Calculated Industries 3401 Specifications download pdf

20 Gear Drive, Plymouth Industrial Park, Terryville, CT 06786 page: 1

Tel: (860) 585-1254 Fax: (860) 584-1973 E-mail: Sales @amci.com

3401 Manual

Point I/O Stepper Module

Revision 2.0

Module Overview

The 3401 module is a one-axis stepper controller that occupies one slot in a Point I/O or a 1769-L18

system. This unit receives profile data from the PLC and outputs Step and Direction signals or

Clockwise/Counter Clockwise pulses to a stepper driver. Inputs on the module allow homing and

emergency stop operations.

The 3401 uses four 16 bit input words and eight 16 bit output words. Status information and the Current

Position data are reported to the Input Registers. The 8 output registers have two purposes. First, they are

used to configure the module with parameters such as Output Type, Homing Type, Inputs Used, Input Active

Level, and Starting Speed. Second, they are used to send the move commands, along with the distance,

speed, and acceleration and deceleration rates used to define the move profile.

32-bit parameters are divided into two words, MSW and LSW. The upper word (MSW) has the 1000s

places and the lower word (LSW) has the 1s, 10s and 100s places. Negative values are handled by setting

both the upper and lower words independently negative. For example:

Value MSW LSW

-12,345 -12 -345

12,000 12 0

-12,000 -12 0

345 0 345

-345 0 -345

Because the 3401 module does not use a non-volatile memory, it must be configured at every power up.

The 3401 module is not shipped with the 1734-TB (screw clamp) or the 1734-TBS (spring clamp) wiring

base assembly. These parts must be separately ordered from Rockwell Automation.

Sample programs showing how to program the 3401 module are available from the following page of our

website.

http://www.amci.com/sampleprograms.asp

Driver files that can be used to add the 3401 module to ControlNet, DeviceNet, or Profibus systems can

be downloaded from the following page of our website.

http://www.amci.com/driverfiles.asp

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3401 Manual 1

Summary of Contents

Page 1 - 3401 Manual

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