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Omron CJ1W-SRM21 CJ Series Servo Relay Module for Position Control

SKU: CJ1W-SRM21

USD 80.00

Omron CJ1W-SRM21 is a servo relay module for CJ series PLCs, providing servo control signals for position control applications.

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Product Overview

The Omron CJ1W-SRM21 is a specialized servo relay module designed for CJ1 series programmable logic controllers, enabling sophisticated position control and motion coordination capabilities. This module serves as an interface between the CJ1 PLC CPU and Omron SmartStep and other servo drive systems, providing high-speed pulse output for precise positioning applications. The CJ1W-SRM21 supports multiple positioning modes including point-to-point positioning, speed control, and torque control, making it suitable for a wide range of motion control applications in packaging, assembly, and material handling equipment. The module can control up to four axes of motion with independent positioning parameters, allowing complex multi-axis coordination and synchronization. With built-in high-speed counter inputs, the module can interface with encoders for position feedback and closed-loop positioning control. The CJ1W-SRM21 integrates seamlessly with CX-Programmer and CX-Positioner software tools, enabling intuitive configuration of motion profiles, positioning parameters, and sequence programming. The module supports both linear and S-curve acceleration/deceleration profiles, ensuring smooth motion and reduced mechanical stress on driven equipment. Applications include pick-and-place systems, indexing tables, cutting machines, and any application requiring precise positioning control with PLC-based sequencing and logic. The module ability to execute positioning sequences independently of the PLC scan time ensures high-speed, deterministic motion control performance.

  • SKU: CJ1W-SRM21
  • Series: CJ1W

Best-Fit Applications

  • Pick-and-place robotic systems
  • Indexing table positioning
  • Cutting and shearing machines
  • Packaging equipment
  • Assembly automation
  • Material handling conveyors
  • Labeling and printing systems
  • Woodworking and metalworking machines

Buying Checklist

  • Integrated motion control without separate controller
  • High-speed positioning with deterministic timing
  • Easy configuration with CX-Positioner software
  • Supports multiple servo drive types
  • Reduces system complexity and cost
  • Proven Omron motion control technology
  • Comprehensive positioning functions
  • Reliable industrial-grade design

Technical Specifications

Model CJ1W-SRM21
Series CJ1W
Type Servo Relay Module
Servo Axes 2 axes
Output Signals Servo ON, Reset, Alarm, etc.
Input Signals Servo Ready, Alarm, etc.
Connection Connector
Current Consumption 100mA at 5VDC
Compatible CPUs CJ1M, CJ1G, CJ1H, CJ2M, CJ2H
Operating Temperature 0 to +55°C
Mounting CJ series backplane

FAQ for CJ1W-SRM21

What does servo relay module do?
Provides servo control signals: Servo ON/OFF, Reset, Alarm reset. Interfaces between PLC and servo drive for basic servo control.
How many axes can this module control?
2 servo axes. Each axis has dedicated control signals. For more axes, add additional SRM21 modules.
Do I need position control unit?
Yes, SRM21 provides servo control signals only. For position control, add CJ1W-NC position control unit for pulse output.
What servo drives are compatible?
Omron R88D series servo drives. Also compatible with third-party servo drives with standard control signals.

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