Ensemble Epaq
Up to six integrated drives in
one stand-alone controller
Additional external drive axes can be added to provide up
to nine axes of coordinated motion
Controller architecture capable of coordinating motion of
up to five independent tasks
Capable of driving and controlling linear or rotary brushless,
DC brush servo, and micro-stepping motors
Complete motion capabilities include: point-to-point, linear
and circular interpolation, electronic gearing, velocity
profiling
Program in AeroBasic™ with the IDE, Microsoft .NET including
C#, VB.NET®, Managed C++, or LabVIEW®
Remote ASCII interface provided for Windows® or non-Windows® programs (including Linux) to command the Epaq through standard
Ethernet, RS-232 port, and optional IEEE-488
Advanced Windows®-based remote diagnostics, tuning,
and programming interface software
Front panel display and control pad for convenient menu-driven
axis control and status checking
Axis jogging/control with optional joystick
Fully compatible with EPICS set of software tools
and applications, making Ensemble ideal for use in
synchrotron and general laboratory facilities
Allen-Bradley EtherNet/IP™ interface provides full
integration with the Ensemble; program the
Ensemble directly from RSLogix™ 5000
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The Ensemble™ Epaq is Aerotech’s
next-generation, stand-alone controller for moderate- to
high-performance applications. It offers functionality appropriate
for applications from basic laboratory experimentation and
general purpose positioning to advanced OEM systems at an
affordable price.
Versatile, Stand-Alone, Multi-Axis Control
The Ensemble Epaq is offered in a 6-axis desktop (rack-mount optional) version with display and jog pad. It contains integrated power supplies and pluggable motor and IO connectors. PWM amplifiers are offered to control brush, brushless, and stepper motors. Linear amplifiers are also available for high performance, low noise applications. Higher power external amplifiers may be daisy-chained to the Epaq using the high-speed AeroNet serial interface for a total of nine axes of coordinated motion.
This flexible configuration style allows users to seamlessly mix and match drive types (linear versus PWM, brush or brushless, stepper, etc.) within the same positioning system using a common programming and control platform.
Multiple Epaqs can be controlled from
one Windows PC through Ethernet or USB. Optional on-board
encoder interpolation offers the user programmable axis
resolution (assuming a sine-wave encoder input signal),
including the ability to change interpolation (multiplication)
values through software.
Powerful and Intuitive Programming Functionality
Unlike most controllers on the market today, there is no
need to understand a cryptic command set to generate motion.
The intuitive interface allows a user to begin programming
immediately. Ensemble online help further simplifies writing
motion programs and includes many functional examples that
can be easily modified for customer applications.
The Ensemble with Integrated Development Environment software
offers a graphical user interface in Windows®,
featuring an intuitive Program Editor, Variable Output window,
Compiler Output window, and Task State monitor. This interface
enables users to easily monitor all aspects of their positioning
system, no matter how complex. The Axis Control and Diagnostic
screens are further supplemented by a fully functional Autotuning
utility that minimizes startup time and allows easy optimization
of motion axes. System diagnostics are easily read from
the interface. The Windows-based remote software package
is included with each unit, which allows the user to upload/download
programs, modify parameter files, and analyze motion with
Aerotech’s advanced graphical tuning package, all
from the convenience of a remote PC.
Whether operated in stand-alone mode through the front panel
or by remote control through Ethernet or USB, the full functionality
of the Ensemble Epaq is available. On-board configuration
and monitoring utilities simplify remote communications.
To allow easy serial connectivity and ease of use, the Epaq
features an RS-232 port (additional RS-232 port is an option)
and an optional IEEE-488 port.
| Output Voltage |
VDC |
24 V, 48 V, 54 V, 90 V options |
10-40 V (Bipolar) |
| Peak Output Current |
A |
10 |
10(1) |
| Continuous Output Current |
A |
5 |
5(1) |
| PWM Switching Frequency |
kHz |
20 |
N/A |
| Power Amplifier Bandwidth |
kHz |
Software Selectable |
Software Selectable |
| Minimum Load Inductance |
mH |
0.1 @ 54 VDC |
0 |
| Operating Temperature |
°C |
0 to 50 |
0 to 50 |
| Storage Temperature |
°C |
-20 to 85 |
-20 to 85 |
| Weight |
kg |
0.5 |
0.5 |
Notes:
1. Actual current ratings dependent on motor resistance.
Advanced DSP Control
The Ensemble Epaq uses the processing power of multiple
double precision, floating-point DSPs to offer exceptional
performance in a variety of applications, including point-to-point
motion, linear and circular interpolation, single- and multi-axis
error correction, direct commutation of linear and rotary
brushless servomotors, and on-board servo autotuning. High-speed
interrupts and data logging capabilities provide a real-time
link to external systems. The Ensemble Epaq also offers
high-speed position latching capability and optional single-axis
PSO (Position Synchronized Output). Whether the requirement
is simple point-to-point motion or complex velocity profiled
contours with output on the fly, Ensemble ensures peak performance
for critical applications.
Integral Drives
Brushless servo, DC brush servo, and microstepping drives
are integrated into the Ensemble Epaq compact frame. The
Epaq can control any combination of up to six integral drives,
while the Ensemble architecture is capable of further expansion
(with external stand-alone, single-axis drive units) to
up to nine total axes. Because the Epaq can control many
different types of motors, customers have excellent flexibility
in their system designs. High accuracy linear motor air-bearings
can be controlled from the same controller running lower
precision drives with servo or stepper motors. Parameters
are easily reconfigured for these various motors and feedback
devices, so customers can adapt to changing system needs.
Expanded Input/Output Capability
Each Epaq features an optional IEEE-488 parallel port, second
RS-232 port, and axis expansion port. On a per axis basis
the Epaq also features an optional I/O package offering
eight digital inputs and outputs, one 12-bit ±10
VDC analog input, one 16-bit ±5 VDC output, a configurable
brake output, a second TTL encoder input for dual loop control,
and either a second marker input or PSO output. This optional
I/O package can be added to each axis so numerous I/O can
be connected to the Epaq.
Enhancing a Legacy of Success
Although Ensemble is envisioned as a general-purpose, stand-alone
controller, it carries forward a legacy of success built
from Aerotech’s hugely successful A3200 and Soloist™
controllers. It offers enhanced capabilities that make it
an ideal choice for many aggressive motion control applications.
The Ensemble motion control architecture builds upon the
Soloist intuitive graphical user interface, while offering
advanced features appropriate for multi-axis control. Ease
of use is further improved with pre-coded LabVIEW® VIs, AeroBasic™ programming functionality, .NET tools
for C#, VB.NET, and managed C++.
Allen-Bradley Interface
Combine proven PLC with proven motion control for easier
integration, startup, and maintenance of medium- and high-end
automation projects. The Aerotech EtherNet/IP™ interface enables AB PLCs (MicroLogix, CompactLogix™,
or ControlLogix) to be integrated directly with the
Ensemble. Motion can be directly programmed in the
RSLogix 5000 environment or separate programs can be
written on the controller and triggered from the AB PLC.
Aerotech has two interfaces: ASCII and Register. Choose
the PLC, motion controller, and interface that best fits your
application needs.
EPICS Drivers
Each Ensemble installation includes full compatibility with
the EPICS open source distributed control system. EPICS is
used worldwide at leading light source (synchrotron)
facilities and other government laboratories, allowing
Ensemble to seamlessly integrate into applications at all
major research institutions.
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