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AlphaStep
CRK Series 5-Phase Step Motor and Microstep Driver with Built-in Controller
CRK + Series
Vibration
The CRK Series with a built in controller is a compact, space saving 5-phase stepping motor and driver package with a powerful, feature-rich controller built in. The driver supports stand alone or RS-485 communications with multi-drop capability for network operation and I/O control.

5-Phase Motor Features

  • Lower Vibration
  • Increased Position Accuracy
  • Higher Resolution

3 Operating Modes

  • Direct Command - entry from terminal, PLC or master controller
  • Stand Alone Operation - running stored programs selected via I/O
  • Variable Data - any settable parameter or variable values entered/changed via direct entry from a host will be used by the stored sequence.

RS-485 CommunicationsRS-485 Communications

  • Multi-Drop up to 16 units
  • PLC or PC based programming
  • Warning, Error and Alarm detection

Motion Profile Examples

  • Repetitive Positioning
  • Stop via Sensor Input
  • Continuous Operation at Variable Speeds
  • Linked Motion, up to 4 Maximum
  • Mechanical or Electrical Return to Home
  • PLS-OUT Function - Drive a second driver with the same pulse count as the first motor.

 

Space Saving Driver

Driver

The compact driver with built-in controller saves space.

The driver can be mounted on a DIN Rail.


General Specifications

Connection Methods

ASCII Commands via RS-485, no need for dedicated software

Transmission Rate

Selectable up to 115,200 bps

Input Signals

11 Dedicated and 6 General Purpose

Output Signals

2 Dedicate and 4 General Purpose

Number of Sequences

64 Maximum

Power Source

24 VDC

Motor Types

High-Resolution Type Motors

High-ResolutionThe positioning accuracy of a stepping motor is affected by the friction of the load.

The high-resolution type achieves high accuracy and reliability based on Oriental Motor's latest precision machining technology. The motor resolution is increased to double the level of a standard model to reduce the displacement angle against load torque, thereby acheive high positioning accuracy. Vibration is also reduced.

High-Resolution

The high-resolution type is designed with a stop position accuracy of 2 arc minutes (0.034°) [standard type: 3 arc minutes (0.05°)]. The reduced error helps improve the positioning accuracy of your equipment.

Static Angle Characteristics

High-Torque Type Motors

High-TorqueThe high-resolution type and high-torque type adopt a newly designed high-torque motor that widens the range of applications.

  • The smaller motor allows for compact equipment design.
  • The motor current is reduced to suppress heat generation.

Example: Avoidance of temperature rise in precision equipment or machinery.

Speed-Torque

Standard Type Motors

StandardThe basic model in the CRK Series offering an optimal balance of torque, low vibration and low noise.

Geared Type Motors

TH GearedTH (Tapered Hob) Geared Type

A geared motor achieving both low backlash and low cost.
• Backlash: 10 ~ 60 arc minute


RoHS Compliant

RoHS (Restriction of Hazardous Substances) Directive:
Directive on restriction of the use of certain hazardous substances in electrical and electronic equipment (2002/95/EC).
The RoHS Directive prohibits the use of six chemical substances in electrical and electronic products sold in the EU member states. The six controlled substances are: lead, hexavalent chromium, cadmium, mercury and two specific brominated flame-retardants (PBB and PBDE).


Also Available

NEW! 5-Phase On-Board Type Driver

DS Series DS Series Step Motor Driver

Allows for easy adoption of the 5-phase motor advantage for applications that are struggling to meet the desired results or those desiring to improve their current machine by offering:

  • Lower Vibration
  • Increased positioning accuracy
  • Higher resolution
  • More efficiency, reduced current requirements

NEW! CRK Series Pulse Input Package

CRK SeriesCRK Series 5-Phase Microstep Motor and Driver Packages

The CRK Series is a motor/driver unit combining a high-performance, 5-phase stepping motor with a compact, low-vibration microstepping driver offering the Smooth Drive Function.

  • Compact, Board-Level Driver
  • Pulse-input
  • Lower Vibration and Noise
  • Higher resolution

Product Lineup

Type
 Features
Motor Frame Size
Basic Step Angle
Max. Holding Torque

High-Torque
High-Torque

 A high torque motor generating high torque of approx. 1.3 to 1.5 times the level achieved by the standard type.
0.72°
3.2 oz-in
(0.0231 N·m)
6.8 ~ 11 oz-in
(0.048 ~ 0.078 N·m)
34 ~ 59 oz-in
(0.24 ~ 0.42 N·m)
High-Resolution
High-Resolution
 A high-torque motor offering higher positioning accuracy with the basic step angle set to 0.36°/step, or half the basic step angle of the standard type.
0.36°
5.9 ~ 12.7 oz-in
(0.042 ~ 0.09 N·m)
34 ~ 59 oz-in
(0.24 ~ 0.42 N·m)
110 ~ 320 oz-in
(0.78 ~ 2.3 N·m)
Standard
Standard
 The basic model in the CRK Series offering an optimal balance of torque, low vibration and low noise.
0.72°
18.4 ~ 34 oz-in
(0.13 ~ 0.24 N·m)
59 ~ 230 oz-in
(0.42 ~ 1.66 N·m)
Low Backlash
 A geared motor achieving both low backlash and low cost.
• Backlash: 10 ~ 60 arc minute
0.024° - 0.1°
28 ~ 71 oz-in
(0.2 ~ 0.5 N·m)
0.024° - 0.2°
3 ~ 13.2 lb-in
(0.35 ~ 1.5 N·m)
11 ~ 35 lb-in
(1.25 ~ 4 N·m)

View Products = View all available part numbers for CRK Series Step Motor and Driver Systems