Series
TSTM-DC
Motorized Torque Test Stands
User’s Guide
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Series TSTM-DC Test Stands User’s Guide
Thank you…
Thank you for purchasing a Mark-10 Series TSTM-DC Torque
Measurement Test Stand.
This user’s guide is provided for the following models:
TSTM-DC
TSTMH-DC
TSTM-DC-1
TSTMH-DC-1
TSTM-DC-2
TSTMH-DC-2
With proper usage, we are confident that you will get many years of
great service with this product. Mark-10 test stands are ruggedly built
for many years of service in laboratory and industrial environments.
This User’s Guide provides setup, safety, and operation instructions.
Dimensions and specifications are also provided. For additional
information or answers to your questions, please do not hesitate to
contact us. Our technical support and engineering teams are eager to assist you.
Note:
Except where otherwise indicated, references to “TSTM-DC” refers to all models within the series.
Before use, each person who is to use the test stand should be fully trained in appropriate
operation and safety procedures.
TABLE OF CONTENTS
LIST OF INCLUDED ITEMS ................................................................ 3
SETUP AND SAFETY ......................................................................... 3
OPERATION BASICS ......................................................................... 7
TEST FUNCTION SETUP ................................................................... 9
OPERATING MODES ........................................................................ 16
COMMUNICATION ............................................................................ 19
MAINTENANCE AND SERVICE ....................................................... 21
TROUBLESHOOTING ....................................................................... 21
SPECIFICATIONS ............................................................................. 22
DIMENSIONS .................................................................................... 23
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1 LIST OF INCLUDED ITEMS
Qty. Vertical models
1 Indicator mounting kit
4 Indicator mounting screws, #6-32 x 1/2
1 Series DC4040 control panel
1 Cable, control panel to test frame
1 Encoder cable
1 Base
1 Column cap with hardware
Allen wrench set
1
1 Power cord
Horizontal models
1 Indicator mounting kit
4 Indicator mounting screws, #6-32 x 1/2
1 Series DC4040 control panel
1 Cable, control panel to test frame
1 Encoder cable
2 Mounting leg with hardware
2 Column cap with hardware
1 Allen wrench set
1 Power cord
Additional optional items are available, such as connection cables, and column extensions.
2 SETUP AND SAFETY
2.1 Unpacking and setting up
Carefully unpack the test stand from the box and inspect for any damage. Remove the foam from the
middle portion of the test stand and remove the plywood caps by unscrewing the pair of screws at each
end. Install the indicator mounting kit on the column. For the vertical models, install the base with four
5/16-18 x 1” screws and the top cap with four ribbed push-in rivets. For the horizontal models, install the
two column caps with four ribbed push-in rivets per cap. Save all packaging materials for any future
shipping.
2.2 Mounting
Place the stand on a clean, flat and level work area free from vibration.
For the vertical models, it is suggested to mount the stand to a work bench via screws fastened into the
underside of the base. Failure to properly mount the test stand may make it more vulnerable to tipping,
especially if a column extension is used, causing a hazardous situation.
If desired, the control panel can be secured to the work area with 1/4-20 screws fastened into the
underside of the housing. The control panel can also be mounted using the ESM301-003 mounting kit.
Screws of various lengths are supplied with this kit to accommodate a range of bench thicknesses. Refer
to the following illustration for proper assembly:
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In general, the control panel can be mounted at any angle, although extra care should be taken during
installation and operation.
IMPORTANT: Do not fasten any screws more than 0.25 in [6 mm] into the base of the
control panel, or damage to internal components can occur.
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2.3 Connections and outputs
The power plug and control panel cable must be connected to the rear of the control panel, as shown in
the illustration below:
1
1. Fuse
2
3
4
5
6
7
2. Control Panel Cable Connector
Plug one end of the cable into this connector, and the other end into the connector as shown in
the illustration on the right.
3. RS-232 Connector
Outputs torque only or torque and travel data via RS-232. Also allows for PC control, if
appropriate functions are enabled. Plug one end of the 09-1056 serial cable into this connector,
and the other end into a serial connector on a computer or USB converter.
4. Power Plug Receptacle
Plug the power cord in here. Refer to the Connecting Power sub-section for important safety
information.
5. Power Switch
6. Angle Indication Connector
Plug one end of the RJ11 cable into this connector, and the other end into the connector in the
bottom of the gearbox.
7. Indicator Cable Connector
Interfaces with an M7I or M5I. Plug one end of the 09-1162 cable into this connector, and the
other end into the indicator.
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2.4 Installing an Indicator with torque sensor
1. Once the test stand is in a stable and secure position, install an indicator via four thumb screws.
2. Install a torque sensor onto the slider bracket using the supplied hardware, and insert the Plug &
Test connector into the indicator, as shown in the image below:
2.5 Installing the 09-1162 interface cable
If using test stand functions requiring communication between the torque sensor / indicator and test
stand, such as data output, overload protection, etc., connect the interface cable between the
instrument’s connector and the indicator cable connector on the rear of the control panel. This cable may
be used with an M5I or M7I indicator.
2.6 Safety / proper usage
Typical materials able to be tested include manufactured items such as springs, metals, plastics,
electronic components, mechanical assemblies, packaging materials, and many others. Items that should
not be tested include potentially flammable substances or products, items that can shatter in an unsafe
manner, and any other components that can present an exceedingly hazardous situation when acted
upon by torque.
When using a grip, ensure that it secures the sample in such a way that it is prevented from slipping out
during a test, preventing a potential safety risk to the operator and others in the vicinity. If using a grip or
fixture from a supplier other than Mark-10, ensure that it is constructed of suitably rugged materials and
components.
2.7 Connecting power
Plug one end of the power cord into its receptacle at the rear of the control panel and the other end into a
wall outlet with local earth ground (3-prong connector).
Before turning on power, the following safety checks and procedures should be performed:
1. Never operate the test stand if there is any visible damage to the power cord or the test stand
itself. The test stand is powered by 110V/220V. Any contact with this high voltage can cause
serious injury or even death.
2. Ensure that the test stand is kept away from water or any electrically conductive liquids at all
times.
3. Make sure the electrical outlet powering the test stand has local earth ground (3-prong
connector).
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4. The test stand should be serviced by a trained technician only.
After the above safety checks and procedures have been performed, the test stand may be powered on
and is ready for operation.
3 OPERATION BASICS
3.1 Operational safety
The following safety checks and procedures should be performed before and during operation:
1. Always consider the characteristics of the sample being tested before initiating a test. A risk
assessment should be carried out beforehand to ensure that all safety measures have been
addressed and implemented.
2. Wear eye and face protection when testing, especially when testing brittle samples that have the
potential to shatter under torque. Be aware of the dangers posed by potential energy that can
accumulate in the sample during testing. Extra bodily protection should be worn if a destructive
failure of a test sample is possible.
3. Keep away from moving parts of the test stand. Loose articles of clothing should not be worn. Long
hair should be covered to avoid a hazardous situation.
4. In those applications where samples can shatter, or other applications that could lead to a
hazardous situation, use of a machine guard is strongly recommended.
5. When the test stand is not in use, ensure that the power is turned off to prevent accidental
engagement of any of the controls.
3.2 Basic operation
The slider’s position is adjustable along the column in order to engage and disengage the test sample.
Move the slider lever clockwise to lower the slider’s position closer to the torque plate. The slider may be
locked into position by tightening the friction brake knob located on the opposite side of the slider.
The test stand may be operated by motor or by hand. To begin a motorized test, use the Control Unit to
operate the test stand. For fine manual adjustment turn the knob on the motor drive in the desired
direction.
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3.3 Controls
SOFT KEYS Functions are determined by the corresponding text on the display.
CW Initiates movement in the clockwise direction.
CCW Initiates movement counterclockwise direction.
STOP Stops movement.
EMERGENCY
STOP
3.4 Modes overview
The TSTM-DC has two functional modes:
1. TEST FUNCTION SETUP
In this mode, test functions are configured, such as rate of speed, number of cycles, password
editing, and other functions.
2. OPERATING MODE
This is the operating mode in which testing sequences can be started and stopped.
Stops movement and disables the test stand until reset.
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4 TEST FUNCTION SETUP
This section provides configuration instructions for each function.
After pressing menu, the initial Test Function Setup screen appears as follows:
S P E E D : 2 0 . 0 0
E S C < − − > E N T R
Label Description
ESC Exits Test Function Setup, reverts to Operating Mode
< – Scrolls to the previous function
– > Scrolls to the next function
ENTR Selects the function, allowing it to be modified
When the parameters have been configured as desired and are ready to be saved, press ESC to exit
Test Function Setup. The screen will show SAVE CHANGES? Pressing YES will save the changes and
return to the Operating Mode. Pressing NO will not save the changes and return to Operating Mode.
Note: Changes can be made to an unlimited number of settings before saving.
4.1 Speed
Independent speeds can be set for both directions of movement.
Default setting: 10 RPM / 60°/s
Available settings:
TSTM-DC / TSTMH-DC: 0.01 - 15 RPM [0.05 - 90°/s]
TSTM-DC-2 / TSTMH-DC-2: 0.04 - 60 RPM [0.2 - 360°/s]
C W S P E E D : 1 0 . 7 3
E S C − + E N T R
Label Description
+
–
ENTR Returns to the Test Function Setup menu
ESC Exits the function without saving changes
4.2 Auto return
With this function, the torque plate moves to a limit (torque set point, angle/degree limit, or various event
completions in the M7I), whichever occurs first, and stops. Then, the torque plate returns to the other limit
and stops. The test speed is dictated by the setting described in the previous section. The return speed is
locked to maximum speed.
Increments the speed setting. Holding down + will
increment at an increasin
Decrements the speed setting. Holding down – will
decrement at an increasin
faster rate.
faster rate.
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Default setting: off
Available settings: off, on
A U T O R E T U R N o f f
E S C − + E N T R
Label Description
+ or – Cycles through the available settings
ENTR Returns to the Test Function Setup menu
ESC Exits the function without saving changes
Note:
If AUTO RETURN is turned on, CYCLING is automatically turned off and the KEYS function is
automatically set to MAINTAINED mode. See following pages for details on the CYCLING and KEYS
functions.
4.3 Cycling (CYCLES)
This setting allows the user to configure the number of CW and CCW cycles through which the torque
plate will sequence. One cycle consists of the torque plate moving to a limit (torque set point,
angle/degree limit, or various event completions in the M7I,) whichever occurs first, at the specified
speed, stopping for the specified amount of dwell time, and returning to the other limit at the specified
speed.
Default setting: 00000 (off)
Available settings: 00000 – 99999
C Y C L E S : 0 0 0 0 0
E S C − + E N T R
Label Description
+
–
Press and hold
+ and –
simultaneousl
ENTR Returns to the Test Function Setup menu
ESC Exits the function without saving changes
Increases the number of cycles in increments of 1. Holding down +
will increment at an increasingly faster rate. If 99999 is reached
the next number will be 00000 and continue incrementin
Decreases the number of cycles in increments of 1. Holding down
– will decrement at an increasingly faster rate. If 00000 is reached
the next number will be 99999 and continue decrementin
If pressed and held for 2 seconds or longer the number of cycles
will change to 0.
.
.
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4.4 Dwell times (DWELL CW and DWELL CCW)
This setting corresponds to the amount of time, in seconds, for which the torque plate stops at the limit
during a cycle sequence. Individually set dwell times can be applied to the CW and CCW limits.
Note:
The dwell time settin
Default setting: 0 (no dwell time)
Available settings: 0 – 9999.9
C W D W EL L: 0 0 0 0 . 0
E S C − + E N T R
Label Description
+
–
ENTR Returns to the Test Function Setup menu
ESC Exits the function without saving changes
4.5 CW and CCW travel limits (CW L and CCW L)
This setting corresponds to the rotational travel distance the test stand moves before stopping or cycling.
CW and CCW limits are programmed individually. The programmed distances are relative to the zero
position of the test stand. The travel indicator can be zeroed by pressing and holding STOP for three
seconds.
Default settings: 1 revolution
Available settings: ±2,777.77 revolutions
Increases dwell time in increments of .1. Holding down + will increment at an
increasingly faster rate. If 9999.9 is reached the next number will be 0 and
continue incrementin
Decreases dwell time in increments of .1. Holding down – will decrement at
an increasingly faster rate. If 0 is reached the next number will be 9999.9
and continue decrementin
C W LM : 2 . 0 5
E S C − + E N T R
Label Description
+ Increments the travel limit setting. Holding down + will
increment at an increasin
– Decrements the travel limit. Holding down – will increment at
an increasin
ENTR Returns to the Test Function Setup menu
ESC Exits the function without saving changes
is unavailable for an auto return sequence.
.
.
fast rate.
fast rate.
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4.6 Overload analog output voltage (OVRLOAD V)
4.6.1 Function
The TSTM-DC protects a torque sensor from overload by measuring incoming analog voltage and
stopping test stand travel when the programmed percentage of full scale has been reached. The default
setting is for Mark-10 instruments (±1V full scale), however, the setting may be changed to ±2V or ±4V to
accommodate other instruments.
Default setting: ±1V
Available settings: ±1V, ±2V, ±4V, OFF
O V E R L O AD V : + / - 1
E S C − + E N T R
Label Description
+ or – C
±1V ±1V full scale
±2V ±2V full scale
±4V ±4V full scale
OFF Overload protection is disabled
ENTR Returns to the Test Function Setup menu
ESC Exits the function without saving changes
4.6.2 CW and CCW overload settings (CW OVERLOAD and CCW OVERLOAD)
This setting corresponds to the percentage of full scale at which torque plate rotational travel stops. For
example, a setting of 80% for a 100 lbFin capacity torque sensor would stop torque plate rotational travel
when approximately 80 lbFin is reached.
Note:
Overload protection is active onl
Default setting: 100%
Available settings: 20% - 100% (10% increments)
C W O V E R L D : 1 0 0
E S C − + E N T R
Label Description
+ or – Increases or decreases the value.
ENTR Returns to the Test Function Setup menu
ESC Exits the function without saving changes
4.7 Control source (CONTROL)
This setting corresponds to the source of test stand control, as follows:
CONSOLE
The test stand is controlled from the control panel.
PC
The test stand is controlled from a custom-written application (not MESURgauge Plus). Refer to
the Communications section for the complete serial command set. If any functions are changed
cles through the following available settings:
for torque applied in the same direction of travel.
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on the front panel, these settings will be ignored, except for Auto Return or Cycling. If either of
these functions is turned on, PC control will be turned off.
Default setting: CONSOLE
Available settings: CONSOLE, PC
C O N T R O L : C O N S O L E
E S C − + E N T R
Label Description
+ or – Cycles through the available settings
ENTR Returns to the Function Setup menu
ESC Exits the function without saving changes
4.8 Baud rate
This setting corresponds to the baud rate setting of the computer program controlling the test stand.
Default setting: 19200
Available settings: 1200, 2400, 4800, 9600, 19200, 38400, 57600, 115200
B A U D R A T E : 1 1 5 2 0 0
E S C − + E N T R
Label Description
+ or – Cycles through the available settings
ENTR Returns to the Function Setup menu
ESC Exits the function without saving changes
4.9 Stop bits and parity (STOP & PAR)
This corresponds to the stop bits and parity settings of the computer program controlling the stand.
Default setting: 8-1n
Available settings:
8-1E 8 stop bits, 1 stop bit, even parity
8-1o 8 stop bits, 1 stop bit, odd parity
8-1n 8 data bits, 1 stop bit, no parity
8-2n 8 data bits, 2 stop bits, no parity
7-1E 7 data bits, 1 stop bit, even parity
7-1o 7 data bits, 1 stop bit, odd parity
7-2E 7 data bits, 2 stop bits, even parity
7-2o 7 data bits, 2 stop bits, odd parity
7-2n 7 data bits, 2 stop bits, no parity
S T O P & P A R : 8 - 1 n
E S C − + E N T R
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Label Description
+ or – Increases or decreases the value
ENTR Returns to the Test Function Setup menu
ESC Exits the function without saving changes
4.10 Units of speed (UNITS)
This setting corresponds to units of speed and travel measurement.
Default setting: RPM
Available settings: RPM, °/sec
U N I T S : R P M
E S C − + E N T R
Label Description
+ or – Cycles through the available settings
ENTR Returns to the Test Function Setup menu
ESC Exits the function without saving changes
4.11 Programmable button function (KEYS)
Three button function modes are available:
1. Maintained
The torque plate will rotate continuously once the button has been pressed and held.
Subsequently pressing STOP will stop torque plate motion.
2. Momentary
The torque plate will rotate only if the button is held down. Releasing the button will stop
movement immediately.
3. Auto
Holding down the button for more than 0.5 second will enter momentary mode, at which time
an audible indicator will sound and the LED indicator on the button pushed will be illuminated.
A short tap on the button will operate the test stand in maintained mode. Pressing STOP
during maintained mode will stop torque plate rotation.
Default setting: maintained
Available settings: maintained, momentary, auto
K E Y S : M A I N T A I N E D
E S C − + E N T R
Label Description
+ or – Cycles through the available settings
ENTR Returns to the Test Function Setup menu
ESC Exits the function without saving changes
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4.12 Default settings
Revert to factory settings, as follows:
CW SPEED: 10 RPM
CCW SPEED: 10 RPM
AUTO RETURN: off
CYCLING: 00000 (off)
CW LM: 1.00 revolution
CCW LM: -1.00 revolution
OVERLOAD V: +/- 1
CW OVERLOAD: 100%
CCW OVERLOAD: 100%
CONTROL: CONSOLE
BAUD RATE: 19200
STOP BITS & PARITY: 8-1n
UNIT: RPM
KEYS: maintained
PASSWORD: 0000 (off)
D E F A U L T ? : N O
E S C − + E N T R
Label Description
+ or – Cycles through “yes” or “no” selections
ENTR Returns to the Test Function Setup menu
ESC Exits the function without saving changes
4.13 Password (NEW PWORD)
If desired, a password can be set to prevent unwanted changes to test functions. The password can be
set to any number between 0000 and 9999. The default setting of 0000 indicates that the password is
disabled, and that the user can freely enter the Test Function Setup menu.
Default setting: 0000 (off)
Available settings: 0000 – 9999
N E W P WO R D 0 0 0 0
E S C − + E N T R
Label Description
+ or – Increases or decreases the value.
ENTR Returns to the Test Function Setup menu
ESC Exits the function without saving changes
If the password is misplaced or forgotten, an activation code is required. While in Operating
Mode, press and hold STOP, then press menu simultaneously, and release both buttons. Scroll
to the right until “DISABLE PASSWORD” is displayed. Press ENTR to generate a request code,
then provide it to Mark-10, who will supply a corresponding activation code. The process for
entering the activation code is as follows:
1. The first digit of the request code will be flashing. Press + to increment the digit.
Pressing + when the number 9 is displayed will cycle to 0.
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2. Press –> to advance to subsequent digits, and change them in the same manner.
3. Press ENTR when complete. If an incorrect code is entered, the display will revert to the
password reset menu. If this happens the above process must be repeated.
5 OPERATING MODES
5.1 Overview
The TSTM-DC can be operated in several modes, including combinations of these modes:
1. Basic Mode
Manual control of test stand movement.
2. Auto Return Mode
Test stand moves to a limit switch, torque set point, or rotational travel distance, whichever
occurs first, then reverses and moves at maximum speed to the other limit, whichever occurs
first.
3. Cycling Mode
Test stand cycles between limits at the selected speed, and pauses at each limit for a
selected period of time.
4. PC Mode
Test stand is controlled through a serial connection with a computer.
The Operating Mode screen appears as follows:
POSITION
1 . 2 7 0 . 0 0
me n u m i n ma x S E T
The item selected will be capitalized, as shown in the figure above. The set speed can be changed in
Test Function Setup. Independent speeds may be programmed for each direction.
5.2 Menu navigation
At power-up, the display will show the operation screen for whichever mode was used last. The display
will appear as one of the following:
1. Basic & Auto Return Modes:
POSITION
1 . 2 7 0 . 0 0
me n u m i n ma x S E T
SPEED
SPEED
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2. Cycling Mode:
1 . 2 7 0 0 0 2 4
5.3 Basic mode
The test stand rotates clockwise when CW is pressed, and counter clockwise when CCW is pressed.
When the test stand is in motion, an LED indicator on the button pushed will be illuminated. The KEYS
setting controls how test stand movement responds to the push of either of the directional buttons. The
three settings are:
1. Maintained (default)
2. Momentary
3. Auto
Pressing EMERGENCY STOP will immediately stop rotation in any mode. To release, twist the button
clockwise until it assumes its original position. To resume the test, press either directional button for two
seconds.
e n u mi n ma x S E T
3. PC Control Mode
Appears the same as in Basic and Auto Return modes.
Label Description
menu Enters Test Function Setup
min Sets speed to minimum speed. Will not appear when a
password has been set.
max Sets speed to maximum speed. Will not appear when a
password has been set.
set Sets speed to the programmed value.
Pressing menu will enter Test Function Setup. If a password has been programmed, the display
will prompt the following:
P A S S WO R D 0 0 0 0
E S C − + E N T R
The password is a four-digit number. Press + or – to increment or decrement the number. Once
the complete password has been entered, press ENTR. If correct, the display will enter the Test
Function Setup menu. If the password is incorrect, the display flashes “INCORRECT
PASSWORD”, and then reverts to Operating Mode.
The torque plate will rotate continuously once the button has been pressed.
Subsequently pressing STOP will stop test stand motion.
The torque plate will rotate only if the button is pressed and held. Releasing the button
will stop rotation immediately.
Holding down the button for more than 0.5 seconds will enter Momentary mode, at which
time an audible indicator will sound and the LED indicator on the button pushed will be
illuminated. A short tap on the button will operate the test stand in Maintained mode.
Pressing STOP during Maintained mode will stop rotation. To resume the test, press CW
or CCW again.
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The torque plate will rotate until a limit has been reached. If the test stand has stopped at a soft limit, the
limit condition may be overridden by pressing and holding either directional button for two seconds.
5.3.1 Travel indication
The position is displayed in the upper left corner of the display. The unit of measurement is dictated by
the UNITS function. To zero the value, press and hold the STOP key. The position will not be retained
during power cycles.
5.3.2 Overload protection
The available interface cable is required for overload protection of a Mark-10 torque sensor. If overload
protection is enabled, the test stand will stop when the programmed percentage of full scale of the
instrument has been reached.
When overload protection is enabled, if the cable is disconnected, and/or if the instrument is powered off,
an error message will appear. Plug in the cable and/or turn on the instrument to clear the message.
Note:
When the torque plate is rotating in the clockwise direction, only the clockwise overload setting is
active. When rotating in the counter-clockwise direction, only the counter-clockwise overload setting is
active.
5.4 Auto return mode
In this mode the torque plate rotates at the set speed to whichever limit it encounters first and stops.
Then, it returns at maximum speed to the opposite limit, whichever occurs first, and stops. Press either
directional button to initiate an Auto Return sequence.
The test stand can be stopped at any time during an Auto Return sequence by pressing STOP. To
resume the test, press either directional button.
Note:
If the test stand has stopped at a soft limit, the limit condition may be overridden by pressing and
holdin
5.5 Cycling mode
This mode cycles the torque plate between limits, whichever occurs first. One cycle consists of the
following steps:
A cycling sequence can be initiated from any position and can start in either direction. To initiate a cycle
sequence, press either directional button. During a cycle sequence, a counter will be displayed, indicating
the number of cycles remaining, as shown below:
either directional button for two seconds.
1. Torque plate rotates to a limit at the specified speed.
2. Torque plate stops for the specified amount of dwell time.
3. Torque plate reverses direction, returns to the other limit at the specified speed, and stops for
the specified amount of dwell time.
1 . 2 7 0 0 0 2 4
As in Basic Mode, the min, max, and set soft keys are active during test stand movement.
When the cycling sequence and the test stand has stopped at a soft limit, the limit condition may be
overridden by pressing and holding either directional button.
e n u mi n ma x S E T
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5.5.1 Dwell time
Dwell time is the amount of time, in seconds, for which the torque plate stops at a limit during a cycle
sequence. When the limit is reached, a counter will be displayed, shown as follows:
1 . 2 7 0 0 0 1 . 5
me n u m i n ma x S E T
If the dwell settings are set to 0, the torque plate will immediately reverse direction upon reaching the
corresponding limit, and no counter will be displayed.
The cycle sequence may be interrupted before it has been completed by pressing STOP. A soft key
labeled RESET will appear as follows:
1 . 2 7 0 0 0 2 4
R E S E T
1. Cancel the cycle sequence:
Press RESET to stop and reset the cycle sequence. The cycle counter will revert to the
number of cycles originally programmed.
2. Resume the cycle sequence:
Press either directional button to resume.
Once the sequence has been completed, the screen will revert to the number of cycles programmed
originally. To begin another cycle test, press either directional button.
At this point, there are two options:
6 COMMUNICATION
6.1 Setup
The TSTM-DC can transmit torque and rotational travel data to a PC. The following settings are required
for proper functioning of all test stand functions and data output:
Torque sensor with indicator (M5I or M7I):
- RS-232 communication
- 9600 baud rate
- Auto Output: Disabled
TSTM-DC test stand menu:
- CONTROL: CONSOLE
- STOP & PAR (stop bits and parity): 8-1n (8 data bits, one stop bit, no parity)
Connection cables:
- Torque sensor / indicator to test stand: Part no. 09-1162
- Test stand to PC (RS232): Part no. 09-1056
- Test stand to PC (USB): Part no. 09-1056 and RSU100
If not using Mark-10 data collection software, ensure that the software’s communication settings match.
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6.2 PC control mode
Motion control and data collection functions may be sent by an external device via user-developed
applications. A list of supported ASCII commands is provided below. All commands must be lowercase.
Command Description Example
a Request speed
b Set travel unit to revolutions
c Enter cycle mode
d Move crosshead CCW
Set speed
RPM format: eXXX.XX
e
f Set cycles. Format: fXXX
g
h
i Set travel unit to degrees
Set test stand speed to maximum speed
k Set test stand speed to minimum speed
l Enter travel limit mode1
m Enter manual mode
n Transmit travel and force readings
o Set test stand speed to programmed speed
p Request stand status2
q Request number of cycles completed
r Request number of cycles se
s Stop test stand motion
t Reset cycle counter to zero
u Move test stand CW
v Request CW travel limit
w Request CCW travel limit
x Request rotational travel value
z Reset rotational travel position to zero
Notes:
1. If travel limit mode is disabled, torque and rotational distance limits are ignored.
2. The transmission of ASCII “p” will return the stand status. The following are the return codes and
Three leadin
Deg/Sec format: eXXX.XX
Three leadin
Set CCW travel limit
Revolutions format: g-XXXX.XX
Negative sign (if applicable), four leading zeroes, and two
decimal places required.
Degrees format: g-XXXXXX.X
Negative sign (if applicable), six leading zeroes, and one
decimal place required.
Set CW travel limit
Revolutions format: h-XXXX.XX
Negative sign (if applicable), four leading zeroes, and two
decimal places required.
Degrees format: h-XXXXXX.X
Negative sign (if applicable), six leading zeroes, and one
decimal place required.
their definitions (upper case):
zeroes and two decimal places required.
zeroes and two decimal place required.
leading zeroes required
e002.85 = 2.85 RPM
e154.20 = 154.2 Deg/Sec
f0500 = 500 cycles
g-0010.55 = -10.55 Turns
g0001.25 = 1.25 Turns
g-000007.5 = -7.5 Deg
g000010.7 = 10.7 Deg
h-0010.55 = -10.55 Turns
h0001.25 = 1.25 Turns
h-000007.5 = -7.5 Deg
h000010.7 = 10.7 Deg
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Command Description
CW Test stand movin
Test Stand status
Operating mode
Limit switch status
While in PC control, if any functions are changed on the control panel, these settings will be ignored,
except if Auto Return or Cycling are turned on. If so, PC control will be turned off automatically.
CCW Test stand moving CCW
S Test stand stopped
C C
L Limit mode
M Manual mode
CWL Test stand at CW limi
CCWL Test stand at CCW limit
cle mode
CW
7 MAINTENANCE AND SERVICE
The TSTM-DC should be operated in a dry and clean area. Under these circumstances only a few
periodic maintenance operations are required:
7.1 Check for loosened grips and attachments – daily
Check to ensure that the grips attached to the torque sensor and torque plate are firmly secured.
Looseness could result in a potentially hazardous situation.
7.2 Check for loosened components – once per month
1. Remove the test sample from the test stand.
2. Attempt to loosen subcomponents of the test stand (ex. fasteners, brackets, etc). All components
should be firmly attached. If any looseness is detected, stop using the test stand and contact
Mark-10 or a distributor for instructions.
8 TROUBLESHOOTING
1. The control panel displays several error messages, as follows:
Error Messa
CHECK GAUGE
GAUGE COMM ERROR
GAUGE OVERLOAD
To clear any of the above errors, press STOP.
2. The test stand will rotate only in one direction, or not at all.
Possible causes:
e Description
The torque sensor/indicator is either (1) powered off, (2) not in its
operating mode (i.e. in a menu), or (3) not connected to the stand.
This message appears only if overload protection is turned on and
one of the above conditions is present.
The test stand is attempting to rotate, but it cannot establish
communication with the torque sensor/indicator. The communication
settings in the indicator are not correct or the indicator is not in its
normal operatin
The programmed overload percentage of the
sensor/indicator’s full scale has been reached. Immediately reduce
the torque or ad
mode.
ust the overload settings.
torque
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1. Ensure all cables are plugged in properly, as described in Setup and Safety section.
2. Ensure that the torque value has not exceeded the overload limits configured in the stand.
3. Ensure that instrument’s set points have been configured properly. Both set points must be
enabled, regardless of test direction, with upper limit in the CCW direction, and lower limit in
the CW direction. Refer to the indicator’s user’s guide for further instructions on configuring
set points.
9 SPECIFICATIONS
Torque capacity:
Speed range:
Speed variation with load: ±0% (Stepper motor driven
Speed accuracy: ±0.2% of settin
Rotational travel accuracy: ±0.7° / 0.02 rev.
Rotational travel repeatability: 0.1° / 0.01 rev.
Rotational travel resolution: 0.1° / 0.01 rev.
Maximum slider travel: 15.5" [394 mm]**
Slider travel rate: 1.047" [26.6 mm] / lever revolution
Maximum angular travel: No limit
Manual adjustment: 12º/knob rev
Angle dial resolution: 2º
Maximum slider travel: 15.50” [394 mm]
Slider travel rate: 1.05” [26.6 mm] / lever revolution
Power: Universal input 80-240 VAC, 50/60 Hz, 60W
Fuse type: 1.2 A, 250V, 3AG SLO BLO
Weight:
Environmental conditions: 40 - 100°F [5 - 40°C], max. 93% humidity, non-condensing
TSTM-DC: 100 lbFin [11.5 Nm]
TSTM-DC-1
TSTM-DC: 0.01 - 15 RPM [0.05 - 90°/s]
TSTM-DC-2
Vertical models: 35.5 lb [16.1 kg],
Horizontal models: 29.5 lb [13.4 kg]
Control panel: 2.7 lb [1.2 k
SP-2496 upgrade: 200 lbFin [22 Nm]*
SP-2624 upgrade: 0.04 - 60 RPM [0.2 - 360°/s]*
]
* Maximum torque decreases proportionately with speed. Examples:
- Maximum torque at 60 RPM = 25 lbFin [2.8 Nm]
- Maximum torque at 30 RPM = 50 lbFin [5.6 Nm]
**A column extension will also extend the slider travel
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10 DIMENSIONS in [mm]
TSTM-DC
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Series TSTM-DC Test Stands User’s Guide
TSTMH-DC
CONTROL PANEL
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