Driver for AC Servomotors (EA Series)

Product catalog summary

Overview
This document provides technical specifications and installation guidelines for the EAD-18C and EAD-18D models, which are 3-phase sine wave PWM drivers designed for Citizen Chiba Precision’s miniaturized AC servomotors. These drivers operate on a DC24V single power source and feature digital servo control using a CPU.

Specifications

Input Power Supply: DC24V
Continuous Rated Output Current: 1.2Arms
Maximum Rated Output Current: 3.0Arms
Driving System: 3-Phases Sine Wave PWM
Control System: Position Control
Encoder Type: Open Collector or Line Driver
Operating Temperature/Humidity: 0～50℃ / Below 80% RH without condensation
Storage Temperature/Humidity: －20～80℃ / Below 80% RH without condensation
Outside Dimension: 125×44×81.5 mm
Maximum Input Frequency: 600kHz
Positioning Accuracy: ±1 pulse by encoder resolution

Installation and Configuration
The document includes a circuit drawing and installation dimensions for mounting the driver. It specifies the use of aluminum PCB mounting chassis and provides details on connectors for input/output.

Options and Accessories
Extension cables with line driver options are available for both direct and indirect connection types. The document advises on selecting the appropriate line driver type for improved noise immunity and provides reference drawings for cable combinations.

Notes

Another circuit board is required for Line Driver mounting.
Input frequency is determined by the number of pulses of the encoder and the rated speed of the motor.
For changes from Open Collector Type to Line Driver Type, contact the provider for arrangements at the customer's expense.

Catalog excerpts

Driver for AC Servomotors (EA Series) EAD-18C for Open Collector EAD-18D for Line Driver ■ Outside Conﬁguration & Install Dimension (Unit: mm) ■ Features ● This is 3-phases sine wave PWM driver ● This is a driver exclusive for Citizen Chiba Precision s Miniaturized AC Servomotor ● It is downsized by adopting digital servo control which uses CPU ● DC24V single power source (Built-in control power source) M3 Tapped Hole for Frame Ground Aluminum PCB Moun�ng Chassis Power Source to Drive Motor USB Transceiver Pulse Counter Micro Controller Serial I/O Parameters Se�ng Processing 3 Phases Alterna�ng Current/ d-q Coodinate Converter Input / Output Control Posi�on Controller 3-Phases Motor Drive Circuit Posi�on Command Motor Current Detec�ng Circuit Current Controller Speed Controller 3 Phases Alterna�ng Current/ d-q Coodinate Converter Mechanical Angle θ Electrical Angle θ Speed / Posi

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The last 3 digits, 012, of the model number is for EA-17 / EA-21 Series, and 030 is for EA-25 / EA-30 Series Model Input Power Supply Continuous Rated Output Current Maximum Rated Output Current Driving System Control System Encoder Type Encoder Input Hall Sensor Limit Sensor Maximum Input Frequency Positioning Accuracy Multiplication Function of Encoder Command Multiplication Function φZ Output Logic Operating Temperature/ Humidity Storage Temperature/ Humidity Outside Dimension Accessories 3-Phases Sine Wave PWM Position Control Open Collector or Line Driver φA、φB、φZ φU、φV、φW (Hall IC) *Line...

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Driver for AC Servomotors (EA Series)

Driver for AC Servomotors (EA Series)

Catalog excerpts

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