ETS-Lindgren 2087 User Manual

Archived 3/18/10

Model 2087

Electric Powered

Turntable

2 & 3 Meter Models

MANUAL

© EMC TEST SYSTEMS, L.P. - OCTOBER 2002 REV C – PN 399233

MODEL 2087 TURNTABLE SERIES

Archived 3/18/10

EMC Test Systems, 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 EMC Test Systems, L.P.
assuming any liability whatsoever arising out of the application or use of any produ ct or circuit described
herein. EMC Test Systems, L.P. does not convey any license under its patent rights or the rights of others.

© Copyright 2002 by EMC Test Systems, L.P. All Rights Reserved.

No part of this document may be copied by any means

without written permission from EMC Test Systems, L.P.

E-MAIL & INTERNET

[e-mail]
http://www.ets-lindgren.com

USA

1301 Arrow Point Dr., Cedar Park, TX 78613
P.O. Box 80589, Austin, TX 78708-0589
Tel [phone] Fax [phone]

FINLAND

Euroshield OY
Mekaanikontie 1
27510, Eura, Finland
Tel [phone]
Fax [phone]

SINGAPORE

Lindgren RF Enclosures Asia-Pacific
87 Beach Road
#06-02 Chye Sing Building
Singapore 189695
Tel [phone] Fax [phone]

© EMC TEST SYSTEMS, L.P. – OCTOBER 2002
REV C – PN 399233

MODEL 2087 TURNTABLE SERIES

Archived 3/18/10

Table of Contents

INTRODUCTION ........................................................................................................................................ 1

STANDARD CONFIGURATION .............................................................................................................. 2

OPTIONS ...................................................................................................................................................... 3

PRECAUTIONS ........................................................................................................................................... 5

TURNTABLE INSTALLATION CONSIDERATIONS........................................................................... 6

POWER AND SIGNAL LINES ......................................................................................................................... 6

OUTDOOR INSTALLATIONS .......................................................................................................................... 6

ASSEMBLY INSTRUCTIONS ................................................................................................................... 7

GROUND RING INSTALLATION .................................................................................................................... 8

ELECTRICAL INSTALLATION .............................................................................................................. 9

CONNECTING THE MODEL 2090 POSITIONING CONTROLLER..................................................................... 10

SETTING TRAVEL LIMITS ................................................................................................................... 11

OPERATION .............................................................................................................................................. 13

RECOMMENDED PARAMETERS FOR THE MODEL 2090 POSITIONING CONTROLLER ................................... 14

EDITING MODEL 2090 POSITIONING CONTROLLER CONFIGURATION PARAMETERS .................................. 14

TURNTABLE ENCODER CALIBRATION ....................................................................................................... 15

TT CALIBRATION EXAMPLE ...................................................................................................................... 16

SETTING CURRENT POSITION ON 2090 ...................................................................................................... 17

CAUTION: ON RESETTING CURRENT POSITION ON 2090 ........................................................................... 17

HAND CONTROL UNIT .......................................................................................................................... 18

RECOMMENDED MAINTENANCE ...................................................................................................... 19

EVERY SIX MONTHS.................................................................................................................................. 19

EVERY 12 MONTHS ................................................................................................................................... 19

SPECIFICATIONS .................................................................................................................................... 20

ELECTRICAL .............................................................................................................................................. 20

MECHANICAL ............................................................................................................................................ 20

WARRANTY STATEMENT .................................................................................................................... 21

ILLUSTRATIONS ..................................................................................................................................... 22

© EMC TEST SYSTEMS, L.P. – OCTOBER 2002
REV C – PN 399233

MODEL 2087 TURNTABLE SERIES

Archived 3/18/10

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 t h e main power source to the pro duct input wiri n g
terminals, power cord, or supplied power cord set.

CAUTION

minor personal in jury and/or property dama ge . Included text gives proper
procedures.

WARNING

SEVERE personal injury and/or pr operty damage. Included tex t gives proper
procedures.

GENERAL SAF ETY 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 connection of t h e protective earth terminal could re sult 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

© EMC TEST SYSTEMS, L.P. – OCTOBER 2002
REV C – PN 399233

WARRANTY

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 yourself, dis co nn ect all el ectrical power 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 adjus tm ents and/ or service procedure s upon this i nstrument.

Capacitors inside this instrument may still be CHARGE D even when
instrument is discon n e cted from its powe r source.

ONLY QUALIFIED PERSONNEL

STAY CLEAR

of moving components during opera tion of equipm e nt.

shou ld ope rate (or s ervice) this equi pm e n t .

servicing

MODEL 2087 TURNTABLE SERIES Introduction

Archived 3/18/10

INTRODUCTION

The ETS-Lindgren Model 2087 is an electric powered turntable
platform system designed to be used with the Model 2090
Positioning Controller for EMI compliance testing. The Model
2087 is available in 2.03 and 3.03 meter sizes, both designed for
indoor or outdoor use.

The sectional turntable top surface is made of aluminum. The
conductive metal top is fitted with a ground brush to electrically
couple the turntable to the ground plane. The brush provides
continuous contact with the floor flange supplied. 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.

Both 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. This hole also provides access to the limit
switch adjustment knobs and the primary circuit breaker.

To prevent over-travel of the turntable in either direction of
movement, mechanical limits can be adjusted. The limit switch
adjustments are on the encoder/limit assembly which is located
below the turntable top. For continuous rotation without limits,
adjustments can be made in the encoder/limit assembly. Soft limits
can be set within the mechanical limits, using the Model 2090
positioning controller. Signal I/O between the turntable and
positioning controller is provided by fiber-optic control lines.

© EMC TEST SYSTEMS, L.P. – OCTOBER 2002 1
REV C – PN 399233

Standard Configuration MODEL 2087 TURNTABLE SERIES

Archived 3/18/10

STANDARD CONFIGURATION

• Turntable assembly

• Ground ring assembly with ground brush and floor flange

• 230 VAC Electric Motor Unit

• Rotational limit adjust switches

• Continuous or Non-continuous operation

• Ten-meter fiber-optic control cables

• Overall height 280 mm (11”)

• SCAN and SEEK Capability

2 © EMC TEST SYSTEMS, L.P. – OCTOBER 2002

REV C – PN 399233

MODEL 2087 TURNTABLE SERIES Options

Archived 3/18/10

OPTIONS

Model 2090 Positioning Controller: This controller provides
control for two separate devices (ETS-Lindgren towers and
turntables) in any combination, plus the control of four auxiliary
devices. The unit includes a GPIB bus and is compatible with most
popular software.

Hand Control Unit (HCU): 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) and
counter-clockwise (CCW) control.

Slip Ring: This optional 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 current rating for the
standard electrical assembly is 20 amperes. 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 and still maintain 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”) hole
is required to mount this option.

Variable Speed Drive: An optional variable speed drive package
is available with the Model 2087 Turntable. Speed adjustment is
electronically controlled by the Model 2090 Controller via the
front panel or through the GPIB interface.

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.

© EMC TEST SYSTEMS, L.P. – OCTOBER 2002 3
REV C – PN 399233

Options MODEL 2087 TURNTABLE SERIES

Archived 3/18/10

Mounted LISNs: LISNs can be mounted to the underside of some
turntables. This option is only practical on larger turntables with
sufficient clearance.

Additional Fiber Optic Cable: Additional lengths of fiber optic
cable may be ordered.

4 © EMC TEST SYSTEMS, L.P. – OCTOBER 2002

REV C – PN 399233

MODEL 2087 TURNTABLE SERIES Precautions

Archived 3/18/10

PRECAUTIONS

Read this manual completely before starting installation. This
equipment should be installed and operated only by qualified
personnel.

The electrical installation of this product should be accomplished
by an individual who is authorized to so do by the appropriate local
authority. The installation should be in compliance with local
electrical safety codes.

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 operate turntable while someone is physically on the
turntable top.

Do not, at any time, place hands or feet in the vicinity of the drive

pinion on the turntable.

Regularly inspect all equipment and conduct scheduled
maintenance in accordance with the factory recommendations
provided.

Only use replacement parts and fasteners ordered directly from the
factory.

© EMC TEST SYSTEMS, L.P. – OCTOBER 2002 5
REV C – PN 399233

Turntable Installation Considerations MODEL 2087 TURNTABLE SERIES

Archived 3/18/10

TURNTABLE INSTALLATION
CONSIDERATIONS

Pre-planning is essential for a successful installation. Be sure to
discuss your requirements will 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.

6 © EMC TEST SYSTEMS, L.P. – OCTOBER 2002

REV C – PN 399233

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.

o

C (28o F).

MODEL 2087 TURNTABLE SERIES Assembly Instructions

Archived 3/18/10

ASSEMBLY INSTRUCTIONS

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. Check all parts for any shipping damage.

Ensure a clear area is available to assemble the turntable unit
safely. NOTE: Do not discard any packing material until unit is
fully assembled.

2. Remove the bolts which attach the top onto the turntable drive

assembly. Make note of the placement of each top section as it
is removed. Refer to the assembly drawing in the rear of this
manual for more details.

CAUTION Lifting the turntable assembly using a forklift or other
lifting machinery should be performed by qualified personnel.

3. Using a forklift or other appropriate lifting device, place the

turntable bottom or bearing support section into position. If the
turntable is to be installed in a pit, center and level the
assembly.

CAUTION Ensure power is off and secured before proceeding
further.

4. The drawings at the back of this manual illustrate the

placement of floor plates and leveling screws to anchor and
level the turntable. Anchor the turntable through the attachment
holes provided using the concrete expansion bolts provided.
After installing the floor plates and leveling screws, level the
entire turntable by adjusting all the leveling screws between
and under the casters, and in the center section of the turntable.

5. Tighten all lock-nuts accompanying the leveling screws to lock

the height of the turntable into place.

© EMC TEST SYSTEMS, L.P. – OCTOBER 2002 7
REV C – PN 399233