Portland Tool & Die MDT-4000 User manual

For your safety, read and understand manual before use.
Ver: 1.0
8-Aug-2022
MDT-4000
Angular Positioning Stage
User Manual
Original Instructions

MDT-4000 User Manual (Original Instructions)
Ver: 1.0
Page 2 of 37
8-Aug-2022
1. PRODUCT OVERVIEW ..................................................................................................................................... 4
2. SAFETY CONSIDERATIONS .............................................................................................................................. 5
2.1. SAFETY STANDARD COMPLIANCE STATEMENT..................................................................................................... 5
2.2. SAFETY SYMBOLS ........................................................................................................................................ 5
2.3. EXPLOSION HAZARD .................................................................................................................................... 5
2.4. DESCRIPTION OF INTENDED USE...................................................................................................................... 5
2.5. LIST OF PROHIBITED USES.............................................................................................................................. 6
2.6. WARNINGS ............................................................................................................................................... 6
2.7. PERSONAL PROTECTIVE EQUIPMENT................................................................................................................ 6
3. REGULATORY MARKINGS ............................................................................................................................... 7
4. SYSTEM SPECIFICATIONS ................................................................................................................................ 8
4.1. MECHANICAL SPECS .................................................................................................................................... 8
4.2. MOTION................................................................................................................................................... 8
4.3. ELECTRICAL SPECS....................................................................................................................................... 8
4.4. ENVIRONMENTAL SPECS ............................................................................................................................... 9
4.5. EMC EMISSION.......................................................................................................................................... 9
4.6. EMC IMMUNITY......................................................................................................................................... 9
4.7. ELECTROSTATIC DISCHARGE (ESD).................................................................................................................. 9
4.8. EXPECTED SERVICE LIFE ................................................................................................................................ 9
5. INSTALLATION .............................................................................................................................................. 10
5.1. UNPACKING AND INITIAL SETUP INSTRUCTIONS................................................................................................. 10
5.2. AC MAINS DISCONNECT.............................................................................................................................. 12
5.3. INSTALLATION CONFIGURATION:FREESTANDING USING LEVELING LEGS .................................................................. 12
5.4. INSTALLATION CONFIGURATION:BOLTED TO FLOOR .......................................................................................... 12
5.5. INSTALLATION CONFIGURATION:INVERTED ON CEILING...................................................................................... 12
5.6. ADDITIONAL INSTALLATION WARNINGS.......................................................................................................... 13
5.7. CABLE ROUTING GUIDELINES........................................................................................................................ 16
5.8. SAFETY GUIDELINES FOR FIXTURING ATTACHED TO THE TURNTABLE ....................................................................... 16
6. SYSTEM OPERATION..................................................................................................................................... 17
6.1. FRONT PANEL ELEMENTS............................................................................................................................ 17
6.2. REAR PANEL ELEMENTS.............................................................................................................................. 18
6.3. EMERGENCY STOP SYSTEM.......................................................................................................................... 18
6.4. CURRENT ANGLE READOUT.......................................................................................................................... 19
6.5. DIRECTION OF ROTATION ............................................................................................................................ 20
6.6. DESCRIPTION OF CONTROL INTERFACES .......................................................................................................... 21
6.7. SETTING THE SYSTEM ZERO POSITION............................................................................................................. 22
6.8. USE OF THE MAXIMUM TORQUE SETTING........................................................................................................ 23
6.9. REMOTE CONTROL INTERFACES .................................................................................................................... 23
7. FACTORY DEFAULT CONFIGURATION ........................................................................................................... 24
8. MECHANICAL DRAWINGS AND DIMENSIONS............................................................................................... 25
8.1. PLATTER DETAILS ...................................................................................................................................... 25
8.2. TOP OUTLINE ........................................................................................................................................... 26
8.3. FRONT OUTLINE........................................................................................................................................ 27

MDT-4000 User Manual (Original Instructions)
Ver: 1.0
Page 3 of 37
8-Aug-2022
8.4. BACK OUTLINE.......................................................................................................................................... 27
8.5. BOTTOM OUTLINE..................................................................................................................................... 28
9. MAINTENANCE ............................................................................................................................................. 29
9.1. CLEANING INSTRUCTIONS:........................................................................................................................... 29
10. ACCESSORIES ................................................................................................................................................ 29
10.1. REMOTE EMERGENCY-STOP STATION ............................................................................................................ 29
11. DECLARATIONS ............................................................................................................................................. 30
11.1. MACHINERY DIRECTIVE .............................................................................................................................. 30
11.2. EC DECLARATION OF CONFORMITY ............................................................................................................... 31
12. DISPOSAL...................................................................................................................................................... 33
12.1. INSTRUCTION FOR DISPOSAL THE TURNTABLE. .................................................................................................. 33
13. TROUBLE SHOOTING AND DEBUGGING GUIDE ............................................................................................ 34
14. LIMITED WARRANTY..................................................................................................................................... 35
15. REVISION HISTORY ....................................................................................................................................... 36
16. CONTACT INFORMATION.............................................................................................................................. 37

MDT-4000 User Manual (Original Instructions)
Ver: 1.0
Page 4 of 37
8-Aug-2022
1. Product Overview
The MDT-4000 is a motorized rotation stage that can be controlled remotely via USB, RS-232 or
LAN interfaces or locally with dedicated physical push buttons. It can be used to rotate devices
such as speakers or microphones to measure the output amplitude or receive sensitivity versus
rotation angle. The device under test can be rotated at a constant velocity or in incremental
steps. When at rest, the device is acoustically silent.
The system can be controlled by the local front panel as well as remotely by either USB, RS-232
or LAN interfaces. An embedded webserver allows the system to be controlled remotely from
any device that can run a web browser such as a cell phone or tablet computer.
The Emergency Stop function can be activated either from the dedicated front panel button or
remotely by connecting a remote emergency stop switch to the rear panel terminals. When
activated, the emergency stop function safely decelerates the system if it is currently in motion
and then removes power from the motor to prevent any additional motion.
A high precision gearbox and encoder allow the system to be accurately positioned. The
position of the platter is maintained across power cycles. The platter position is also
maintained if the system is unable to reach the target position.
The drive system is maintenance free and can support or suspend loads up to 100 kg (220 lb).
To aid with cable routing, there is a 50 mm center hole that can be used to cleanly route cables
from below the turntable to the device under test.

MDT-4000 User Manual (Original Instructions)
Ver: 1.0
Page 5 of 37
8-Aug-2022
2. Safety Considerations
2.1. Safety standard compliance statement
This device has been designed and tested in accordance with the safety standard
IEC/EN/BS 60204-1:2006: Safety of Machinery – Electrical Equipment of Machines.This
manual contains information and warnings that must be followed to ensure safe
operation.
2.2. Safety symbols
This symbol is used to indicate potential hazards and warnings.
Refer to the associated warning statement in the manual.
This symbol indicates that the machine may start unexpectedly.
Exercise caution near and around the platform when the system is
controlled remotely.
If the hazardous situation is not avoided, death or serious injury
will occur.
If the hazardous situation is not avoided, a serious injury may
occur.
If the hazardous situation is not avoided, a minor injury may occur.
Important safety information for situations where no personal
injury is possible.
2.3. Explosion Hazard
The equipment is not designed to be used in potentially
explosive environments. It must not be operated in the
presence of flammable liquids or gases.
2.4. Description of intended use
The turntable is intended to be use in an indoor laboratory type environment. Only
personnel trained in the use of the turntable should be allowed to install, configure, and
operate the system.
The turntable is designed to rotate rigid objects that are positioned so the center of
gravity is aligned with the center of the turntable platter. Avoid placing test objects that
have a non-fixed movable mass because the moving mass can shift the center of gravity
as the device rotates and this could lead to a potential for the system to tip or it can
generate a high stress load on the edge of the platform.

MDT-4000 User Manual (Original Instructions)
Ver: 1.0
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When testing small, light objects the turntable can be operated on a level surface when
the adjustable leveling legs are installed. For heavier objects, the turntable should be
firmly secured to the floor or other support structure. If the turntable is attached
inverted to a ceiling or other support structure, ensure that the bolts and support
structure can hold the total weight of the turntable plus the device under test and any
fixturing required to attach the device under test to the turntable.
If the turntable is mounted inverted in a location where someone could move under the
turntable, clearly mark the area under the turntable to warn of the overhead hazard. If
possible, place guardrails around the area under the turntable to prevent someone from
entering that area.
2.5. List of prohibited uses
•Do not stand or sit on the turntable.
•Do not allow the turntable to move a human in any way.
•Do not use the turntable in an explosive environment.
•Do not allow any part of the turntable to be submerged in water or any other liquid.
2.6. Warnings
•This device is intended to be used by skilled operators with technical background
who are familiar with its operation.
•Always remove power from the system before installing or removing test devices
and fixturing from the platform.
•Do not submerge the turntable in water or any other liquid.
•Remove the device under test and any test fixtures before transporting or re-
locating the turntable.
•Route cables near the turntable in conduit or other protective enclosure to avoid
trip hazards.
•When routing cables that connect to the device under test, ensure there is enough
slack to allow the cable to move and twist when the turntable moves.
•Use caution when placing or removing heavy objects to avoid placing all of the
weight on the edge of the turntable platter. Lift the device on/off the platter in a
vertical direction then raise or lower the test device onto the platter.
2.7. Personal Protective Equipment
Wear eye protection when working around the turntable if there is
any kind of device under test attached to the turntable platter.
When there is nothing attached to the platter, there is no eye
hazard.

MDT-4000 User Manual (Original Instructions)
Ver: 1.0
Page 7 of 37
8-Aug-2022
3. Regulatory Markings
The CE mark is a registered trademark of the European
Community. This CE mark shows that the product complies with
all the relevant European Legal Directives.
This instrument complies with the WEEE Directive (2002/96/EC)
marking requirement. This affixed product label indicates that
you must not discard this electrical or electronic product in
domestic household waste.

MDT-4000 User Manual (Original Instructions)
Ver: 1.0
Page 8 of 37
8-Aug-2022
4. System Specifications
4.1. Mechanical Specs
Parameter
Value
Notes
Length, Width
437 mm (17.2 in)
Enclosure dimensions.
Height
100 mm (3.9 in)
Bottom of enclosure to top of platter.
Platter diameter
400 mm (15.7 in)
Center Bore
50 mm (1.9 in)
System Weight
11.67 kg (25.7 lb)
11.97 kg (26.4 Lb)
Without leveling legs.
With 4 leveling legs installed.
Max Load Weight
-Centered
-On edge
100 kg (220 lb)
25 kg (55 lb)
4.2. Motion
Parameter
Value
Notes
Drive Torque
[5 – 20] Nm, [3.7 – 14.7] lb-ft
Electronically limited.
Torque Accuracy
+/- 15%
Max Speed
3 RPM (18 °/s)
Electronically limited.
Angle Accuracy
0.5 deg
Angle Resolution
0.1 deg
Note: The maximum torque that can be applied to the turntable is 130 Nm (96 lb-ft).
The internal drive system may be permanently damaged if excessive torque is applied to
the system. Please use caution to avoid high torque conditions when installing or
removing fixtures.
4.3. Electrical Specs
Parameter
Value
Notes
Voltage
-Typical
-UVLO
-OVLO
-Absolute
maximum
24 Vdc
12 Vdc
30 Vdc
35 Vdc
Internal E-Fuse, automatic reset.
Internal E-Fuse, automatic reset.
Applying voltages above this level will result in
permanent damage to the device.
Current
-Max
-Idle
3 A
0.1 A
Internal E-Fuse, automatic reset.
Power
-Max
-Idle
72 W
2.4 W
Power Connector
Barrel Connector
2.5 mm I.D., 5.5 mm O.D.

MDT-4000 User Manual (Original Instructions)
Ver: 1.0
Page 9 of 37
8-Aug-2022
4.4. Environmental Specs
Parameter
Value
Notes
Temperature (operating)
-Min
-Max
+5 °C (41 °F)
+50 °C (122 °F)
IEC 60068-2-1 & IEC 60068-
2-2: Environmental Testing.
Cold and Dry Heat.
Temperature (storage)
-Min
-Max
+5 °C (41 °F)
+50 °C (122 °F)
Humidity
0 – 90 %RH
IEC 60068-2-78: Damp Heat
0 to 90% RH (5°C to 40°C),
non-condensing at 40°C
Acoustic noise level
-Operating
o<= 5 deg/sec
o> 5 deg/sec
-Idle
< 60 dBPa(A)
< 50 dBPa(A)
< 30 dBPa(A)
Max torque and speed.
Power on, no motion.
Enclosure
IEC 529: IP 23
Shipping
IEC 60068-2-31:2008
4.5. EMC Emission
•EN/IEC 61000-6-3: Generic emission standard for residential, commercial, and
light industrial environments.
•CISPR 32: Radio disturbance characteristics of information technology
equipment. Class B Limits.
•FCC Rules, Part 15: Complies with the limits for a Class B digital device.
4.6. EMC Immunity
•EN/IEC61000-4-3: Generic standards - Immunity for heavy industrial
environments.
•EN/IEC 61326-1: Electrical equipment for measurement, control, and laboratory
use
•NOTE: The above is only guaranteed using accessories listed in this Product Data
Sheet.
4.7. Electrostatic Discharge (ESD)
•EN/IEC 61000-4-2: ± 4 kV contact and air discharge.
4.8. Expected Service Life
•10 Years when used 8 hr. per day, 5 days per week, intermittent operation.
•1,000,000 platter rotations

MDT-4000 User Manual (Original Instructions)
Ver: 1.0
Page 10 of 37
8-Aug-2022
5. Installation
5.1. Unpacking and initial setup instructions
The power supply, power cord, leveling legs, and USB cable are packed in a foam tray
that is held in place by a cardboard sleeve. Please remove this accessory package
before attempting to remove the turntable from the shipping container.
After removing the accessories, remove the turntable from the shipping container. The
turntable weighs approximately 11 kg (25 lb). It is recommended to have two people lift
the turntable out of the shipping container. After removing the turntable, please retain
the shipping container and internal foam inserts for future transport.
To install the leveling legs, invert the turntable onto a padded surface, then screw the
leveling legs into the threaded holes near the corners of the turntable base plate. You
should be able to twist the leveling legs by hand. Each leveling leg is shipped with a
locking nut installed near the leveling foot as shown below:
After threading the leveling legs into the base plate of the turntable, tighten the locking
nut against the base plate. This will hold the leveling leg firmly in place so it cannot
vibrate and generate acoustic noise. See the following picture that shows the locking
nut correctly positioned.
Ensure that the leveling legs are adjusted so the maximum distance
from the bottom of the leveling leg to the bottom of the turntable is no more than 65
mm (2.5 inch) as shown in the following picture.
Locking nut
Height adjustment nut
Locking nut tightened against
the base of the turntable.