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ETS-Lindgren
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2181
User Manual
44 pgs11.38 Mb0

ETS-Lindgren 2181 User Manual

Model 2181
Electric-Powered Turntable
2-Meter, 3-Meter,
4-Meter, 5-Meter
User Manual
Model 2181 2.0-meter turntable
©Copyright 2007–2008 by ETS-Lindgren L.P. All Rights Reserved. No part of this document may be copied by any means without written permission from ETS-Lindgren L.P.
Trademarks used in this document: The ETS-Lindgren logo is a trademark of ETS-Lindgren L.P.
Revision Record
MANUAL,2181 Turntable Series | Part #399289, Rev. D
Revision Description Date
A Initial Release February, 2007 B Added 2-meter turntable; updated 3-meter
turntable specifications
C Updated 3-meter turntable drawing; added
4-meter turntable drawings/updated specifications
D Added 5-meter turntable information and
drawings; rebranding
September, 2007
November, 2007
June, 2008
ii |
Table of Contents
Notes, Cautions, and Warnings.........................................................................v
1.0 Introduction...................................................................................................7
Model 2181 Standard Configuration................................................................................... 7
Turntable Assembly...............................................................................................7
Shield Room Feed-through ................................................................................... 8
Model 2090 Series Multi-Device Positioning Controller..................................................... 8
Model 2181 Optional Items................................................................................................. 8
Infrared Remote Controller.................................................................................... 8
Slip Ring ................................................................................................................ 9
EUT Power Outlets................................................................................................9
Mounted Line Impedance Stabilization Network................................................... 9
Additional Fiber Optic Cables..............................................................................10
ETS-Lindgren Product Information Bulletin...................................................................... 10
2.0 Maintenance................................................................................................11
Recommended Maintenance Schedule ........................................................................... 11
6-Month Service .................................................................................................. 11
12-Month Service ................................................................................................ 12
Replacement and Optional Parts...................................................................................... 12
Service Procedures.......................................................................................................... 12
3.0 Specifications..............................................................................................13
Electrical Specifications.................................................................................................... 13
Mechanical Specifications................................................................................................ 13
4.0 Turntable Installation Considerations.......................................................15
Before You Begin—Precautions....................................................................................... 15
Power and Signal Lines....................................................................................................16
Conduit ................................................................................................................ 16
Electrical Considerations..................................................................................... 16
Access................................................................................................................. 16
Outdoor Installations......................................................................................................... 16
Drainage.............................................................................................................. 16
Cold Climate Conditioning................................................................................... 16
| iii
5.0 Electrical Installation..................................................................................17
Model 2181 Electrical Installation.....................................................................................17
Connecting the Model 2090 Controller.............................................................................18
6.0 Assembly and Installation..........................................................................19
Assembly Instructions....................................................................................................... 19
Floor Flange Installation in a Paneled Floor..................................................................... 20
Floor Flange Installation in a Concrete Pit ....................................................................... 23
IR Repeater Installation.................................................................................................... 23
Installation Assembly Components..................................................................... 23
Required Tools for Installation............................................................................. 23
Installation Steps................................................................................................. 24
7.0 Operation.....................................................................................................25
Editing Positioning Controller Configuration Parameters................................................. 25
Setting Travel Limits......................................................................................................... 26
Turntable Encoder Calibration.......................................................................................... 28
Turntable Calibration Example............................................................................ 29
Changing Rotation Speed ................................................................................................ 29
Variable Speed Settings................................................................................................... 29
Speed Selection ............................................................................................................... 30
GPIB Commands.............................................................................................................. 30
Appendix A: Warranty......................................................................................33
Appendix B: EC Declaration of Conformity....................................................35
iv |
Notes, Cautions, and Warnings
Note: Denotes helpful information intended to provide tips for
See the ETS-Lindgren Product Information Bulletin for safety, regulatory, and other product marking information.
better use of the product.
Caution: Denotes a hazard. Failure to follow instructions could result in minor personal injury and/or property damage. Included text gives proper procedures.
Warning: Denotes a hazard. Failure to follow instructions could result in SEVERE personal injury and/or property damage. Included text gives proper procedures.
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vi |
1.0 Introduction
The ETS-Lindgren Model 2181 Turntable is an electric-powered turntable platform system designed for use with the Model 2090 Series Multi-Device Positioning Controller for EMI compliance testing. The Model 2181 is designed for indoor or outdoor use, and is available in 2-meter, 3-meter, 4-meter, and 5-meter sizes.
The top of the turntable is conductive with a continuous ground brush to electrically couple it to the ground plane. The ground brushes are attached directly to the chamber floor by the floor flange, and are in continuous contact with the turntable top. The brushes point downward from the floor flange.
All models utilize a pinion and gear drive with a gear reducer and electric motor located beneath the platform. The bearing on which the turntable rotates has the drive teeth cut directly on the outside and will easily support most Equipment Under Test (EUT). Support for the turntable includes casters that aid in the support of cantilevered loads on the outside of the turntable.
The turntable top is sectional to provide easy access if service is required. On standard models, a 15-cm hole is provided in the center of the turntable to accommodate customer supplied cabling to and from the EUT.
To prevent over-travel of the turntable in either direction of movement, hard limits are provided in the form of pins that actuate switches located below the tabletop. These pins allow limits to be set and allow as much as two full rotations. Rotation speed can be varied from the front panel of the Model 2090 controller or through the IEEE-488 interface bus.
Model 2181 Standard Configuration
TURNTABLE ASSEMBLY
Featuring continuous or non-continuous operation, the turntable assembly includes:
• 3-phase electric motor unit
• Heavy-duty variable speed drive system
• Conductive sectional top for easy service access
• Convenient rotational limit adjust switches
Introduction | 7
• Limit override feature
• Ground ring assembly with ground brush and floor flange
• 10-meter fiber optic control cables
Additionally, the turntable is infrared compatible, and can be used with an optional ETS-Lindgren Infrared Remote Controller (IR remote). For more information on using an IR remote, see Infrared Remote Controller on page 8.
SHIELD ROOM FEED-THROUGH
The feed-through routes the fiber optic control cable from the control room to the shield room, maintaining satisfactory shielding attenuation. The unit is made of brass for conductivity and provides attenuation of greater than 100 dB at 10 GHz. A single 22.25-mm (.875-in) hole is required for mounting.
Model 2090 Series Multi-Device Positioning Controller
The Model 2090 controller is a separate component required for Model 218 1
Model 2181 Optional Items
operation.
The Model 2090 Series Multi-Device Positioning Controller provides control for two separate devices, such as ETS-Lindgren towers and turntables, plus the control of four auxiliary devices. The Model 2090 controller includes a GPIB bus and is compatible with most popular software, and electronically controls speed adjustment through the GPIB interface or front panel.
INFRARED REMOTE CONTROLLER
The Model 2181 is infrared compatible, and can be used with a universal remote control programmed to a specific protocol, such as the ETS-Lindgren Infrared Remote Controller (IR remote).
8 | Introduction
The IR remote communicates with an infrared receiver in the Model 2181 motor base through an IR repeater installed in the floor near the turntable. See IR Repeater Installation on page 23 for instructions on installing an IR repeater.
SLIP RING
Allows continuous rotation of the turntable through the latest technology in mercury slip rings, and either Schuko or NEMA connectors can be ordered with the slip ring. The current rating for the standard electrical assembly is 20 amperes. Contact ETS-Lindgren for custom requirements on slip rings.
EUT POWER OUTLETS
Receptacles are usually mounted on the base of the turntable at the center axis point. These receptacles can be custom mounted, flush with the tabletop on some turntables. Contact ETS-Lindgren for information.
MOUNTED LINE IMPEDANCE STABILIZATION NETWORK
A Line Impedance Stabilization Network (LISN) can be mounted to the underside of some turntables. This option is only practical on larger turntables with sufficient clearance.
Introduction | 9
ADDITIONAL FIBER OPTIC CABLES
Additional lengths of fiber optic cable may be ordered.
ETS-Lindgren Product Information Bulletin
See the ETS-Lindgren Product Information Bulletin included with your shipment for the following:
• Warranty information
• Safety, regulatory, and other product marking information
• Steps to receive your shipment
• Steps to return a component for service
• ETS Lindgren calibration service
• ETS Lindgren contact information
10 | Introduction
2.0 Maintenance
WARRANT Y
Before performing any maintenance, follow the safety information in the ETS-Lindgren Product Information Bulletin included with your shipment.
Regularly inspect all equipment and conduct scheduled maintenance in accordance with the factory recommendations provided.
BEFORE SERVICING: CONTACT ETS-LINDGREN (+1.512.531.6400)—Servicing or modifying the unit without
ETS-Lindgren authorization may void your warranty. If an attempt to service the unit must be made, disconnect all electrical power prior to beginning. Voltages exist at many points within the instrument that could, if contacted, cause personal injury. Only trained service personnel should perform adjustments and/or service procedures upon this instrument. Capacitors inside this
instrument may still be charged even when the instrument is disconnected from the power source.
Recommended Maintenance Schedule
Regular maintenance will prolong the effective operation and reliability of your turntable. Follow the recommended schedule for 6-month and 12-month service.
Do not perform maintenance while the turntable is operating.
6-MONTH SERVICE
Check the gearbox for fluid leakage. A collection of slight film is normal, but puddles of fluid are not normal. The gearbox is lubricated and sealed at the factory. Under normal conditions, the gearbox should not require servicing during its life.
Maintenance | 11
12-MONTH SERVICE
• Lubricate the main bearing race with a grease gun containing good quality bearing grease. The grease fittings are located inside the race, 90 degrees apart, beneath the top. Three discharges from the grease gun in each fitting are adequate.
• Lubricate the gear teeth with good quality grease.
Replacement and Optional Parts
Following are the part numbers for ordering replacement or optional parts for the Model 2181 Turntable. For additional information on available replacement and optional parts, see Model 2181 Standard Configuration on page 7.
Part Description Part Number
Turntable assembly For a list of all turntable parts, see the
drawings located in the back pocket of this manual.
Model 2090 Series Multi-Device Positioning Controller
IR Remote Controller 707030 NEMA connectors for slip ring 103441 Schuko connectors for slip ring 103351
Service Procedures
For the steps to return a system or system component to ETS-Lindgren for service, see the Product Information Bulletin included with your shipment.
2090
12 | Maintenance
3.0 Specifications
Electrical Specifications
Drive Speeds: Nominal AC Voltage: Input Frequency: Current Rating: Current Draw: RPM: Phase:
Mechanical Specifications
Diameter:
Nominal Height
Minimum:
Maximum:
2.0 m
6.56 ft
44.78 cm
17.63 in
46.99 cm
18.50 in
Variable 200–230 VAC 50/60 Hz 15 amp service < 10 amps
0.5 – 2.0 Single (1)
3.0 m
9.84 ft
44.78 cm
17.63 in
46.99 cm
18.50 in
4.0 m
13.12 ft
44.78 cm
17.63 in
46.99 cm
18.50 in
5.0 m
16.40 ft
44.78 cm
17.63 in
46.99 cm
18.50 in
Required Pit Diameter:
Top Construction:
Distributed Load Rating:
202.56 cm ± 0.64 cm
79.75 in ± 0.25 in Sectional
aluminum 1500 kg
3300 lb
302.6 cm ± 0.64 cm
119.12 in ± 0.25 in Sectional
aluminum 4000 kg
8800 lb
402.6 cm ± 0.64 cm
158.5 in ± 0.25 in Sectional
aluminum 6000 kg
13200 lb
504.83 cm ± 0.64 cm
198.75 in ± 0.25 in Sectional
aluminum 6800 kg
15000 lb
Distributed Load Rating applies when:
• Load is evenly distributed on top;
• No point loads under 0.19 sq m (2.0 sq ft) should exceed 100 kg
(220 lb);
• And not over 28.5 kg (62.8 lb) should be applied to a 45-degree
segment at the table outer edge.
Specifications | 13
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14 | Specifications
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