SD7540A Stepper Drive
20 Gear Drive, Plymouth Industrial Park, Terryville, CT 06786
page: 4
Tel: (860) 585-1254 Fax: (860) 584-1973 Web: www.amci.com
ADV ANC ED
MIC RO CON T RO L S INC.
SD7540A Specifications
Environmental Specifications
Supply Voltage
24Vdc to 75Vdc max, 4 Arms maximum, user supplied.
The maximum supply input voltage includes power supply ripple
and motor back EMF.
Operating Temperature
32° to 122°F (0° to 50°C) Also, see Operating Notes on the following page.
Storage Temperature
–40° to 185°F (–40° to 85°C)
Relative Humidity
0 to 95%, non-condensing
Electrical Specifications
Motor Current
User Selectable – 4.0 Arms max 0.4 –4.0 Arms in 0.4 increments (10%-100%)
Default value – 3.20 Arms (80%)
Steps per Revolution
400, 1000, 2000, and 5000 – user selectable
Default value – 2000 steps/rev
Frequency on the Step input (max) - 100KHz
Idle current reduction time
1 sec
Idle current selection
0% to 70% of the maximum operating current
Default Value: 20%
Digital Inputs
Three opto-isolated differential inputs:
Step – Velocity/position command
Direction – Direction Control
Disable – Disables motion by reducing motor current to zero. The pins for this input can
be left open if the input is not used in your application.
Type of input
5V TTL logic
Input Current
15mA max
Input Connector
AMCI Part # MS-8P, provided (Phoenix part # MC 1.5/8-ST3.81)
8 screw terminal type – 16 AWG max.
Configuration Programming
Interface – RS232
Programming Software – AMCI SPI Interface software, Windows 2000/XP supported
Interface Cable – AMCI CSMD-5 5 ft serial cable (optional)
