

• Integral controller/driver/power supply

• Rugged, compact design

• Low cost

• Short circuit/over temp. protected

• Output current of 4 amps @ 40Vdc

• 1/256 motor step resolution

• Fixed or variable step resolution

• Programmable run/hold current

• RS-422 “Party Line” operation

• Programmable accel/decel ramps

• Six buffered user I.O. ports

• 2k bytes of non-volatile memory

• Optically isolated home/limits

• Self-contained home routine

• Dual speed jog inputs

• Go and soft stop inputs

• Programmable trip point

• Encoder feedback option

• Watchdog S/W for extra reliability

SERIAL INTERFACE

The MAX systems feature full duplex

serial communications. A “Party Line”

interface implements a differential

transmission and receiver pair that

provides reliable communication in

industrial environments. This protocol

permits simultaneous communication

(up to 32 axis) with minimum command

processing latency.

PROGRAMMABLE CURRENT

The MAX has a programmable current

feature that controls motor winding

current to within 1% resolution. Indepen-

dent settings for “RUN” and “HOLD”

currents permit full motor torque when

stepping. Automatic power down to the

hold current value minimizes motor

power dissipation when the system is in

an idle mode of operation.

PROGRAMMING

Programs can be stored in non-volatile

memory by using a host computer or

dumb terminal. For stand-alone use there

is a “GO” switch input. Additional input

ports can test and branch to multiple

motion subroutines. Two programmable

outputs are available to drive solid state

relays and other devices. A separate

“TRIP” function provides automatic

program branching when a specified

motion is passed. Additional control

inputs include soft stop, dual speed jog

and step by step monitoring of travel

limits.

ENCODER FEEDBACK

All MAX systems are easily upgraded to

include encoder feedback for “closed

loop” applications that require positional

feedback data and stall detection. A

built-in “line count” multiplier extends

normal encoder resolution by a factor of

four, providing greater accuracy at less

cost.

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