Parker: BD-E Series Brushless Servo Systems (BD-XXXX)
The BD-E Series EMC-Compliant Brushless Servo Systems
Direct-On-Line Operation with EMC Compliance With the
introduction of the BD-E Series, Parker makes available a high-performance
brushless servo system which is CE marked and complies with the European EMC
and Low voltage Directives.
Building on experience gained with the highly-successful BLH
Series, Parker has incorporated a large number of improvements to produce a
servo system with outstanding flexibility. A major advance is the introduction
of direct-on-line operation at 230V AC without the additional size, weight and
cost of a separate transformer. All line filter components necessary for EMC
compliance are built into the drive—this eliminates all potential problems
associated with the mounting and wiring of external filter units.
High-resolution sinusoidal commutation guarantees smooth
rotation over the full speed range. The redesigned MD Series motors now have
larger shafts with improved dimensional tolerances to aid the fitting of
components such as precision gearboxes. All drive configuration is performed
using dip switches located on the front panel.
BD-E Series drives have comprehensive built-in monitoring
systems to protect both the drive and the motor. An I-t circuit limits the time
for which any given motor current can flow before being clamped at the
continuous rating of the drive. An additional monitor circuit guards against
full drive current being delivered for an extended period at very low speeds.
As well as protecting against supply overvoltage or undervoltage, partial
supply failure, excess output current and overheating of the drive or motor,
the BD-E also checks for overspeed conditions and loss of commutation or
position feedback signals. With commutation data being derived from the
incremental encoder, there is automatic tach fault protection since loss of the
encoder signal will prevent commutation and therefore stop the motor.
The BD-E Series is available with a choice of current ratings
and in three versions—an analog-input velocity or torque servo, a step and
direction input version, and a complete positioning system incorporating the
new X150E controller. As well as being fully EMC-compliant, this controller
offers the convenience of configuring entirely by software, without the use of
jumper links. The X150E is compatible with almost any type of PLC—both NPN and
PNP output drivers are incorporated as standard, selectable by software. Inputs
and outputs may be configured to operate at 5V or 24V. The command language is
based on Compumotor’s popular XCode, which is user-friendly and extremely
versatile. The controller can store up to 64 complete motion programs in its
non-volatile memory and offers advanced programming features such as
conditional branching and math functions.
BD-E Series Common Features
• Direct operation from 230V AC single-phase supply
• Fully EMC and LVD compliant with all line filter components
built in
• Two current levels —3A and 6A continuous
• Peak torques up to 14Nm
• Speeds up to 5,000 rpm
• Commutation, velocity , and position by integral
incremental encoder, with separate initialization encoder
• High-efficiency recirculating PWM current control system •
Integral regenerative power dump
• Rugged industrial housing
• All configuration either by switches or software
• Drives fully protected against overheating, short circuits
and supply faults
BD-E Features
• Velocity or torque mode operation
• Industry-standard differential analog inputs
• Velocity and torque monitor outputs
• Compatible with Parker 6000 Series controllers
BDS-E Features
• TTL-compatible step and direction inputs
• Compatible with Parker 6000 Series indexers
• Velocity and torque monitor outputs
BDHX-E Drive/Controller Features
• Up to 32 drives can be daisy chained or multi-dropped via
RS-232C
• Non-volatile memory stores up to 64 motion programs
• 7-segment diagnostic display
• Dedicated inputs for end-of-travel and home position
switches
• 10 user-definable inputs, 6 outputs
• Sinking or sourcing outputs; software selectable
• Optional remote panel or thumbwheel input
• High-speed (15 µS) registration input