Chapter 1: Introduction; Figure 1-1: Npaq Drive Chassis - Aerotech Npaq DL 4010 Series Hardware Manual

Introduction

Chapter 1: Introduction

The Npaq® is a high-performance, 6-axis drive rack with field replaceable front-mounted drives. All versions
are 3U in size, rack-mountable, and compatible with the Automation 3200 motion platform.
3U plug-in drives
l
19 inch rack-mount design
l
Flexible design provides the ability to drive brush,
l
brushless, or stepper motors with the same
amplifier
5 A to 30 A peak output current
l
PWM or linear amplifier
l
Integral power supplies
l
Featuring high-performance double-precision DSPs, the Npaq family performs both current loop and servo-
loop closures digitally to assure the highest level of positioning accuracy and rate stability. It is this
processing capability that allows the Npaq to provide loop closure rates up to 20 kHz and to handle both
digital and analog I/O processing, data collection, laser firing, and encoder multiplication tasks in real time.
Standard options for the Npaq family include integrated encoder multiplication, per-axis brake control logic,
I/O expansion, and integrated emergency stop circuitry.
The Npaq uses plug-in amplifiers supporting both linear and PWM topologies to control brushless, DC brush,
or stepper motor types at up to 320 VDC operating voltage and 30 A peak current capability. The Npaq
contains two configurable power supply sections to support a variety of motors with different operating
www.aerotech.com
IEEE-1394 FireWire interface
l
Digital current, velocity, and position loops for
l
improved motion stability
Optional Ethernet for I/O expansion
l
Integrated encoder multiplier for higher
l
throughput and reduced wiring
Encoder feedback
l
NRTL approval and CE compliant
l
Figure 1-1: Npaq Drive Chassis
Chapter 1
Npaq® Hardware Manual
15