Servo Amplifiers for Brushed DC Motors

Product catalog summary

Introduction
ElectroCraft® is a global leader in providing fractional-horsepower motor and motion control solutions for industrial and commercial applications, with headquarters in Dover, New Hampshire, USA, and operations across the United States, Europe, and Asia.

Product Overview
This document outlines the specifications and features of servo amplifiers for brushed DC motors, emphasizing their 4-quadrant operation, power supply voltage range (11-70 VDC), and nominal current range (2-40 A).

Specifications

DA4303: 4-Q linear, 11-30 VDC, 3 A nominal current, suitable for motors up to 75 W.
DA4709/DA4718: 4-Q PWM, 11-70 VDC, 9/18 A nominal current, suitable for motors up to 1260 W.
SCA-LE-30-03: 4-Q linear, 11-30 VDC, 3 A nominal current, suitable for motors up to 75 W.

Features

Durable miniature aluminum case.
Tool-free mounting and easy integration.
Protection against overcurrent and overtemperature.
Adjustable current limitation and ramp function.
Operation mode setting via DIL-switches or jumpers.

Technical Details

Power supply voltage: 11-70 VDC.
Nominal current: 3-18 A depending on the model.
Control inputs include set value, tacho, and enable signals.
Outputs include auxiliary voltage sources and supervision output for error indication.
Mechanical dimensions vary by model, with weights ranging from 180g to 360g.

Environmental Conditions

Operating temperature: -10 to +45°C.
Storage temperature: -40 to +85°C.
Humidity range: 20-80% relative, non-condensing.

Conclusion
ElectroCraft® servo amplifiers are engineered for robust performance across various applications, offering flexible mounting and operation modes, along with comprehensive protection features.

Additional Specifications

Power Supply Voltage: 12 - 32 VDC
Nominal Current: 3 A
Maximum Power with Heatsink: 75 W
Operation Temperature: -10 to +45°C
Storage Temperature: -40 to +85°C
Humidity Range: 20 – 80% relative, non-condensing

Mechanical Data

Dimensions: Approximately 103 x 70 x 39 mm
Weight: Approximately 165 g
Mounting Hole Distance: 96 x 54 mm

Control Inputs

Set Value 1: -10 to +10 VDC
Set Value 2: -3 to +3 VDC
Disable: Open collector / TTL / CMOS / Switch

Outputs

Auxiliary Voltage Source for External Potentiometer: ±3 VDC / 50 mA
Auxiliary Voltage Source: +5 VDC / 50 mA

Operation Modes

Speed-control by voltage
Torque-control
IxR-compensation
Speed-control by DC-tacho

Contact Information
ElectroCraft Ltd., 4 Crewe Trade Park, Gateway, Crewe Cheshire, CW1 6JT, United Kingdom. Phone: +44 (0)1270 - 580142, Fax: +44 (0)1270 - 251240, Email: [email protected], Website: www.electrocraft.com

Servo Amplifiers for Brushed DC Motors

Servo Amplifiers for Brushed DC Motors

All Electrocraft catalogs and technical brochures

Archived catalogs