EZHR17EN Stepper Motor Controller/Driver from AllMotion

EZHR17EN Stepper Motor Controller/Driver from AllMotionHigh Resolution Stepper Motor Driver Controller with Encoder

AllMotion's EZStepper was designed to allow the rapid implementation of stepper motor solutions in products requiring automation.

Measuring only 1.6" x 1.6" (40mm x 40mm), the fully intelligent stepper motor Controller + Drivers are designed to be bolted onto the back of the stepper motors that they control. A single 4-wire bus, containing 2 power wires and two communications wires, links up to 16 such stepper motor controllers in a daisy chain. Commands can be issued from any serial terminal program (such as HyperTerminal) or from the EZStepper Windows application.

The commands are intuitive and simple. For example, the command A10000 will move the stepper motor to Absolute position 10000. (This communications protocol is compatible with devices that use the Cavro DT or OEM protocol.)

The EZStepper is also capable of stand-alone operation with no connection to a PC. It can be set to execute a preset string of commands upon power-up (i.e., only power is required in this mode). The Commands include nested loops and execution halt pending a switch closure, which is useful in stand-alone applications.

The EZHR17EN Stepper Motor Controller will work with any stepper motor that is 3" or smaller (size 23 or smaller). Our starter kits enable a first time user to make a stepper motor move intelligently in less than half an hour.

Features

EZHR17EN Stepper Motor Driver Controller Features:

  • Single 4-wire bus linking up to 16 stepper motor controllers
  • 2 amp chopper (PWM) driver
  • Dual encoders, position maintain mode
  • Selectable step resolution from 1/2 to 1/256th step
  • Up to 20 million microsteps / second
  • Operates from 12V to 40V
  • RS232, RS485, or USB based communications
  • On board EEPROM for user program storage
  • Standalone operation with no connection to a PC
  • Execution halt/branch pending switch closure
  • Pre-wired for opto-switch inputs (see wiring diagram)
  • Fits on the back of a size 17 stepper motor
  • Industry standard communications protocol
  • Homes to an opto or switch closure with a single command
  • Fully programmable ramps and speeds
  • Four digital I/O and two 1 amp power on/off drivers included
  • Switch selectable address
  • Software selectable "Move" and "Hold" currents
  • Hold current automatically selected upon move completion
  • Optional second stepper on miniature daughter card
  • Optional bidirectional DC driver on miniature daughter card
  • 4 ADC inputs, branch halt on ADC value
  • RoHS compliant

Specifications

EZHR17EN Stepper Motor Driver Controller Specifications:

Model
Number
TypeVoltage
(VDC)
Current
(ADC)
Step Resolution# of
Axis
FeedbackBuilt-in Interface
EZHR17ENController + Driver10 - 4021/2, 1/4, 1/8, 1/16, 1/32, 1/64, 1/128, 1/2561EncoderRS485
RS232*
USB*
* RS232 & USB interface available when used with a RS485 Converter.

 

 

Q & A

Q&A Section with Expand/Collapse Icons

EZHR17EN Stepper Motor Controller/Driver Q & A

+ What is the EZHR17EN and what does it do?
The EZHR17EN is a compact, fully intelligent stepper motor controller and driver (about 1.6" × 1.6") designed to bolt directly onto the back of size-17 (≤ 3") stepper motors. It controls motion through programmable commands, encoder feedback, and PWM chopping.
+ What are the voltage and current specifications?
It operates from 10 V to 40 V DC and provides up to 2 A via a chopper (PWM) driver.
+ What step resolutions and motion performance does it support?
The EZHR17EN supports microstepping from ½ to 1/256 steps, and can handle motion speeds of up to 20 million microsteps per second.
+ How is it controlled and can multiple units be daisy-chained?
Control is via RS485, with optional conversion to RS232 or USB using adapters. Multiple units (up to 16) can be daisy-chained using a 4-wire bus (2 for power and 2 for communications).
+ Does it support standalone operation without a PC?

Yes—it includes onboard EEPROM and can run a preprogrammed sequence of commands at power-up, including nested loops and halt-on-switch features.

Downloads

Download EZHR17EN Stepper Motor Driver Controller Datasheet 


Talk to one of our automation experts today at (855) 737-4716, or fill out our online form to learn more.