User guide

RMS Technologies Page 5 Version 1.04

IMD17/IMDE17 10/1/2007

FEATURES

• NEMA Size 17, 2 Phase, 1.8° Bipolar Step Motor w/ Built-In Microstepping Driver

• Operates from +12 to 24 VDC

• Step Resolution: Full, 1/2, 1/4, 1/8

• Optically Isolated Step, Direction, and Disable/Enable Inputs

• Automatic Current Reduction with Disable Switch

• Low Power Dissipation

• Efficient Current Control

• Quiet Operation

• Thermal Shutdown, Under-Voltage Protection

• Power-On Indicator

• Power Disable/Enable Control

• Sinusoidal current waveform

• Phase Current Range from 0.35 to 2.0 Amp

• Default Setting is 1.0 Amp RMS or, 1.4 Amp Peak

IMDE17 - Encoder Features

• 32 to 1250 cycles per revolution (CPR) chosen by customer

• 2 Channel Quadrature

• TTL Squarewave Outputs and optional index (3rd Channel)

• E2 US Digital Encoder

Pin Number Function

1 Ground

2 Index*

3 Channel A

4 + 5 VDC

5 Channel B

Table 1: Encoder Pinouts

*Optional Index Channel

Default Settings

Step Resolution 8x Microstep

Direction of rotation Counterclockwise

Holding Current 23% of motor’s

rated Current

Table 2

The IMD17 is set to these default settings

when Pins 2, 3, 4, and 5 are left open.