Eurotherm Drives 590 DRV Digital, Product Manual

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Chapter 1 Introduction
590 DRV Digital DC Drive Product Manual
Chapter 1 INTRODUCTION
SCOPE
This manual covers the 590 DRV Digital series of regenerative and non-regenerative
DC motor controllers.
OVERVIEW OF THE 590 DRV DIGITAL DRIVE
The 590 DRV Digital drive is a DC motor controller package containing a 590 Digital
DC drive, DC contactor, AC supply fusing to protect the DC drive's thyristors and a
control power transformer. For models rated 7.5 through 100 HP (500 VDC armature
applications), all parts are mounted in a rugged, black anodized aluminum chassis. The
components for all higher horsepower models mount on a panel. 500 through 900 HP
models include a separate, external thyristor stack.
The 590 DRV Digital drive controls the DC output voltage and current for DC shunt
field and permanent magnet motors. Models rated through 100 HP accept standard,
three-phase, 208/230/380/415/460 volts AC, 50/60 Hz supplies; for models rated 125
through 900 HP, the supply is limited to 230/460 VAC.
The 590 DRV Digital drive is available as a four-quadrant, regenerative or a two-quadrant, non-regenerative drive. Each
includes full transient and overload protection and uses highly advanced electronic control of motor acceleration and
deceleration of speed and torque. Regenerative drives include two fully controlled thyristor bridges for forward and reverse
control of speed and torque. Non-regenerative units have one thyristor bridge for operation in only one direction of rotation.
The Man Machine Interface [MMI] display simplifies start up and troubleshooting by automatically displaying the
first fault. It is a powerful diagnostic tool with access to all alarms and most parameters within the drive. Light
emitting diode [LED] indicators on the front panel display the drive's operating status.
You can configure the drive software either through the MMI or with ConfigEd Lite, a configuration program compat-
ible with most IBM compatible personal computers (PCs) running Windows™.
NOTE. 590 DRV Digital DC drives rated through 300 HP are Underwriter Laboratory (UL
®
) approved
for use in the United States and Canada.
STANDARD FEATURES
Main Features
Microprocessor Control: a 16 bit microprocessor controls the drive and offers:
• Real-time fiber optic communications
• Complex control algorithms not possible with simple analog devices
• Control circuitry built around standard software blocks.
Digital Accuracy: All setpoints and variables are accessible either through analog inputs or digitally over a serial
computer communications link. Speed and current loops are processed digitally giving greater control accuracy
and repeatability than analog drives.
Feedback Options: the drive supports four types of speed feedback:
• Armature voltage feedback (standard), which requires no feedback device, connections or isolator
• Analog AC or DC tachometer generators
• Wire-ended electrical encoders
• Plastic (5701) or glass (5901) fiber optic Microtach encoders
Figure 1.1 - 590 DRV Digital
DC Drive