Rockwell Automation RDD-B2153 User Manual

Installation Instructions
RDD-Series Rotary Direct Drive Bearingless Motors

Catalog Numbers RDB-B2151, RDB-B2152, RDB-B2153

Important User Information 2 Catalog Number Explanation 3 Before You Begin 4 Install the Motor 8 Remove the Motor 16 Connector Data 18 Product Dimensions 19 Connector Information 21 Specifications 21 Additional Resources 22

About the Rotary Direct Drive Bearingless Motors

RDD-Series direct drive motors feature single-turn or multi-turn high resolution encoders. These bearingless housed motors provide a compact design for direct drive applications.
2 RDD-Series Rotary Direct Drive Bearingless Motor Installation Instructions
WARNING
IMPORTANT
ATTENTION
SHOCK HAZARD
BURN HAZARD

Important User Information

Solid state equipment has operational characteristics differing from those of electromechanical equipment. Safety Guidelines for the Application, Installation and Maintenance of Solid State Controls, publication
SGI-1.1
, is available from your local Rockwell Automation sales office or online at
http://literature.rockwellautomation.com
equipment and hard-wired electromechanical devices. Because of this difference, and also because of the wide variety of uses for solid state equipment, all persons responsible for applying this equipment must satisfy themselves that each intended application of this equipment is acceptable.
In no event will Rockwell Automation, Inc. be responsible or liable for indirect or consequential damages resulting from the use or application of this equipment.
The examples and diagrams in this manual are included solely for illustrative purposes. Because of the many variables and requirements associated with any particular installation, Rockwell Automation, Inc. cannot assume responsibility or liability for actual use based on the examples and diagrams.
No patent liability is assumed by Rockwell Automation, Inc. with respect to use of information, circuits, equipment, or software described in this manual.
Reproduction of the contents of this manual, in whole or in part, without written permission of Rockwell Automation, Inc., is prohibited.
Throughout this manual, when necessary, we use notes to make you aware of safety considerations.
Identifies information about practices or circumstances that can cause an explosion in a hazardous environment, which may lead to personal injury or death, property damage, or economic loss.
, describes some important differences between solid state
Publication RDB-IN001A-EN-P — October 2009
Identifies information that is critical for successful application and understanding of the product.
Identifies information about practices or circumstances that can lead to personal injury or death, property damage, or economic loss. Attentions help you identify a hazard, avoid a hazard and recognize the consequences.
Labels may be on or inside the equipment, for example, a drive or motor, to alert people that dangerous voltage may be present.
Labels may be on or inside the equipment, for example, a drive or motor, to alert people that surfaces may reach dangerous temperatures.
RDD-Series Rotary Direct Drive Bearingless Motor Installation Instructions 3
RD B -B 215 3 C -7B 7 2 AA

Catalog Number Explanation

FACTORY DESIGNATED OPTIONS AA = Standard BRAKE 2 = No Brake
CONNECTORS 7 = Circular, Right Angle, 180° Rotatable
ENCLOSURE/SHAFT B = IP65 Housing/Blind Bore FEEDBACK 3 = Single-turn High Resolution Heidenhain 7 = Multi-turn High Resolution Heidenhain BASE SPEED 9 = 750 rpm @ 440V C = 1000 rpm @ 440V MAGNET STACKS 1 = One Stack 2 = Two Stacks 3 = Three Stacks FRAME SIZE - Bolt Circle Diameter (BCD) 215 = 215 mm VOLTAGE RATING B = 400V Class HOUSING TYPE B = Bearingless Housing BULLETIN NUMBER RD = Rotary Direct Drive Servo Motor
Publication RDB-IN001A-EN-P — October 2009
4 RDD-Series Rotary Direct Drive Bearingless Motor Installation Instructions
ATTENTION

Before You Begin

Remove all packing material, wedges, and braces from within and around the item. After unpacking, verify the nameplate catalog number against the purchase order.
1. Remove the motor carefully from its shipping container.
2. Visually inspect the motor frame, mounting pilot, and connectors for
damage.
3. Notify the carrier of any shipping damage immediately.
4. Retain the cardboard cover and protective paper sleeving from the mounting
end of the motor.
Magnetized material within the motor is exposed whenever the protective cover is removed and before the motor is mounted.
Accidental entry of foreign material can harm motor performance. Always cover the mounting end of motor immediately after removing the motor or its
protective cover. This will greatly reduce the possibility of magnetic or non-magnetic particles accidentally entering the motor.

Required Tools

These tools are needed to install or remove the product.
Publication RDB-IN001A-EN-P — October 2009
Tools Required Value
Hex bit, 150 mm (6 Hex bit, 25 mm (1 Torque wrench Capable of applying at least 45 N•m (35 lb•ft) Screwdriver Phillips #4 Pry bar Flat blade Micrometer N/A Straight edge Caliper Runout indicator Cleaning cloth Flashlight
in.) minimum length 6 mm
in.) minimum length 8 mm
RDD-Series Rotary Direct Drive Bearingless Motor Installation Instructions 5

Prolonging Motor Life

Thoughtful design and proper maintenance can increase the life of this motor. Follow these guidelines to maximize the life of the motor:
• Always provide a drip loop in each cable to carry liquids away from the connection to the motor.
• If design requirements permit, provide shields that protect the motor housing, shaft bore, seals, and their junctions from contamination by foreign matter or fluids.
• Inspect the motor for damage or wear on a regular basis. If damage or excessive wear is observed, replace the item.

Preventing Electrical Noise

Electromagnetic interference (EMI), commonly called electrical noise, can reduce motor performance. Effective techniques to counter EMI include filtering the AC power, using shielded cables, separating signal cables from power wiring, and practicing good grounding techniques.
Follow these guidelines to avoid the effects of EMI:
• Isolate the power transformers or install line filters on all AC input power lines.
• Physically separate signal cables from motor cabling and power wiring. Do not route signal cables with motor and power wires, or over the vent openings of servo drives.
• Ground all equipment by using a single-point parallel ground system that employs ground bus bars or large straps. If necessary, use additional electrical noise reduction techniques to reduce EMI in noisy environments.
Refer to the System Design for Control of Electrical Noise Reference Manual, publication GMC-RM001
, for additional information on reducing the effects of EMI.
Publication RDB-IN001A-EN-P — October 2009
6 RDD-Series Rotary Direct Drive Bearingless Motor Installation Instructions
ATTENTION

Build and Route Cables

Knowledgeable cable routing and careful cable construction improves system performance.
Follow these guidelines to build and install cables:
• Keep wire lengths as short as physically possible.
• Route noise sensitive wiring (encoder, serial, I/O) away from input power and motor power wiring.
• Separate cables by 0.3 m (1 ft) minimum for every 9 m (30 ft) of parallel run.
• Ground both ends of the encoder cable shield and twist the signal wire pairs to prevent electromagnetic interference (EMI) from other equipment.
Do not tightly gather or coil the excess length of a power cable. Heat is generated within a cable whenever power is applied. Always position a power cable so it may freely dissipate any heat.
A power cable should not be coiled, except for temporary use when building or testing a machine. If you temporarily coil a power cable, you must also derate the cable to meet local code or follow an authoritative directive, such as Engineering Section 310.15(C) of the NEC Handbook.
Failure to observe these safety procedures could result in personal injury or equipment damage.
Publication RDB-IN001A-EN-P — October 2009
RDD-Series Rotary Direct Drive Bearingless Motor Installation Instructions 7
SHOCK HAZARD
Shielded Signal Wires (one pair shown) within Power Cable
Overall Power Cable Shield
Signal Wire Shield Contacts Overall Power Cable Shield
Factory Supplied
Field Modified
All power and signal wire shields must connect to machine ground.

Ground the Shielded Signal Wires within a Power Cable

Always ground the shield on any signal wires inside a power cable. Connecting this shield to chassis ground reduces the potential for voltage inductance and EMI.
If any shield on a power cable is not grounded, high voltage can be present on that shield.
Make sure there is a connection to ground for all shield wires inside a power cable, and for the overall power cable shield.
Failure to observe safety precautions could result in personal injury or damage to equipment.
Follow these steps to ground the shield wire on a 2090-CPBM7DF-xxAFxx or 2090-XXNPMF-xxSxx power cable.
1. Loop the signal wire pair to the overall cable shield as shown in the diagram.
• Cable 2090-CPBM7DF-xxAFxx (shown) contains one signal wire pair.
• Cable 2090-XXNPMF-xxSxx contains two signal wire pairs.
2. Clamp all signal wire shields and the overall power-cable shield in the power cable (chassis) ground clamp on the drive.
Grounding of Signal Wire Shields in a Power Cable
Publication RDB-IN001A-EN-P — October 2009
8 RDD-Series Rotary Direct Drive Bearingless Motor Installation Instructions
ATTENTION
ATTENTION
ATTENTION

Install the Motor

All motors include a mounting pilot for aligning the motor on the machine. Preferred fasteners are hardened steel. The installation must comply with all local regulations and use equipment and installation practices that promote safety and electromagnetic compatibility.
Unmounted motors, disconnected mechanical couplings, loose shaft keys, and disconnected cables are dangerous if power is applied.
Disassembled equipment should be appropriately identified (tagged-out) and access to electrical power restricted (locked-out).
Before applying power to the motor, remove the shaft key and other mechanical couplings that could be thrown by the motor.
Failure to observe these safety precautions could result in personal injury.
Servo drive power must be turned off before connecting or disconnecting the cables to the motor, and if a cable is left disconnected at the motor end.
Arcing or unexpected motion could occur if the feedback, power, or brake cables are connected or disconnected while power is applied to the servo drive.
Failure to observe these safety procedures could result in personal injury or damage to the motor and equipment.
Publication RDB-IN001A-EN-P — October 2009
Do not attempt to open or modify this motor. Only an authorized Allen-Bradley repair center shall service this item. Refer to Rockwell
Automation Support for assistance to locate the nearest repair center. Failure to observe safety precautions could result in personal injury or damage to
equipment.
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