ELMO WLWHIA20 100 Servo Drive: High Performance Digital Servo Drive from Whistle Series

Product Overview

The ELMO WLWHIA20 100 is a high-performance digital servo drive belonging to the SimplIQ Whistle series, engineered for precise motion control in industrial automation applications. This servo drive combines exceptional power density with a compact form factor, allowing it to deliver substantial power output while occupying minimal panel space. The WLWHIA20 100 functions as a servo amplifier that converts digital control signals into precise motor drive outputs, regulating current, voltage, and feedback signals in real time to achieve accurate speed, position, and torque control. The drive is designed for use with a wide range of motor types, including DC brushless motors, DC brushed motors, and linear motors, making it a versatile solution for diverse motion control requirements.

Key Features of ELMO WLWHIA20 100

The Whistle series incorporates Elmos SimplIQ motion control technology, which integrates advanced current, velocity, and position control algorithms into a compact digital drive architecture. The WLWHIA20 100 achieves high power density through innovative power stage design and efficient thermal management, allowing continuous power delivery without derating in typical industrial operating conditions. The drive supports multiple command input types, including analog voltage, pulse-and-direction, and various network protocols, providing flexible integration with host controllers. Built-in protection features include overcurrent shutdown, overtemperature monitoring, short-circuit detection, and undervoltage lockout, ensuring reliable operation and protecting both the drive and the connected motor from damage.

The WLWHIA20 100 operates from a DC power supply and provides sinusoidal commutation for brushless motors, delivering smooth torque output with minimal cogging. The drive includes configurable digital I O ports that can be assigned to functions such as enable, fault reset, brake control, and general-purpose input or output. The SimplIQ command set provides access to over 1000 configurable parameters, allowing engineers to fine-tune drive performance for specific motor and load characteristics. The drive also supports real-time drive communication commands for integration with EtherCAT, CANopen, Ethernet, USB, and RS232 networks.

Technical Specifications

• Manufacturer: Elmo Motion Control

• Part Number: WLWHIA20 100

• Series: SimplIQ Whistle Series

• Product Type: Digital Servo Drive / Servo Amplifier

• Motor Compatibility: DC brushless, DC brushed, linear motors

• Control Modes: Current, velocity, position

• Commutation: Sinusoidal for brushless motors

• Protection Features: Overcurrent, overtemperature, short circuit, undervoltage

• Communication Options: EtherCAT, CANopen, Ethernet, USB, RS232

• Configurable Parameters: Over 1000 commands via SimplIQ

• Mounting: Panel or PCB mount

Functional Description

The ELMO WLWHIA20 100 operates as a fully digital servo drive, implementing current loop, velocity loop, and position loop control within its onboard processor. When configured for position control mode, the drive receives target position commands from a master controller, calculates the required motor current to achieve the desired motion profile, and continuously adjusts output based on feedback from encoders, resolvers, or Hall sensors. In velocity mode, the drive maintains commanded rotational speed by regulating motor current in response to speed feedback. Torque mode applications utilize the drives current control capability to maintain a consistent torque output independent of motor speed. The SimplIQ command set allows users to define motion profiles, set software limits, configure homing sequences, and implement custom fault handling routines.

Applications

The ELMO WLWHIA20 100 servo drive is deployed in motion control applications requiring high precision and high power density. Typical applications include medical robotics, semiconductor wafer handling equipment, laboratory automation systems, aerospace actuation, and industrial pick-and-place machinery. The drives ability to commutate brushless motors using sinusoidal output provides smooth motion essential for applications involving camera positioning, scanning systems, and precision dispensing equipment. The ultra-compact size makes the Whistle series particularly suitable for integration into portable equipment, robotic joints, and other space-constrained motion control systems.