Elmo RAV-25/60, EXTRA IQ RAVEN manual Product Description, Standard Features, Fault Protection

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Raven Installation Guide

Introduction

MAN-RAVIG (Ver. 1.1)

 

 

 

2-2

2.2Product Description

The Raven is a series of miniature ExtrIQ current mode servo amplifiers for brushless motors with sinusoidal commutation. Although highly compact, the Raven can withstand extended environmental conditions and support up to 35 Amps. This high power density servo amplifier can deliver up to 4800 W of peak power or 2400 W of continuous power in a miniature package. The servo amplifier offers significant operating features including excellent output linearity and zero dead band performance.

The Raven incorporates custom mixed analog/digital ICs and a hybrid power stage. The basic configuration is a current mode amplifier targeting the OEM market. As such, no trimmers are used in the basic version. In addition to its compliance with relevant MIL standards, the Raven amplifier also meets UL508c and the relevant CE regulations.

The Raven power stage is implemented on a single ceramic substrate. This design enables very high thermal conductivity, high current carrying capacity, improved EMC and good mechanical strength. The control section is implemented by dedicated custom ICs that contribute to enhanced performance.

2.3Standard Features

Operation in current mode

Internal DC-to-DC converter, which allows for operation from a single supply Zero deadband

Excellent linearity One differential input Motor current monitor

Current gain change for low inductance motors Remote current gain control

Current feedback multiplier for low current motors

Status indication and remote control functions by four open collector transistors External continuous and peak current-limit adjustments

Interface via soldering pins

Package: plated-copper base plate, plastic housing, UL94V0 recognized Ultra-compact size

2.4Fault Protection

Built-in protection against possible fault conditions, including:

Shorts between the outputs or between each output and the power input/return Over-temperature

Under/over voltage

Failure of internal power supplies Latch mode for each protective feature Under/over voltage

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Contents Raven April 2008 VerRAV- XX/YYY VerContents Safety 4 EMC Workmanship 6 PCB Packing Weee RoHS Safety Information Cleaning after solderingConformance to Standards Introduction ExtrIQ Product FamilyProduct Description Standard FeaturesFault Protection 1Raven Block Diagram How to Use this Guide Installation Feature ValueSite Requirements Unpacking the Amplifier ComponentsRaven Dimensions 1Raven Dimensions1Dimensions in Millimeters Mounting the RavenMounting the Heatsink Mounting on the PC BoardWiring the Raven Basic Wiring3Raven Power Connections ConnectionsPin Functions Pin Function Remarks4Connector J1 Pin # Short Form Function Remarks5Connector J2 Elcl6Connector J3 AOKAmplifier Voltage Range 50 55 100 200 DC Power SupplyVdcmin Vdc 0.9 Vdcmax CFM Current Command InputServo Control Operation Current Gain Control CGC 2Minimum Inductance ValuesExternal Current Limit Continuous Eclc External Current Limit Peak EclpExternal Voltage External ResistorLatch Mode LM Amplifier Enable LogicStatus Indications 3Raven Status IndicationsElectrical Specifications Appendix Technical SpecificationsPower Ratings Mechanical Specifications Environmental ConditionsDesign SafetyStandards Compliance Quality Assurance RoHS WorkmanshipPacking Raven Installation Guide