SAC-SW Series Servodrive0 pages

ServoWire® Digital Drives
Digital Servodrives
ORMEC -1- SERVOWIRE® DRIVES
ServoWire® digital drives provide high
performance servo operation utilizing
digital networking technology based
on IEEE-1394 (FireWireTM). This
network not only provides high speed,
but also ease of use through costeffective,
industry-standard cabling.
Each ServoWire® drive supports a wide
variety of high performance, encoderbased
servomotors. Consult ORMEC
for OEM applications of user-supplied
brushless rotary or linear motors---as
well as DC brush-type and voice-coil
motors.
Eight drive models range from 600
to 15,000 watts, and offer continuous
current output from 2.4 to 60 amps
RMS/phase. All ServoWire® drives
utilize reliable IGBT-based intelligent
power modules and provide a cost
effective solution for today’s motion
control applications. ServoWire®
drives operate on 115 or 230 VAC input
power, and provide both output short
circuit and overvoltage protection.
All-digital design eliminates the
troublesome analog interface between
controller and drive systems, replacing
it with a modern high speed network
based on the IEEE-1394 standard.
Performance
ServoWire® drives combine alldigital
operation with DSP technology
to produce fast update rates and
current loop bandwidths up to 1200Hz.
High bandwidth current loops teamed
with high resolution motor feedback
combine for quick and accurate torque,
velocity and position control.
Programmable Drive Configuration
ServoWire® drives have no pots,
jumpers or field component changes
whatsoever. Even factory adjustments
are digital, automatically calibrated
and stored in Flash memory. All user
configurations are done in software
using axis configuration tools in our
MotionDeskTM software. Motor types
are selected from a database of
ORMEC standard products or the
custom motor editor can be used to
add other motor types to the database.
ServoWire® Drives -- At A Glance
Eight models: offering continuous output currents from 2.4 to 60 amps RMS/phase.
All-digital design: eliminates all manual drive setup including pots and jumpers
Small footprint: provides high power density and reduces space requirements.
Sinusoidal commutation: improves low speed torque ripple and system efficiency.
Trapezoidal commutation & DC operation: provide user flexibility.
Integral shunt regulators: add protection (All models except SAC-SW203 & SW205).
UL/CE approvals: UL Listed and CE Mark (low voltage directive & EMC).
Status Indicators: Large two-digit display for
showing network ID and drive status plus six LED
indicators which show condition of sensors, travel
limits and motor over-temperature.
ServoWire® Network Interface: Two
connectors provide an all-digital control link to
ServoWire® Drive Network. Network interface is
galvanically isolated from the drive and powered by
the ServoWire® Axis Module.
Drive Power Inputs: Universal voltage input
power accepts 115 or 230 VAC nominal featuring
separate logic and bus power supplies with
overvoltage protection.
Flexible Drive I/O: ServoWire® drives provide
three high speed sensor inputs, up to six optically
isolated programmable limit switch (PLS) outputs-
-(one of the PLSs can be used as a userconfigurable
fail-safe brake control output), two
overtravel limit switch inputs, plus two high quality
analog outputs for monitoring motor velocity and
torque. Convenient screw terminal pluggable
connectors.
External Regen & Bus Connections:
Allows bus power to be shared between drives and/
or the addition of an external resistor for
dissipating regenerative energy from the system
(All models except SAC-SW203 & SW205).
Brushless Motor Feedback Interface: Versatile encoder feedback interface
accommodates differential or single-ended hall tracks, quadrature feedback, and optionally
support the multi-revolution, absolute encoders available on ORMEC’s D-Series motors.
Auxiliary Encoder Input Option: Provides an additional connector for a pacer encoder
when applications require addition positioning information for web control applications. Also
to be used for distributed feedback applications.
Configurations for each drive
containing the motor parameters, all
operational limits for torque and
speeds, I/O configurations, load inertia
and servo loop tuning parameters are
stored in the ORION® controller as
part of a system project and
automatically downloaded at power up
over the ServoWire® network. Simple
cabling accommodates up to eight
drives per network, and provide for
quick and reliable installation.
Standard Motor Interface
ServoWire® drives interface
encoder based motors using
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