Specifications

221
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http://www.copleycontrols.com
Corporate Offices: 410 University Avenue
Westwood, MA 02090
FEATURES
• CE Compliance to
89/336/EEC
• Recognized Component
to UL 508C
• Complete torque ( current ) mode
functional block
• Drives motor with
60° or 120° Halls
• Single supply voltage
18-55VDC
• 5A continuous, 10A peak more
than double the power output of
servo chip sets
• Fault protected
Short-circuits from output to
output, output to ground
Over/under voltage
Over temperature
Self-reset or latch-off
• 2.5kHz bandwidth
• Wide load inductance range
0.2 to 40 mH.
• +5, +15V Hall power
• Separate continuous, peak, and
peak-time current limits
• Surface mount technology
APPLICATIONS
• X-Y stages
• Robotics
• Automated assembly machinery
• Component insertion machines
THE OEM ADVANTAGE
• NO POTS: Internal component
header configures amplifier for
applications
• Conservative design for high
MTBF
• Low cost solution for small
brushless motors to 1/3 HP
PRODUCT DESCRIPTION
Model 503 is a complete pwm servoamplifier for applications using DC
brushless motors in torque ( current ) mode. It provides six-step commu-
tation of three-phase DC brushless motors using 60° or 120° Hall
sensors on the motor, and provides a full complement of features for
motor control. These include remote inhibit/enable, directional enable
inputs for connection to limit switches, and protection for both motor and
amplifier.
The /Enable input has selectable active level ( +5V or gnd ) to interface
with most control cards.
/Pos and /Neg enable inputs use fail-safe (ground to enable) logic.
Power delivery is four-quadrant for
bi-directional acceleration and deceleration of motors.
Model 503 features 500W peak power output in a compact package
using surface mount technology.
An internal header socket holds components which configure the various
gain and current limit settings to customize the 503 for different loads and
applications.
Separate peak and continuous current limits allow high acceleration
without sacrificing protection against continuous overloads. Peak current
time limit is settable to match amplifier to motor thermal limits.
Header components permit compensation over a wide range of load
inductances to maximize bandwidth with different motors.
Package design places all connectors along one edge for easy connec-
tion and adjustment while minimizing footprint inside enclosures.
High quality components and conservative ratings insure long service life
and high reliability in industrial installations.
A differential amplifier buffers the reference voltage input to reject
common-mode noise resulting from potential differences between
controller and amplifier grounds.
Output short circuits and heatplate overtemperature cause the amplifier
to latch into shutdown. Grounding the reset input will enable an auto-
reset from such conditions when this feature is desired.
Model 503
DC Brushless Servo Amplifier