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.
BELT TENSION........................................................................................................................................... 26
HAND CONTROL UNIT .......................................................................................................................... 27
NOTI CE: This product and relate d documentation must be r eviewed fo r familiarization
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 i n jury or dea th.
PROTECTIVE EARTH GROUND (SAFETY GROUND)
Indicates protective earth terminal. You should provide uninterruptible safety
ea rth ground from the main power s ource to the pro duct input wiring
termi n a l s , power cord, or su pplied power cord set.
CAUTION
minor pe r sonal inju r y and/or property damage. Included text gives proper
procedures.
WARNING
SEVERE personal in j u r y and/or property damage. Included t e xt gives proper
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
inte rruption of the protecti ve (grounding) con duc tor, inside or outsi de the
ins tr um ent, or discon nection of the protective earth te r minal could result in
pers onal injury.
When product is marked with this symbol refer to
Indicates pre s ence of hazardous voltage. U nsafe practice
Denotes a hazard. Failure to follow instructions could result in
Denotes a hazard. Fa ilure to follow instructions could result in
throu gh th e prot ective conduc tor of the AC power
(or modifying) the unit by yourself may void your warranty. If you attempt to
se rvice the u ni t by yo ur s elf, disco nn e c t all elect ri cal power bef ore starti ng.
There are voltages at many points in the instrument which could, if
contacted, cause personal injury. Only trained service personnel should
perf orm adjustments and/or service procedures upon this instru ment.
Capacitors inside this instrument may still be CHARGE D even when
instrument is disconnected from its power source.
ONLY QUALIFIED PERSONNEL
STAY CLEAR
of moving components during operation of equipmen t.
should operate (or service) this equipment.
servicing
Page 5
MODEL 2065 LOPRO TURNTABLE Introduction
Archived 3/18/10
INTRODUCTION
The Model 2065 is an electric-powered turntable platform system
designed to be used with the Model 2090 Positioning Controller
for EMI compliance testing. The Model 2065 Turntable is a lowprofile design which is constructed of PVC plate with a textured
ABS top and other non-metallic components. The 1.2 meter
diameter turntable is provided as an easily assembled system
which can be disassembled for service or to be moved. The
mechanical assembly, motor drive unit, and shaft kit (optional),
comprise the three basic subassemblies of the turntable.
The mechanical assembly is shipped assembled with the top, base,
gear box, support bearings and drive belt included. The bearings on
which the table rotates are integral to the top and bottom of the
turntable. Three independent bearing races provide support for the
inner and outer portions of the turntable top. These bearings are of
a completely non-metallic construction. There are four keepers
located on the outside of the turntable top. These keepers prohibit
the bearings from shifting out of position during shipment. When
the user has the table set in place and is ready to begin testing,
these should be removed.
The motor drive, encoder and limit switch assemblies are located
in a shielded enclosure with state of the art I/O provided via a fiber
optic interface. The motor drive is coupled to the drive shaft with a
flexible hose coupling. The other end of the shaft connects to the
turntable gear box with a keyed coupling that clamps between the
two shafts. The shaft assembly transmits torque from the motor
drive to the gear box at the table. The drive belt, which runs around
the underside of the turntable at its perimeter, is driven by a pulley
in the gear box.
To limit over-travel of the turntable in either direction of
movement, fixed mechanical limits are installed in the motor base
enclosure. The primary means of limiting the turntable’s rotation
are the soft (electrical) limits which are set on the front panel of the
Model 2090 Positioning Controller. These soft limits should be set
within the mechanical limits. The mechanical limits are secondary
and a safety stop to limit the turntable’s total rotation.
Overshoot of the turntable’s rotation is limited by an electric brake
which is directly attached to the drive motor. The Model 2090
Positioning Controller compensates for any remaining overshoot
by applying an overshoot compensation routine which is
accomplished automatically without any user input.
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 Motor Base Unit of the Model 2065
Low Profile Turntable. Functions include: Clockwise (CW),
Counterclockwise (CCW) and Hand/Main Control selection.
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
than 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 custom order. The standard length provided
is 10 m (32.8 ft).
Shaft Kit (Optional): This option allows the user to position the
electric drive motor farther away from the turntable. The
extension shaft separates the turntable and the drive motor by as
much as 5 m (16.4ft). Following the detailed instructions in this
manual, it may be cut to a custom length. This option must be
specified at the time the order is placed.
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.
Do not attempt to service unless qualified to do so. As with any
electrical equipment, ensure that electrical power to the unit 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 this equipment with the protective covers removed.
Do not, at any time, place hands or feet in the vicinity of the drive
gears on the turntable.
Do not operate the turntable while someone is physically on the
turntable top.
Regularly inspect the equipment for loose fasteners and wear.
Conduct appropriate scheduled maintenance in accordance with
factory recommendations.
Only use replacement parts and fasteners ordered directly from the
factory.
The fiber optic cable must
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.
The keepers on the outside edge of the turntable should be in place
when the turntable is to be moved or relocated. This will prevent
damage to the bearings on which the turntable top rotates.
The Model 2065 turntable is shipped partially assembled. It is
anticipated that assembly will take no longer than 1 hour. Ensure
that a clear area is available to unpack, assemble and install the
turntable. Prior to starting assembly, open the shipping container
and check all parts for any shipping damage. NOTE: Do not
discard any packing material until the turntable is fully installed
and operational.
WHAT IS INCLUDED IN SHIPMENT
Attention: Completely check all packing material for parts before
discarding.
Level
Adjustable Wrench
Phillips and flat head screwdrivers
Shims – if the floor surface is not level
Page 11
MODEL 2065 LOPRO TURNTABLE Electrical Installation
Archived 3/18/10
ELECTRICAL INSTALLATION
CAUTION It is important that this electrical installation
procedure be performed by a qualified electrician, in accordance
with local and national electrical standards prior to energizing the
unit.
CAUTION Ensure power is OFF and secured before proceeding
further. The voltage select switch on the Motor Base Unit must be
set to the proper mains voltage before power is applied to the unit.
The Motor Base Unit of the Model 2065 Low Profile Turntable
allows for the selection of either 115 or 230 VAC mains input
voltage. This selection should be made during installation and prior
to connecting the Motor Base Unit to the power mains.
On the front of the enclosure for the Motor Base Unit, locate the
voltage select switch which is marked for 115 and 230. Switch to
the appropriate position which corresponds to the mains voltage to
be applied. This switch provides a means of selecting the voltage
to be applied to the drive motor, electric brake and internal power
supply.
Determine the mains voltage to be applied to the Motor Base Unit.
The branch circuit supplying power to the motor base should be
protected from excess current according to local electrical codes.
Check that the conductor size is adequate for the motor load with
respect to 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. This condition could
lead to premature motor failure.
CAUTION Keep all body parts away from the drive gears and
drive belt when the turntable is energized. Do not operate the
turntable with the protective guards removed.
Page 12
Electrical Installation MODEL 2065 LOPRO TURNTABLE
Archived 3/18/10
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 fiber
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. Disconnect the power for the Model 2090 and the
motor base before proceeding with the assembly of the turntable.
Disconnect the fiber optic cables from the units so they will not be
damaged during installation.
CAUTION Ensure power is OFF and secured before proceeding
further.
1) Position the turntable mechanical assembly on the floor. The
turntable mechanical assembly has a 44 inch (112 cm) wide
base plate that needs to rest on a flat surface. To insure proper
alignment of the drive shaft, the bottom surface of all three sub
assemblies: the TT mechanical assembly, the drive shaft
assembly and the motor drive will need to be installed at the
same level with each other. It may be necessary to place shims
under the base if the floor is not flat. The table base plate has
four holes for fastening the unit to the floor using 5/16"
diameter screws but will stay in place due to its own weight.
2) After the turntable is in position, remove the plastic gear box
cover plate by loosening the 4 plastic bolts used to hold it in
place.
If the optional shaft kit was purchased please continue to the
Optional Shaft Kit Installation Instructions and disregard the
remainder of the instructions in this section.
3) Install the aluminum shaft adapter to the black shaft out of the
turntable gearbox. A ¼” phenolic (brown plastic) pin is used
to key it to the black shaft. A spacer piece fits inside the shaft
adapter, between the adapter and the pin to help secure the pin
in place. Two setscrews (size 8-32) lock the adapter in place on
the shaft.
4) The gray hose coupling with two hose clamps around it is now
slipped on to the shaft adapter.
5) The motor drive is held to the turntable base by an aluminum
bracket. The bracket attaches to the ¾” base plate of the
turntable using two ½-13 x ¾” bolts. There are two standoffs
that attach the bracket to the motor base at the correct distance.
6) Position the motor drive so that its shaft slips into the hose
coupling. The bracket installed in step 5 should now be in
place. Secure the bracket to the motorbase using the ¼ x 1-1/4”
hex head cap screws provided. Both hose clamps should be
tightened to secure the gray hose coupling around the shafts.
7) The gearbox cover can now be placed on the gearbox and the 4
bolts that hold it in place inserted and tightened.
Optional Shaft Kit Installation Instructions MODEL 2065 LOPRO TURNTABLE
Archived 3/18/10
OPTIONAL SHAFT KIT INSTALLATION
INSTRUCTIONS
The Optional Shaft Kit allows the motor base to be positioned up
to 5 meters (16.4 ft) away from the turntable. If the optional shaft
kit was not purchased as part of this installation please continue to
the “OPERATION” section.
The optional drive shaft assembly consists of an inner shaft
mounted in an outer housing that is supported in the center and at
each end by plastic floor supports. The instructions that follow
provide guidance through the assembly process for the shaft as
well as instructions for cutting the shaft components if a shorter
distance between the motorbase and turntable is required.
WHAT IS INCLUDED IN SHIPMENT
Item Quantity
Shaft Sections 2 ea.
Shaft Coupler 1 ea.
¼-20 Self Tapping Screws 4 ea.
End Floor Supports –these have a single clamp for a
single item
Mid Floor Support – this has a double clamp for
two items
Shaft Housings, 4.5 inches DIA 2 ea.
White Bushings – one will go at each end of the
shaft housing assembly and one will go in the
center between the two shaft housing components.
MODEL 2065 LOPRO TURNTABLE Optional Shaft Kit Installation Instructions
Archived 3/18/10
TOOLS REQUIRED
In addition to the tools required for basic installation:
Tape Measure
Drill
Assorted Bits including 7/32
Hand or Reciprocating Saw
Marker
File and or Sandpaper
DETERMINING THE LENGTH OF THE SHAFT
In order to install the shaft kit the customer needs to determine the
dimensions DIM1 as shown on Drawing 4 in the back of the
manual. This is the distance from the center of the turntable top to
the end of the drive shaft floor support.
If DIM1 needs to be shorter than the standard 5 m (16ft 5 inches),
then the drive shaft assembly needs to be cut to the proper lengths
before attaching it to the turntable. Refer to the section “CUTTING
THE DRIVE SHAFT ASSEMBLY” for instructions on cutting the
shaft if a shorter length is required. Follow these instructions
before continuing. No cutting is required if the standard length
above is acceptable for installation.
The shaft must be the correct length before proceeding.
To assemble the two sections of the drive shaft (A and B as shown
in Drawing 8) using the coupling provided. Insert the 6.0 cm (2.37
in) diameter plain ends of the shaft sections into the coupling all
the way to the step. Match drill the shaft sections through four predrilled holes in the coupling and install the four ¼-20 self tapping
screws provided.
Page 18
Optional Shaft Kit Installation Instructions MODEL 2065 LOPRO TURNTABLE
Archived 3/18/10
SHAFT HOUSING INSTALLATION
Next assemble one of the two PVC outer shaft housings into one of
the two end floor supports. The floor supports are split into a top
and bottom half that clamp together. Loosen the top ½-13 hex nuts
to separate these two split pieces. Insert one white bushing
followed by the end of one housing into the floor support. Then
tighten the two top nuts to clamp the floors support around the
housing and bushing.
Install the housing assembly onto the base plate of the turntable
mechanical assembly using two ½-13 x 1.5 inch hex bolts that will
be inserted through the tie plate. Be sure the housing is square with
the turntable base to insure proper shaft alignment.
If DIM1 is 3035mm (9ft 11.5 inches) or less then the mid floor
support is not needed go on to the “Drive Shaft Installation”
section.
If DIM1 is more than 3035mm (9ft 11.5 inches) then the mid floor
support is required.
If required, assemble the middle floor support with a white bushing
onto the end of the shaft housing. Be sure the housing is square
with the turntable base to insure proper drive-shaft alignment after
final assembly.
The drive shaft has two “reduced ends”. Be sure the 2.69 cm (1.06
in) diameter end with the groove goes toward the turntable. The
knurled 2.54 cm (1.0 in) diameter end will point toward the motor
drive.
NOTE: The coupling on the drive shaft will not fit through the
white bushing if a middle support is used. The coupling should be
on the motor drive side of the middle support when the drive shaft
is installed into the housing.
Page 19
MODEL 2065 LOPRO TURNTABLE Optional Shaft Kit Installation Instructions
Archived 3/18/10
1. Insert the turntable end of the drive shaft through the housing
assembly and into the clamp coupling on the gearbox. A ¼
inch diameter x 1 inch dowel pin is furnished to key the shaft
to the coupling and prevent slipping.
2. Loosen the three 3/8-16 hex head screws on the gearbox
coupling before insertion. Place the ¼ inch diameter x 1 inch
long dowel pin into the groove of the drive shaft and line the
shaft and pin up with the groove in the coupling. With
everything aligned, push the shaft and pin into the coupling.
Leave about a ¼ inch gap between the 6.01 cm (2.37 in)
diameter shaft shoulder and the end of the coupling. Then
slowly tighten down the three screws on the coupling.
3. If the mid floor support was not required because DIM 1 was
less than 3035mm (9ft 11.5 inches then delete the second shaft
housing, skip step 4, and go on to step 5.
Otherwise continue with the next step.
4. If the second shaft housing is required then slip it around the
shaft, into the middle floor support and clamp it in place. Only
the one bushing that was installed earlier is needed in this
support. There should be one more bushing that will be used in
the next step.
5. Install the remaining bushing and floor support onto the motor
drive end of the shaft housing. Guide the 2.54 cm (1 in)
diameter end of the shaft to get it through the white bushing.
The end of the shaft should be sticking out of the bushing
approximately 5.08 cm (2.0 in). Be sure the housing extends
out square with the base of the table to insure proper alignment.
CONNECTING THE SHAFT TO THE MOTOR
DRIVE
Install the hose coupling onto the steel shaft of the motor drive unit
with the two hose clamps provided resting loosely around the hose.
Position the motor drive on the floor and slide the unit into place
with the hose coupling connecting both shafts. Bolt the aluminum
Optional Shaft Kit Installation Instructions MODEL 2065 LOPRO TURNTABLE
Archived 3/18/10
tie bracket in place and installe one hose clamp onto the steel drive
shaft and one onto the plastic shaft.
The floor supports and motor drive unit can now be fastened to the
floor using 5/16 inch diameter screws through the mounting holes
in the bottom base of the shaft supports and motor drive.
Reinstall the gearbox cover using four 3/8-16 x 1 inch hex screws.
Be careful not to over-tighten these plastic bolts.
If desired cables can be run along a slot under the base of the
turntable up through the opening at the center of the table. The slot
is 1 cm (.40 in) deep and 2.54 cm (1 in) wide. It should accept a
cable as large as 3/8 inch diameter.
MODEL 2065 LOPRO TURNTABLE Optional Shaft Kit Installation Instructions
Archived 3/18/10
CUTTING THE DRIVE SHAFT ASSEMBLY
The inner drive shaft is shipped separate from the turntable and
consists of the following:
Drive shaft section (A) is 2.37 inches diameter by 82 inches long
with a grooved 1.06 inch diameter end for the turntable side.
Drive shaft section (B) is 2.37 inches in diameter by 72 inches long
with a knurled 1.0 inch diameter end for the motor drive side.
A shaft coupling with ¼-20 self-tapping screws for joining the
above two shaft sections.
Follow the steps below to cut the shaft to the desired length. The
material is PVC and can be cut with a hand saw or reciprocating
saw with a 6 inch long blade.
1. Determine the distance DIM1 from the center of the turntable
to the mounting holes in the floor support next to the motor
drive unit. This DIM1 dimension will be critical in figuring the
length of the drive shaft and shaft housing.
2. Determine the total length that the drive shaft needs to be after
both sections (A) and (B) are connected with the coupling.
3. Subtract 978mm (38.5in) from DIM1 in step 1 to get the total
overall length of the shaft.
4. Now subtract 6.3 mm (.25 inch) more to get the total combined
cut length of sections (A) and (B). Note that the coupling will
add 6.3mm (.25 inch) to the shaft length after the two sections
are assembled.
5. Divide the total cut length in step 4 in half. Cut shaft (B) longer
than (A) as follows:
a. Add 3 inches to this half length and mark shaft A to this
length measuring from the 1.0 inch diameter end.
b. Subtract 3 inches from this half length and mark shaft B
to this length measuring from the 1.06 inch diameter
end.
Optional Shaft Kit Installation Instructions MODEL 2065 LOPRO TURNTABLE
Archived 3/18/10
This will make the coupling offset 3 inches from the center
after it is assembled.
NOTE: Be sure to measure and mark each section from the small
end (NOT THE PLAIN END). The length of section A (on the
turntable side) should be at least 150mm (6 inches) longer than the
other section B (on the motor side).
6. Place the shaft sections side by side to double check the length
from small end to small end. Offset the cut marks 6.35mm (.25
inch) for the coupling. If the length is okay then cut the shaft
pieces to length at the marks.
7. De-burr the cut ends before installing them in the coupling.
8. Install the plain end of each shaft into the coupling all the way
to the step. The total overall length should be close to the
length calculated in step 3.
CUTTING THE SHAFT HOUSING
9. The shaft housing(s) need to be cut next:
a. If DIM1 in step1 was 3035mm (9ft 11.5inches) or less
then the middle floor support IS NOT required – only
one housing will be used. Continue to step 10.
b. If DIM1 is more than 3035 mm (9ft 11.5inches) then
the middle floor support will be required – two
housings will be used. Continue to step 11.
10. Determine the total length of the shaft housing. Only one
housing will be used. Subtract 4.75 inches from the overall
length of the assembled shaft in step 3. Then cut one of the two
housings to this length +/– 1/16 inch. Discard the other unused
housing and mid floor support. Skip to step 12.
11. Determine the total combined length of the two shaft housings.
Both housings will be used along with the middle floor
support. Subtract 5.75 inches from the overall length of the
assembled shaft to get the combined length of the housings.
Cut each housing to one half this length +/- 1/16 inch. After
Please refer to the Model 2090 Positioning Controller manual if
you are unfamiliar with the operation of the unit. A 2090 manual is
included with each 2090 shipment and is also available for
download from our website.
With the assembly complete, the Model 2090 controller will need
to be connected to the unit and power applied to both the motor
base and controller in order to continue. Refer to the electrical
installation section if you have questions about how to connect the
fiber optic cables.
Using the Model 2090 Positioning Controller check the CW and
CCW rotation in both directions by a few degrees. The position in
degrees increases (+) in the CW direction and decreases (-) in
CCW direction.
The turntable is calibrated at the factory to read out 360 degrees (+
or - 1 degree) for one complete revolution. If the table is not within
this accuracy, the unit can be re-calibrated per the instructions
below.
EDITING MODEL 2090 POSITIONING
CONTROLLER CONFIGURATION
PARAMETERS
To edit a configuration parameter, press the PARAM key to
display the current parameter. Pressing the PARAM key
repeatedly will scroll down through the parameter list, showing
each parameter in turn. While viewing a parameter, the STEP
keys (INC/DEC) may be used to scroll up or down the parameter
list. This reduces the effort necessary to scan through a long
parameter list using the PARAM key. Pressing any of the
LIMIT/POSITION selection keys will return the display to that
selection. Pressing any of the remaining motion keys will return
the display to the current position and execute that motion.
Pressing the PARAM key again will return to the last displayed
parameter in the list, allowing easy transition between parameter
adjustment and device operation.
Once the desired limit, position or parameter is visible in the
display window, pressing INCRM, DECRM, or ENTER will
toggle into edit mode. The lowest adjustable digit will flash on
and off. Pressing the LOCAL key for that device will switch the
flashing digit to the next higher digit. In this way, it is possible to
rapidly adjust any digit of a multi-digit parameter or limit.
TURNTABLE ENCODER CALIBRATION
The display symbol C refers to the encoder calibration parameter.
This setting is used to convert the encoder count values returned
from a motor base into the corresponding centimeter or degree
position reading. For turntables, this represents the number of
encoder counts per revolution. Using this parameter, a variety of
standard, retrofit, and custom devices can be used. The setting for
the Model 2065 LoPro Turntable is:
3786 for models with a black turntable top
3665 for models with a gray turntable top
If the given value does not appear to work correctly, the encoder
calibration value can be determined using the following procedure:
2. Insure that the turntable is positioned to allow more than a full
revolution of travel in the clockwise direction and use the
STEP keys to run the turntable clockwise a few degrees to
remove any play in the table.
3. Mark the current location of the turntable against the ground
ring (masking tape works well), and set the current position
reading to 000.0.
4. Using the STEP keys, rotate the turntable clockwise until it is
again aligned with the mark on the ground ring. For best
results, the last motion should always be in the clockwise
direction to insure that any play in the gearing between the
motor and encoder is accounted for.
Page 26
Operation MODEL 2065 LOPRO TURNTABLE
Archived 3/18/10
5. Record the reading of the display, ignoring the decimal point
(i.e. 360.0 would be 3600). This is the encoder calibration
value. NOTE: If the value is below 3600, the resolution of the
encoder is low and thus the 2090 will not provide 0.1 degree
resolution, even though the display shows that digit. If the
value has gone past 9999, the encoder has too many counts per
meter and the 2090 can not correct for it. In this case, contact
ETS-Lindgren for assistance.
6. Enter this value for the encoder calibration value and reset the
limits and position information.
7. Test the turntable by moving it a complete revolution and
comparing the alignment marks. It may be necessary to adjust
the encoder calibration value up or down slightly depending on
the result. NOTE: When scanning between limits, it is not
uncommon to have a small discrepancy between the absolute
position of the table and the display on the 2090. This is
because reversing the direction of rotation reverses any gear
play between the encoder and the table top, allowing that play
to be visible in the positioning accuracy.
TT CALIBRATION EXAMPLE
The table is set at the 0 degree position. A piece of tape is placed
on the edge of the TT to line up with the edge of the gearbox
cover. The table is stopped when the tape travels exactly 360
degrees around. The display on the 2090 now reads 356.3 degrees
which is recorded.
The table is rotated CCW back to 0. The parameter button is set on
the “C” setting. The “C” digits display 3430. A new “C” setting is
now calculated:
New “C” = (356.3 divided into 360) times 3430 = 3395 (rounded
off)
Decrement the C parameter to 3395 and “ENTER” is pressed.
Then the “current position” button is pressed to get back to
operation mode.
(REFER TO DRAWING 11 in the back of the manual)
The motor drive unit contains a mechanical limit switch
mechanism that is coupled to the encoder shaft inside the drive
unit. For continuous rotation it is necessary to disengage the
coupling per instructions below. This will then prevent the
mechanical limits from being engaged. The soft (electrical) limits
that are set on the 2090 remain functional and can still be used to
limit TT travel.
CAUTION All power must be turned off and locked out before
opening the drive unit.
CAUTION Exercise care when using the continuous rotation
feature so as not to damage user installed cables and equipment
mounted on the table.
A hex wrench and crescent wrench are required to disengage the
shaft coupling.
The capacitor above the coupling will need to be moved out of the
way by removing the mounting nut on the outside of the box. It can
then be shifted to the side.
There are two setscrews on the coupling of the .63 cm (.25 in) DIA
shaft that drives the limit switch actuator inside the box. Loosen
these setscrews and push the coupling back on the shaft to
disengage it from the encoder shaft then tighten the setscrews
back. With the teeth disengaged the switches are now disabled.
The CW and CCW limit buttons on the 2090 will continue to
function at their settings.
The total travel between the mechanical limits is between 370 and
400 degrees. This is fixed by the engagement mechanism inside
the drive unit and is non-adjustable. Set the 0 degree position on
the 2090 so that the 2090 moves the table between the mechanical
limits without engaging them in normal operation.
EXAMPLE (CW - clockwise, CCW - counterclockwise)
The table is rotated CCW until it stops at the mechanical limit. The
table current position is then set at 0. Then it is rotated CW untill
it stops at the CW mechanical limit switch. The controller now
reads 385 degrees which is the full travel between mechanical
limits. The current position on the 2090 is then reset to 360 about
10-15 degrees from the CW mechanical limit. This will keep it
from hitting both mechanical limits when rotating from 0 to 360
during operation by the 2090.
CAUTION: ON RESETTING CURRENT
POSITION ON 2090
The stopped position of the TT platform at 0 degrees may drift
overtime depending on usage. The 0 degree position of the 2090
controller is fixed with respect to the mechanical limits described
in the “SETTING CURRENT POSITION ON 2090” section if
they are not disabled per the instructions in the “CONTINUOUS
ROTATION / DISENGAGING MECHANICAL LIMIT
SWITCHES” section.
The platform can be rotated periodically back to a desired position
and the 2090 current position can be reset to 0 only if the
mechanical limits are disabled. The CW and CCW limits on the
2090 will continue to function with the mechanical limits disabled.
If the mechanical limits remain in operation, the 360 travel on the
2090 will no longer be between mechanical limits and normal
operation will be interrupted if they are not disabled per the
instructions in the “CONTINUOUS ROTATION /
DISENGAGING MECHANICAL LIMIT SWITCHES” section.
There is a 1 cm (.40 in) high by 2.54 cm (1.0 in) wide slot on the
bottom side of the TT base that can be used to run 3/8 inch
maximum DIA cable from the side up through the center opening
of the TT.
BELT TENSION
The drive belt is furnished fully tensioned on new units. After
usage the belt may need to be tightened. (Refer to drawing 5 at the
back of this manual.) To take up any slack in the belt, loosen the 6
bolts on the gearbox, move it outward and retighten.
To connect the Hand Control Unit (HCU), remove the connector
cap on the motor base. This connector is located adjacent to the
fiber optic connectors on the side panel. Plug the cable connector
from the HCU into the receptacle on the front panel of the Motor
Base Unit and turn until tightened. The HCU is now ready to
operate. Be sure to coordinate the use of the HCU with the
operation of the Model 2090 Positioning Controller.
To allow the HCU to operate, push the control switch from MAIN
to HAND. When in the HAND position, the Model 2090
Positioning Controller is overridden until control is returned by
the HCU. If the Model 2090 Positioning Controller is left on
while the HCU is used, all position changes are recorded by the
Model 2090 Positioning Controller.
CAUTION Do not plug the Hand Control Unit into the motor
base while the Motor Base Unit is operational. Coordinate with
the operator of the Model 2090 Positioning Controller before
plugging in, using or unplugging the Hand Control Unit. Do not
push the CW and CCW buttons simultaneously. Be sure that the
motor has come to a complete STOP before reversing direction.
When you are ready to return control back to the Model 2090
Positioning Controller, toggle the control switch from HAND to
MAIN.
Recommended Maintenance MODEL 2065 LOPRO TURNTABLE
Archived 3/18/10
RECOMMENDED MAINTENANCE
Regular maintenance and inspection will prolong the serviceability
of your turntable. Follow this recommended schedule.
CAUTION: Do not perform maintenance while the turntable is
operating.
MONTHLY
Inspect the turntable assembly for loose fasteners, abnormal wear
and oil leaks.
Verify the accuracy of the current position setting on the controller
in relation to the turntable. The stopped position of the turntable
platform at 0 degrees may drift over time depending un usage. See
the sections “Setting Current Position on 2090” and “Caution: On
Resetting Current Position on 2090” for more information about
this procedure.
SEMI-ANNUALLY
Check all parts for wear.
The drive belt if furnished fully tensioned on new units. After
usage the belt may need to be tightened. (Refer to drawing 5 in the
back of the manual.) To take up any slack in the belt, loosen the 6
bolts on the gearbox, move it outward and retighten.
ANNUALLY
1. Grease the plastic miter gears. A silicone grease lubricant is
recommended.
2. Clean the bearing races to remove any dust or dirt that may
have accumulated. (see instructions below for this procedure)
MODEL 2065 LOPRO TURNTABLE Recommended Maintenance
Archived 3/18/10
Cleaning the bearing races
To clean the bearing races the turntable top will need to be
removed.
1. Remove the 8 bolts at the center ring in order to remove the
center plate/flange that holds the turntable down.
2. If the keepers are in place holding the turntable top down at the
four corners of the assembly remove the bolts that hold the 4
keepers in place and the keepers at the same time.
3. Gently lift the turntable top and place it to the side. The bearing
races will now be exposed.
4. Remove the bearings and carefully place them into a container
for safe storage so as not to loose any.
5. Use a clean, damp rag; moistened with water to clean the races.
No lubrication is necessary in the tracks.
6. When you are through cleaning, replace the bearings in the
tracks. Alternate the delrin and nylon bearings to improve wear
characteristics. The delrin bearings are white while the nylon
bearings have a tan tint to them. Gently replace the turntable
surface to its original location. Insert the plate/flange in the
center and the 8 bolts that hold it in place. If desired reinstall
the four keepers at the edge of the turntable surface.
Nominal AC Voltage 115/230 VAC
Input Frequency 60/50 Hz
Current Rating 3.8/2.8 amps
RPM
Phase Single
Motor Horsepower 1/6 HP
MECHANICAL
Turntable Diameter 1.22 m (48 in)
Nominal Turntable
Height
Distributed Load Rating*273 kg (600 lb.)
*Distributed Load Rating applies when load is evenly distributed
on top; no point loads under .19 sq. m (2 sq. ft) should exceed 100
kg (220 lb.); and not over 28.5 kg (63 lb.) should be applied to a 45
degree segment at the table’s outer edge.
EMC Test Systems, L.P., hereinafter referred to as the Seller, warrants that standard EMCO
products are free from defect in materials and workmanship for a period of two (2) years from
date of shipment. Standard EMCO Products include the following:
If the Buyer notifies the Seller of a defect within the warranty period, the Seller will, at the Seller’s
option, either repair and/or replace those products that prove to be defective.
There will be no charge for warranty services performed at the location the Seller designates.
The Buyer must, however, prepay inbound shipping costs and any duties or taxes. The Seller will
pay outbound shipping cost for a carrier of the Seller’s choice, exclusive of any duties or taxes. If
the Seller determines that warranty service can only be performed at the Buyer’s location, the
Buyer will not be charged for the Seller’s travel related costs.
This warranty does not apply to:
Normal wear and tear of materials
Consumable items such as fuses, batteries, etc.
Products that have been improperly installed, maintained or used
Products which have been operated outside the specifications
Products which have been modified without authorization
Calibration of products, unless necessitated by defects
THIS WARRANTY IS EXCLUSIVE. NO OTHER WARRANTY, WRITTEN OR ORAL, IS
EXPRESSED OR IMPLIED, INCLUDING BUT NOT LMITED TO, THE IMPLIED WARRANTIES
OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. THE REMEDIES
PROVIDED BY THIS WARRANTY ARE THE BUYER’S SOLE AND EXCLUSIVE REMEDIES.
IN NO EVENT IS THE SELLER LIABLE FOR ANY DAMAGES WHATSOEVER, INCLUDING
BUT NOT LIMITED TO, DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL
DAMAGES, WHETHER BASED ON CONTRACT, TORT, OR ANY OTHER LEGAL THEORY.
Note: Please contact the Seller’s sales department for a Return Materials Authorization (RMA)
number before shipping equipment to us.