How it Works
ETS-Lindgren
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2081-3.0
User Manual
47 pgs4.77 Mb0

ETS-Lindgren 2081-2.0, 2081-3.0, 2081-4.0, 2081-5.0, 2081-2.5 User Manual

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Model 2081
Turntable Series
2081-2.0, 2081-2.5, 2081-3.0,
2081-4.0, 2081-5.0, 2081-6.0
MANUAL
© ETS-LINDGREN L.P. - JANUARY 2003 REV D – PN 399212
MODEL 2081 TURNTABLE SERIES
ETS-Lindgren L.P. reserves the right to make changes to any products herein to improve functioning, design, or for any other reason. Nothing contained herein shall constitute ETS-Lindgren L.P. assuming any liability whatsoever arising out of the application or use of any product or circuit described herein. ETS­Lindgren L.P. does not convey any license under its patent rights or the rights of others.
© Copyright 2003 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.
E-MAIL & INTERNET
Support@ets-lindgren.com
http://www.ets-lindgren.com
USA
1301 Arrow Point Dr., Cedar Park, TX 78613 P.O. Box 80589, Austin, TX 78708-0589 Phone 512.531.6400 Fax 512.531.6500
FINLAND
Euroshield OY Mekaanikontie 1 27510, Eura, Finland Phone + 358.2.838.3300 Fax + 358.2.865.1233
JAPAN
4-2-6, Kohinata Bunkyo-ku Tokyo 112-0006 JAPAN Phone + 81 3 3813 7100 Fax + 81 3 3813 8068
CHINA
1917-1918 Xue Zhixuan Building No 16 Xue Qing Road Haidian District Beijing Postcode: 100083 CHINA Phone + 86 010 82755304 Fax + 86 010 82755307
© ETS-LINDGREN L.P. – JANUARY 2003 REV D – PN 399212
MODEL 2081 TURNTABLE SERIES
Table of Contents
INTRODUCTION ........................................................................................................................................ 1
STANDARD CONFIGURATION .............................................................................................................. 2
OPTIONS ...................................................................................................................................................... 3
PRECAUTIONS ........................................................................................................................................... 4
TURNTABLE INSTALLATION CONSIDERATIONS........................................................................... 6
POWER AND SIGNAL LINES ......................................................................................................................... 6
OUTDOOR INSTALLATIONS .......................................................................................................................... 6
INSTALLATION ......................................................................................................................................... 7
GROUND RING INSTALLATION .................................................................................................................... 9
ELECTRICAL INSTALLATION ............................................................................................................ 10
CONNECTING THE MODEL 2090 POSITIONING CONTROLLER..................................................................... 11
OPERATION .............................................................................................................................................. 12
RECOMMENDED PARAMETERS FOR THE MODEL 2090 POSITIONING CONTROLLER ................................... 13
EDITING MODEL 2090 POSITIONING CONTROLLER CONFIGURATION PARAMETERS .................................. 14
TURNTABLE ENCODER CALIBRATION ....................................................................................................... 14
TT CALIBRATION EXAMPLE ...................................................................................................................... 15
SETTING CURRENT POSITION ON 2090 ...................................................................................................... 17
CAUTION: ON RESETTING CURRENT POSITION ON 2090 ........................................................................... 17
CHANGING ROTATION SPEED .................................................................................................................... 18
SETTING TRAVEL LIMITS .......................................................................................................................... 19
ALTIVAR MOTOR BASE CONFIGURATION ................................................................................................. 20
HAND CONTROL UNIT .......................................................................................................................... 21
RECOMMENDED MAINTENANCE ...................................................................................................... 22
EVERY SIX MONTHS.................................................................................................................................. 22
EVERY TWELVE MONTHS .......................................................................................................................... 23
SPECIFICATIONS .................................................................................................................................... 24
ELECTRICAL .............................................................................................................................................. 24
PHYSICAL .................................................................................................................................................. 24
WARRANTY STATEMENT .................................................................................................................... 25
ILLUSTRATIONS ..................................................................................................................................... 26
© ETS-LINDGREN L.P. – JANUARY 2003 REV D – PN 399212
MODEL 2081 TURNTABLE SERIES
NOTICE: This produc t and related documentation must be r eviewed fo r familiariz ation with safety markings and instructions before operation.
SAFETY SYMBOL DEFINITIONS
!
OR
CAUTION
WARNING
REFER TO MANUAL
instruction manual for additional information.
HIGH VOLTAGE
could result in severe personal injury or death.
PROTECTIVE EARTH GROU ND (SAF ETY G ROUND)
Indicates protective earth terminal. You should provide uninterruptible safety ea rth ground from the main power source to the pr o duct input wiring terminals, power cord, or supplied power cord set.
CAUTION
minor personal i n ju r y and/or propert y damage. Included text gives proper procedures.
WARNING
SEVERE pe r sonal inju ry and/or proper ty damage. Included text gives pr o per procedures.
GENERAL SAFETY CONSIDERATIONS
BEFORE POWER IS APPLIED TO THIS INSTRUMENT, GROUND IT PROPERLY
cable to a power source provided with protective earth contact. Any interruption of the protective (grounding) conductor , inside or outside the ins trument, or dis c onnection of the protective ea rth termi nal could result in personal injury.
When product is marked with this symbol refer to
Indicates presence of hazardous voltage. Unsafe practice
Denotes a hazard. Failure to follow instructions could result in
Denotes a hazard. Failure to follow instructions could result in
through the protective conductor of the AC power
WARRANTY
© ETS-LINDGREN L.P. – JANUARY 2003 REV D – PN 399212
BEFORE SERVICING: CONTACT ETS-LINDGREN -
(or modifying) the unit by yourself may void your warranty. I f you attempt to ser vice the unit by yo urself, disconnect all electrical powe r befor e starting. There ar e v oltages at many points in the instrument which could, if contacted, cause personal injury. Only trained service personnel should perform adjust m ents and/or s ervice proce dures upon thi s inst rument.
Capacitors inside this instrument may still be CHARGE D even when instrument is disconn ected from its power source.
ONLY QUALIFIED PERSONNEL
STAY CLEAR
of moving components during operat i o n of equipment.
shou ld ope rate (or s ervice) this equi pm e nt.
servicing
MODEL 2081 TURNTABLE SERIES Introduction
INTRODUCTION
The ETS-Lindgren Model 2081 is an electric powered turntable platform system designed to be used with the Model 2090 Positioning Controller for EMI compliance testing. Two meter and larger tables utilize a pinion and gear drive with a gear reducer and electric motor. The conductive metal top is outfitted with a continuous ground brush to electrically couple the turntable to the ground plane. The drive motor and gearing are located beneath the platform. The sectional turntable top provides easy access in the event that service is required. A shielded enclosure contains the electronics for the system. Signal I/O from the turntable to the Model 2090 controller is via fiber optic cable.
The bearing on which the turntable rotates has the drive teeth cut directly on the outside and will easily support most heavily weighed equipment under test (EUT). Casters underneath the table surface aid in the support of a cantilevered load. Leveling screws are located at each caster, between the casters and in the center section of the assembly for ease in matching height on an uneven ground plane.
To prevent over-travel of the turntable in either direction of movement, mechanical limits can be set using dial knobs on the outside of the encoder enclosure located in the center of the main pivot bearing. The knobs can be accessed by removing the center section of the turntable. Soft limits can be set within the mechanical limits, using the Model 2090 Positioning Controller.
Ground brushes attached directly to the top of the table are in continual contact with the floor flange supplied with the ground ring option. The brushes point downward from the top of the table.
To extend the life of the ground brush, a one-piece stainless steel liner is attached to the inside edge of the stationary floor flange.
© ETS-LINDGREN L.P. – JANUARY 2003 1 REV D – PN 399212
Standard Configuration MODEL 2081 TURNTABLE SERIES
STANDARD CONFIGURATION
• Three-phase electric motor unit (standard)
• Heavy duty two-speed drive system (standard)
• Conductive sectional top
• Convenient rotational limit adjust switches
• Limit override feature
• Ten meter fiber-optic control cables (standard)
• Overall height 400 mm (15.75 in)
• Sectional top for easy service access
• Full supporting leveling screws
2 © ETS-LINDGREN L.P. – JANUARY 2003
REV D – PN 399212
MODEL 2081 TURNTABLE SERIES Options
OPTIONS
Model 2090 Positioning Controller: This controller provides control for two separate devices (towers and turntables) in any combination, plus the control of four auxiliary devices via a fiber optic interface. The unit includes a GPIB connection and is compatible with most popular EMI measurement software.
Hand Control Unit: This sturdy, hand-held controller will allow the user to manually operate the table remotely and independently from the Model 2090 Positioning Controller. This controller attaches conveniently to the electrical enclosure located on the base of the turntable. Functions include: Clockwise (CW), Counterclockwise (CCW) and Hand/Main Control selection.
Slip Ring: This option allows continuous rotation of the turntable through the use of the latest technology in mercury slip-rings. The slip ring option is typically supplied with Schuko or NEMA connectors. Specify part #103441 for NEMA connectors, and part #103351 for Schuko connectors. The amperage rating for the standard electrical assembly is 20 amps. Consult the factory for all custom requirements on slip-rings.
Shield Room Feed-through: This option allows the customer to take the fiber optic control cable from the control room to the shield room while maintaining shielding attenuation. The unit is made of brass for conductivity and provides attenuation of greater that 100 dB at 10 GHz. A single 22.25 mm (.875 inch) hole is required to mount this option.
Additional Fiber Optic Cable: Various lengths of fiber optic cable are available by customer order. The standard length provided is 10 m (32.8 ft).
Variable Speed Drive: An optional variable speed drive package is available with the Model 2081 Turntable. Speed adjustment is electronically controlled by the Model 2090 via the front panel or through the GPIB interface.
© ETS-LINDGREN L.P. – JANUARY 2003 3 REV D – PN 399212
Precautions MODEL 2081 TURNTABLE SERIES
EUT Power Outlets: Receptacles are usually mounted on the base of the turntable at its center axis point. These receptacles can be custom mounted, flush with the tabletop on some turntables. Consult the factory for more details.
Mounted LISNs: LISNs can be mounted to the underside of some turntables. This option is only practical on larger turntables with sufficient clearance.
PRECAUTIONS
Read this manual completely before starting installation. This equipment should be installed and operated only by qualified personnel.
Ensure correct voltage setting is selected on the Motor Base unit (when applicable).
The fiber optic cable must be looped through the “P” clip installed on the front panel of the motor base. Failure to do so will increase the chance of the cable being accidentally pulled, thus breaking the fiber optic connectors.
Do not attempt to service unless qualified to do so. As with any electrical equipment, ensure unit electrical power has been disconnected and secured when performing scheduled maintenance or adjustments.
WARRANTY
Do not make any modifications to this unit without consulting the factory directly.
Stay clear of all moving components on this equipment.
Do not, at any time, place hands or feet in the vicinity of the drive
pinion on the turntable.
Do not operate the turntable while someone is physically on the turntable top.
4 © ETS-LINDGREN L.P. – JANUARY 2003
REV D – PN 399212
MODEL 2081 TURNTABLE SERIES Precautions
Regularly inspect the equipment for loose fasteners and wear. Conduct scheduled maintenance in accordance with the factory recommendations provided.
Only use replacement parts and fasteners ordered directly from the factory or specified by ETS-Lindgren.
The access plate(s) above the pinion gear should remain firmly attached with the screws provided at all times. When the plate is removed for servicing, the electrical breaker located on the electrical control enclosure should be in the OFF position.
© ETS-LINDGREN L.P. – JANUARY 2003 5 REV D – PN 399212
Turntable Installation Considerations MODEL 2081 TURNTABLE SERIES
TURNTABLE INSTALLATION CONSIDERATIONS
Pre-planning is essential for a successful installation. Be sure to discuss your requirements with your sales representative and request dimensional drawings prior to construction of your site.
POWER AND SIGNAL LINES
Conduit
Power and signal line paths should be planned in advance. Conduit should be in place before pouring concrete or installing the ground plane. Be sure to consider the size of the cable bundle when selecting conduit diameter.
Electrical Considerations
A qualified and licensed electrical contractor should be used to install power lines, and the installation should comply with all applicable regulatory agencies. A dedicated circuit should be used, with the shortest distance possible between the power source and the turntable.
Access
An access area underneath the turntable is advisable for large diameter installations. A service switch should be installed to deactivate the turntable during service.
OUTDOOR INSTALLATIONS
Drainage
A centerline drain of at least 15cm (6in) must be installed to provide proper drainage during rain storms, etc.
Cold Climate Conditioning
Oil used in the gear assemblies will congeal at 2 Turntables operated in these temperatures should include a heat source and/or dehumidifier.
6 © ETS-LINDGREN L.P. – JANUARY 2003
REV D – PN 399212
o
C (28o F).
MODEL 2081 TURNTABLE SERIES Installation
INSTALLATION
The installation of turntables 2 meters and larger will be performed by a factory installation specialist or by individuals who have been authorized by ETS-Lindgren to do such work. Proper installation of the turntable directly affects performance. The following installation information is provided to familiarize the user of the turntable with the installation process.
1. Uncrate all parts. NOTE: Do not discard any packing material
until unit is fully assembled. Check all parts for any shipping damage. Ensure a clear area is available to assemble the turntable unit safely.
2. After removing three ½-13 flat head screws from the center of
the turntable, install three eye-bolts (provided) for lifting the turntable center drive section.
3. Attach lifting chains or slings though the eye-bolts.
CAUTION Lifting and placement of turntable center drive unit into a pit should only be performed by qualified personnel.
4. Safely lift the turntable into the pit using a forklift or other
appropriate lifting device, place the turntable bottom or bearing support section into position.
5. Remove the drive pinion so the turntable may be rotated
manually.
6. If the turntable is to be installed into a pit or floor cut-out,
center and level the assembly. The drawings at the back of this manual illustrate the placement of floor plates and leveling screws that will take place in order to anchor and level the turntable. Your installation specialist may have to make slight adjustments to accommodate the conditions at your site. After installing the floor plates and leveling screws the installer will level the entire turntable by adjusting all the leveling screws.
CAUTION Ensure power is OFF and secured before proceeding further.
© ETS-LINDGREN L.P. – JANUARY 2003 7 REV D – PN 399212
Installation MODEL 2081 TURNTABLE SERIES
7. After the turntable is level the installation specialist will tighten
all lock-nuts accompanying the leveling screws to lock the height of the turntable into place.
8. Anchor the turntable through the anchor holes with the
appropriate bolts (provided).
9. With the electrical breaker still in the OFF position, re-install
the drive pinion.
CAUTION Electrical connection should only be performed by a qualified electrician and in compliance with all applicable regulatory agencies.
10. Connect the fiber optic control cable and install the power
connection. The “Electrical Installation” section provides guidelines for the installation of the electrical connection.
11. Return the breaker in the center of the turntable to the ON
position.
CAUTION Keep all body parts away from the drive pinion when the turntable in energized.
12. Rotate the turntable using the controller to verify proper
operation.
13. Set the travel limits, if desired, by following the instructions in
the section titled “Setting Travel Limits”.
14. Install the ground ring flange provided around the turntable
with flat head screws (not provided). Install the stainless steel wear strip and apply conductive grease according to the “Ground Ring Installation” section.
15. With the key provided, adjust the speed of the turntable while it
is running on the CW or CCW direction until the desired speed is obtained.
16. Install the top sections of the turntable to complete the
assembly.
8 © ETS-LINDGREN L.P. – JANUARY 2003
REV D – PN 399212
MODEL 2081 TURNTABLE SERIES Installation
GROUND RING INSTALLATION
The ground ring assembly includes a floor flange which interfaces with the brush ring located on the perimeter of the turntable. The floor flange provides constant electrical contact with the user’s ground plane and is usually installed with the turntable.
Mounting methods vary according to user specifications. Clearance holes are provided along the outside perimeter of the ground ring as a means of attaching the ring to a customer supplied ground plane. These mounting holes are provided at evenly spaced intervals.
1. When attaching the ground ring, first center and level the
turntable assembly into the turntable pit. The cutout diameter in the floor needs to be per the Dimensional Drawing for the table.
2. Install the floor flange around the turntable. A gap of 5/16” to
7/16” should be maintained around the turntable. Trim flange to length by match drilling with floor and installing ¼-20 flathead screws.
3. Install wear strip on inside of floor flange by aligning with top
of turntable flange.
4. Make sure that pre-drilled mounting holes in wear strip are
aligned to 2.54cm (1.00”) from bottom of flange.
5. Trim wear strip to size after ensuring that the full
circumference of the flange is covered by the strip.
6. Using pre-drilled holes on wear strip as a template, drill holes
through the flange.
7. Secure wear strip to floor flange using 6-32 x 3/8” hex head
stainless steel thread cutting screws (furnished with turntable).
8. Apply conductive grease (furnished with turntable) on wear
strip along the brush contact area (approximately 1” to 2” from the top of the strip).
© ETS-LINDGREN L.P. – JANUARY 2003 9 REV D – PN 399212
Electrical Installation MODEL 2081 TURNTABLE SERIES
ELECTRICAL INSTALLATION
CAUTION It is important that this procedure be performed by a qualified electrician prior to energizing the unit.
The Model 2081 is designed to operate using either 208-230 VAC three–phase 60 Hz or 400 VAC three phase 50 Hz power. The appropriate power requirements are determined when the order is placed. Other power ratings are available on a special order basis.
1. The branch circuit supplying power to the motor base should
be protected from excess current according to local electrical codes. ETS-Lindgren has provided a three pole circuit breaker integral to the relay control enclosure. This circuit breaker also serves as a service switch and removes motor power from both the control enclosure assembly and the motor.
WARNING With the circuit breaker in the off position some parts with AC hazards still present a potentially lethal shock hazard.
2. Check that the conductor size is adequate for the motor load
and the distance from the mains source. Improperly sized conductors will lead to a high voltage drop in the power conductors and cause reduced starting torque and premature motor failure.
3. The motor base assembly is provided with an unterminated
flexible conduit with input power leads exposed. This flexible conduit is to be terminated into a junction box fitted on or near the motor base. Terminate the power leads of the motor base assembly according to local electrical code requirements.
2081 Electrical Wiring Color Code Line Conductors (3 each) Neutral N/A Blue Protective Earth Green with yellow
208-230 VAC 60 Hz 3 phase
Brown Brown
stripe
380-410 VAC 50 Hz 3phase
Green with yellow stripe
10 © ETS-LINDGREN L.P. – JANUARY 2003
REV D – PN 399212
MODEL 2081 TURNTABLE SERIES Electrical Installation
CONNECTING THE MODEL 2090 POSITIONING CONTROLLER
Any combination of primary devices (towers, turntables, reverberation paddles, MAPS, etc.) can be connected to the two Device Interface ports located on the rear panel of the Model 2090 controller. For easy set up of an EMC facility, it is recommended that the turntable be connected to the Device 2 interface port. The controllers default settings are for a tower connected to the Device 1 interface port and a turntable connected to the Device 2 port.
Primary device connection is accomplished by way of a dual fiber­optic cable included with the device. This cable terminates into two ST connectors that are identical at both ends. The cable is symmetrical; either end can be connected to the controller. A fiber optic cable that is connect to the IN port of a device should, at the other end, be connected to the primary OUT port of the motorbase. A fiber connected to the OUT port of the device should, at the other end, be connected to the primary IN port of the motorbase. Older motor base designs have only one fiber optic connector pair, while the newest motor base interface provides a secondary interface reserved for future expansion.
NOTE: Fiber optic cabling for each device should not be allowed to hang unsupported from the rear panel of the controller. The fibers and connectors are easily broken if twisted or bent. Keep the fiber optic cables as straight as possible from the connector to the protective sheath.
Using the Model 2090 Position Controller (or hand controller), rotate the motor base shaft to verify proper operation. Run the motorbase down to the lower limit CCW and then back it off from the lower limit just a bit. This step will help after the turntable is attached to the motorbase and it is time to set the rotation limits for the turntable.
CAUTION The soft rotational limits in the Model 2090 controller must be set. Ensure the travel limit settings will not cause damage to user installed cables and equipment mounted on the table.
© ETS-LINDGREN L.P. – JANUARY 2003 11 REV D – PN 399212
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