Transcript RDD Presentation

RDD-Series (Bulletin RDB)
Bearingless Direct Drive
Rotary Servo Motors
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Copyright © 2008 Rockwell Automation, Inc. All rights reserved.
Direct Drive Motors by any other name . . .
. . . still mean improved performance and greater efficiency for your machine
Copyright © 2008 Rockwell Automation, Inc. All rights reserved.
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What is a Direct Drive Motor?
Direct Drive Motor:
Any motor whose design is specifically intended to allow for direct-coupling
to the load, thus improving system performance and efficiency by
eliminating the need for additional mechanical transmission components.
Copyright © 2008 Rockwell Automation, Inc. All rights reserved.
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Realize the benefits of a Mechatronic Solution
• The RDD-Series Rotary Direct Drive Motors
are part of the Rockwell Automation
mechatronic solutions portfolio.
• Mechatronic design is a collaborative venture
between mechanical, electrical, and control
design engineers – the outcome is a machine
design optimized for high performance.
• The Rockwell Automation mechatronics
offering includes: virtual design tools, products
and expertise.
Mechatronic products like the RDD-Series Motors provide tighter
coupling between the control and machine function, and help eliminate
backlash, compliance,
noise and energy losses.
Copyright © 2008 Rockwell Automation, Inc. All rights reserved.
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What are the benefits of Direct Drive Motors?
• Increased Machine Throughput
– Direct Coupling of Motor to Load Eliminates Compliance and Backlash
• Better control of the load
• More responsive system
• Optimal system performance
• Increased Customer Product Quality
– Significant Improvement in System Accuracy
• Lower Energy Consumption
– Reduced Mechanical Losses
• Friction
• Heat
• Noise
– No Inertia Matching
• “Right-size” the power for the application
Key Benefit: Increased System Performance and Efficiency
Copyright © 2008 Rockwell Automation, Inc. All rights reserved.
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What are the benefits of Direct Drive Motors?
• Simplified Mechanics
– Eliminates Components that Wear over Time
• Stable long-term accuracy
• Higher reliability
• Consistent quality
– Reduced Maintenance (lubrication, belt tensioning, tuning, etc.)
• Increased productivity
• Reduced scrap
– Lower Overall Part Count
• Lower purchasing burden
• Faster assembly
• Reduced spare parts inventory
• Smaller machine footprint
• Reduced Commissioning Time
– Simplified Tuning
Key Benefits: Increased System Reliability, Lower Total Cost of Ownership
Copyright © 2008 Rockwell Automation, Inc. All rights reserved.
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Rockwell Automation Direct Drive - Benefits
• Integrated Architecture
– Single source solution
– Single programming environment
– Smart Motor Technology (“plug-n-play”)
• Motion Analyzer Integration
– Simplified / optimized sizing and selection
• Old “rules of thumb” not sufficient to get full
utilization of products
– Mechatronics Capability
• Import 3D CAD files (SolidWorks)
• Mechanical animation and simulation
• Tuning simulation
– Database with Drive Compatibilities
• Catalog numbers
• Speed / torque curves
Copyright © 2008 Rockwell Automation, Inc. All rights reserved.
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Direct Drive Motors vs. Traditional Mechanics
Criteria
Belt or
Chain
Spur Planetary Direct
Gearbox Gearbox Drive
Comments
Upfront Engineering
(Time and Cost)
K
K
J
L
RDD motors designed into machine (traditional
motors bolted onto machine)
Acceleration
L
L
K
J
Lower system inertia = faster acceleration
Compliance &
Backlash
L
L
K
J
Fewer mechanical components = less backlash &
compliance = better system accuracy
Inertia Mismatch
L
L
K
J
Inertia ratio irrelevant when backlash and
compliance are removed
Tuning
L
L
K
J
Reducing / eliminating backlash and compliance
greatly simplifies tuning
Power Requirement
L
L
K
J
Lower friction / heat / noise = higher system
efficiency = reduced power requirements
Reliability
L
K
K
J
Eliminating mechanical transmission components =
reduced maintenance and fewer spare parts
Copyright © 2008 Rockwell Automation, Inc. All rights reserved.
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Your application can benefit if . . . .
• Performance Requirements Exceed Capabilities of Traditional Solution
– “Just can’t get there from here” – Direct Drive motors can help improve performance
• Chronic Mechanical Maintenance Issues - Direct Drive motors can help reduce
downtime
• Gearbox Used for Inertia Matching
– Results in oversized motor (excessive torque relative to application requirement)
– Higher speed motor = higher current = larger drive = higher system cost
• Tight Space Constraints
– Eliminating parts reduces space requirements
Copyright © 2008 Rockwell Automation, Inc. All rights reserved.
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RDD-Series (Bulletin RDB) – Product Overview
Connectors
Environmental Protection
• DIN-Style
• Use 2090 (MP-Series) Cables
• IP65 (Blind Bore)
• IP64 (Through Bore)
Feedback
Bearingless Rotor
• Heidenhain High Resolution
Absolute Encoders
• 2048 Sin / Cos Periods per
Revolution
• Optimized for Applications where
Load Already Supported by Bearings
• Greatly Simplifies Motor Installation
Female Shaft Interface
Windings
• Large Diameter for Rigid
Connection of Motor to Load
• Eliminates Backlash /
Compliance
• Optimized for use with latest Kinetix
6000 family and Kinetix 7000 Servo
Drives
• Low, Medium and High Speed Options
Copyright © 2008 Rockwell Automation, Inc. All rights reserved.
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RDD-Series (Bulletin RDB) – Power Range
RDB - Bearingless RDH - Housed
Continuous Torque (Nm)
5 Nm
50 Nm
500 Nm
5,000 Nm
5 Nm – 400 Nm
Low Speed Windings
5 Nm – 500 Nm
Low Speed Windings
Medium Speed Windings
High Speed Windings
Industries
Print
Converting
Automotive (tire building)
Semi-con
Robotics & Indexing
Copyright © 2008 Rockwell Automation, Inc. All rights reserved.
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Kinetix Family of Rotary Servo Motors
Continuous Torque
1 Nm
Voltage
400 / 460 Volts
0.1 Nm
10 Nm
100 Nm
1326AB
HPKSeries
MP-Series
Low Inertia
230 Volts
1000 Nm
TL-Series
Low Inertia
F-Series
Copyright © 2008 Rockwell Automation, Inc. All rights reserved.
Medium Inertia
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Growing Kinetix Family of Rotary Servo
Motors
Continuous Torque
1 Nm
10 Nm
100 Nm
1000 Nm
Voltage
400 / 460 Volts
0.1 Nm
230 Volts
MP-Series
Low Inertia
RDH *
RDB
Frameless *
* Future Product
Low Inertia
TL-Series
MP-Series
Medium Inertia
Copyright © 2008 Rockwell Automation, Inc. All rights reserved.
Medium Inertia
Direct Drive
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RDD-Series (Bulletin RDB) - Summary
• Direct Drive Rotary Servo Motors
– Increased performance, efficiency,
reliability
– Decreased Total Cost of Ownership
• Applications
–
–
–
–
–
Performance optimization
High inertial loads
High Power + High Performance
Tight space constraints
Eliminate chronic maintenance issues
• Configurations
– Bearingless (RDB)
– Housed (RDH)
– Frameless (Future)
Copyright © 2008 Rockwell Automation, Inc. All rights reserved.
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RDD-Series (Bulletin RDB) - Contact
Information
• Rockwell Automation Sales Contact
– David Hansen
– (952) 942-3757
(Distributor logo here)
• Local Distributor Contact
– Brandon Bernier
– (402) 502-8153
How Can Your Machine Benefit from Direct Drive?
Copyright © 2008 Rockwell Automation, Inc. All rights reserved.
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Copyright © 2008 Rockwell Automation, Inc. All rights reserved.