MP85 with Setup Assistant

Quick start guide
The first steps
MP85 with Setup
Assistant
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Contents
Page
Safety instructions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4
1
Connecting the MP85 module to a PC with USB interface . . . . . . .
5
2
Connecting the sensors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6
3
Installing the PME Setup Assistant . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8
4
Preparing a measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9
5
Connecting and setting up sensors on the MP85 . . . . . . . . . . . . . . . 10
6
Specifying the evaluation criteria . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
7
Measuring and displaying (continuous production) . . . . . . . . . . . . . 16
8
Results of the last measurement . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
9
Displaying saved processes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
10 Further help and support . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
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Safety information
Observe the safety information described in the MP85 operating
instructions.
These summarized operating instructions will enable you to rapidly and easily
produce measurement results with the MP85/MP85DP.
The MP85/MP85DP is configured using the setup software ”PME Assistant”,
which is supplied on CD-ROM (PME system CD) with the device or is
available as freeware under:
http://www.hbm.de > Support > Download > Software
Further, more detailed information is available in the:
- Online help of the PME Assistant
- Operating instructions for the dual channel measuring amplifier module
MP85
- Interface description for MP85 / MP85 DP with CAN and Profibus
description
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1
Connecting the MP85 module to a PC with USB
interface
The MP85/MP85DP module is supplied with an external direct voltage of
18..30 VDC.
• Connect external direct voltage to terminal 1 or 2
• Connect the PC or laptop via the CAN Bus to Terminal 1
The simplest way is to use the HBM adapter CAN-USB dongle
(Order No. 1-PMESETUP-USB).
• Connect the dongle directly to terminal 2 and connect the USB plug at the
other end directly into the USB port on the PC
The adapter will be detected by the operating system (Plug & Play) and a
prompt for the installation of the appropriate drive will appear
(PCAN_USB.sys).
Connecting the power
supply:
WARNING
The MP85/MP85DP module must be connected to an
external supply voltage of 18-30V (24Vnom).
D Attach the wire end sleeves to the power supply wire ends.
D Screw the wire ends to the screw terminal 1.
D Insert the screw terminal into the top socket.
D Switch the power supply on.
Screw terminal 2
Labelling
(CAN adapter; assignment as
with screw terminal 1)
Screw terminal 1
Screw terminal 3
(Power supply CAN Bus,
Synchronization)
(Control inputs/outputs)
Out 1
Out 2
Out 3
Out 4
0V
24 V
IN 1
IN
1
2
OUT
3
4
0V
24V
1
IN
Screw terminal 4 (MP85 only)
(Control inputs/outputs)
Screw terminal 5
(Sensor channel x)
Screw terminal 6
(Sensor channel y)
IN = digital input
CAN
0V
24V
SYNC
L H
OUT = digital output
Out 5
Out 6
Out 7
Out 8
IN 2
IN 3
IN 4
IN 5
5
6
OUT
7
8
2
3
IN
4
5
TIP:
The driver is located on the accompanying PME system CD (directory:
CAN_Driver > PCAN_USB
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When using several modules, these can be connected using a ribbon cable
on the device’s top side, which also provides the power supply and the bus
connection of the modules.
When doing so, the first and last devices must have the terminating resistor
(120 Ohm) activated with the toggle switch S2.
CAN low
CAN high
CAN connection (like
screw terminal 1)
First device in
the bus cable
Connect the terminating
resistor here (toggle
switch)
Last device in
the bus cable
Do not connect the
terminating resistor
S2
S2
Connect the
terminating resistor
here (toggle switch)
ON OFF
2
Connecting the sensors
2 sensors (transducers) can be independently connected to screw terminals 5
and 6 (e.g. channel 1 displacement and channel 2 force).
HBM transducer cables or other shielded, low capacitance measurement
cables should be used. The shield of the transducer cable must be connected
as closely as possible (< 5 cm) to the flat plug (4.8 mm).
MP85
MP85DP
Screw terminals 5 and 6
for transducer connection
SENSOR X
1
8
SENSOR Y
1
8
Flat plug for the transducer cable shield
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SG and inductive full bridges,
piezoresistive transducers
wh
bk
rd
bu
gn
gr
ye
SG and inductive half bridges
Measurement signal (+)
Bridge excitation
voltage (-)
Measurement signal (-)
Bridge excitation
voltage (+)
Sensor circuit (+)
1
Sensor circuit (-)
3
Cable shield
wh
bk
2
6
bu
4
gn
5
gr
Hsg.
Measurement
signal (+)
Bridge excitation
voltage (-)
Bridge excitation
voltage (+)
1
Cable shield
3
1
2
Bridge excitation
voltage (+)
Sensor circuit (+)
5
Sensor circuit (-)
3
Cable shield
4
Hsg.
LVDT-transducer
Potentiometric transducer
(half bridge function)
2
ye
Measurement
signal (+)
Bridge excitation
voltage (-)
1
2
4
Hsg.
Measurement
signal (+)
Bridge excitation
voltage (-)
Bridge excitation
voltage (+)
Measurement
signal (-)
Cable shield
Hsg.
1
2
4
6
Sensor circuit (+)
5
Sensor circuit (+)
5
Sensor circuit (-)
3
Sensor circuit (-)
3
Cable wire colors:
wh= white; bk= black; bu= blue; rd= red; ge = yellow; gn= green; gr= gray
To connect other sensors, refer to the Online help or the operating instructions.
Important
When connecting transducers in 4-wire circuits, the sensor lines
must be bridged with the appropriate bridge excitation voltage (Pin
3 with Pin 2 and Pin 5 with Pin 4).
4-wire connection: Full bridge
wh
bk
rd
bu
1
2
4-wire connection: Half bridge
wh
2
6
4
5
6
bu
Hsg.
4
gn
gr
3
ye
1
bk
ye
5
3
Hsg.
Feedback bridges for 4-wire technology
Cable wire colors:
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wh= white; bk= black; bu= blue; rd= red; ge = yellow; gn= green; gr= gray
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3
Installing the PME Setup Assistant
• Insert the CD into the drive
Installation starts automatically or can be called up from the ”Setup.exe” file.
Alternatively, the current Assistant can be downloaded from the website
http://www.hbm.de > Support > Download > Software.
Following installation, the Windows Start menu
creates an icon with which the Assistant
can be started.
The Assistant initially displays the Setup window where the MP85 / MP85DP
connection settings must be specified.
When using the CAN-USB adapter, the parameters ”CAN” and ”PCAN-USB”
must be selected:
Step 1
Step 2
Step 3
The CAN baud rate must be the
same as the connected MP85
module (delivery condition is 1000
kBaud).
Step 4
A list of all modules connected to the
CANBus is displayed when the Scan
button is pressed.
The Scan function takes a few
seconds to complete.
Step 6
The Setup button opens the PME
Assistant interface.
Step 5
All modules located can be
displayed and the required module
selected by mouse click.
TIP:
Further information can be found by clicking the Help button (Online help).
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4
Preparing a measurement
The two-line front display of the MP85/85DP shows the measurement value
and another line with status information when switched on.
If the device detects an error, this will also be shown on the display (for a
description, refer to the MP85 operating instructions, Chapter 7, Error
descriptions).
Further device configuration is implemented with the ”PME Assistant”.
The individual masks are called up by clicking on the folder in the tree
structure.
Close the windows by clicking on the corresponding button at the top right of
the windows, just like in Windows .
The settings made in that window will then be taken over!
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Connecting and setting up sensors on the MP85
The relevant transducer values must be entered in the Assistant before
measurements can be made.
These include:
1. Transducer type
2. Transducer characteristic curve (2 points). Subsequently, a
3. zero adjustment must be implemented.
Finished
1st step
2nd step
3rd step
In this example, a displacement transducer is connected to channel x and a
force transducer to channel y.
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Step 1 (mask: Transducer):
The displacement transducer works as a half bridge with an 80 mV/V
measurement range (the next highest with 100 mV/V was selected).
The force transducer works as a full bridge with a 2 mV/V measurement
range (the next highest with 4 mV/V was selected).
It is helpful to set the units at the same time (here: mm and kN).
Step 2 (mask: Enter characteristic):
2 methods are available:
- Enter characteristic curve using data sheet data
- Alternatively: Calibrate characteristic curve with specification of two points
per sensor
Simplest way:
Enter values for zero point and end value from the sensor data sheet in the
”Enter characteristic” mask.
(e.g. zero point:
0 mV/V equivalent to 0 kN
Span: 2 mV/V equivalent to 10 kN)
Alternatively: (Mask: Measure characteristic) – with two points per sensor
To keep measurement deviations (error) as small as possible, the points used
should lie at the limits of the subsequently used range.
Method:
1. Approach first point of characteristic curve, e.g. move displacement
transducer to starting position, with load (and zero point as selected point)
release transducer.
2. Enter corresponding physical value in Point 1, e.g. 0 mm.
3. Click on “Point 1 measure” . The value measured by the MP85 appears
electronically under Point 1.
4. Move to Point 2 of the characteristic curve, e.g. set path using gauge block
Set load values with weights or with reference transducer, etc.
5. Enter physical value of set parameter in Point 2, e.g. 40kN or 60 mm.
6. Click on “Point 2 measure”. The value measured by the MP85 appears
electronically under Point 2.
Same method applies to the second sensor.
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Step 3 (zero adjustment mask: signal conditioning):
The sensors are now connected and the system is in the starting position.
A zero adjustment must now be implemented for each sensor using the ”Zero
balance” button.
This optimally matches sensors and amplifier to each other.
TIP:
To save all settings protected against power failure, they should now be saved
in the mask:
Save/load parameters
in the MP85-internal memory (Memory: Save to Flash) and on the PC
(Memory: Save to PC)!
Further information is available by clicking on the Help button (Online help)
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6
Specifying the evaluation criteria
This menu (Evaluation criteria) is used to specify the criteria to evaluate the
later procedures as correct (OK) or incorrect (NOK).
This is implemented by means of a curve trace, e.g. force-displacement
during a press-fit process, travelling through various windows (tolerance
windows).
If the trace misses these windows or leaves the windows at the wrong place,
the press-fit process is evaluated as incorrect (NOK) and displayed.
The Evaluation criteria menu allows measurements to be started and
stopped manually, i.e. by mouse click. The process curves determined in this
way are used for suitable positioning of the tolerance windows.
The positioning of the individual windows is also implemented by mouse click.
Once the windows are created, they can be moved around with the Drag and
Drop function or their size changed. A maximum of 9 tolerance windows are
available.
Alternatively, the evaluation can be implemented with a single large tolerance
window, a so-called tolerance band (see Online help).
Graph-Curve history
2nd step
3rd step
1st step
5th step
4st step
Status line
In this example, 3 windows are positioned at the characteristic points of the
press-fit process.
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Step 1:
Call up the ”Configure evaluation parameters” menu.
Step 2:
Use the
button to start a measurement ”manually”, run the process through
button.
and then stop again manually using the
If necessary, repeat this process several times to obtain an accurate curve
family. To do this, click on the “Curve history mode” item in the “Grap” menu
first.
Step 3:
Use the left mouse button to move the windows to the decisive positions for
the process.
(In this case: Window 1 for the thread-in process, window 2 for the fitting
process and window 3 as the final window to display the block force).
Important
All tolerance windows must lie within the green marked range
window. The blue alarm window must be at least as big as the
range window – the size can be changed with the mouse.
Step 4:
To set up further evaluation criteria for the tolerance windows, click on the
required window which will then appear in blue.
Click again on the
evaluation button to open another window where,
e.g. entry and exit sides can be selected.
Step 5 (control settings:
Essential setting here:
How will the measurement procedure be ended later in the
process?
This is important as the default setting means that the evaluation with the
OK/NOK decision is only implemented after the measurement is completed!
A suitable setting for a force-displacement measurement is ”Exceeding the
channel x setpoint (displacement)” and a small lag time period (e.g. 1.5
seconds).
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If the stop signal must come from an external controller, the stop condition
”External stop” should be selected. The ”Start/Stop process” function can be
assigned to a digital input. This must be set in the menu ”Digital inputs”.
Status bar:
Information about the measurement process will be displayed here as in the
measurement operation:
- Measurement status (e.g. running or finished)
- Reasons for alarm (e.g. values outside the window)
- Reason for end of measurement (e.g. external stop)
TIP:
To save all settings protected against power failure, they should be saved in
the mask: Save/load parameters in the MP85 internal memory (Flash) and on
the PC!
The memory directory can be selected in:
File > Specify memory directory
Further information is available by clicking on the Help button (Online help)
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Measure and visualize (continuous production)
The graphic display of the test procedure during continuous operation with all
tolerance windows is implemented in the ”Measurement curve” mask.
By default, the last measurement curve is always shown. The ”Curve history
mode” can also be switched on here in the ”Graph” menu.
Measurement curve
Status line
Results of last measurement
This mask also has a status bar at the bottom end. It shows:
- The progress of the measurement, then after the evaluation the OK or NOK
decision
- Reasons for an alarm
- Reasons for the end of the measurement
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Results of the last measurement
The evaluation of the last process can be shown in tabular format with all
important information (mask: Results of last measurement).
IO
IO
IO
IO
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Displaying saved processes
(Mask: Data storage)
To ensure optimal traceability of the manufacturing process, the curves,
results and statistical evaluations of all measured processes can be saved
and displayed on the screen (does not occur automatically with the function
Save parameters).
Therefore the storage procedure must first be setup in the ”Data storage”
mask.
TIP:
The memory directory can be selected in:
File > Specify memory directory
The saved data can then be displayed by the PME Assistant or imported into
other programs (e.g. Excel).
1st step
2nd step
3rd step
4st step
Important
The more data and curves are saved, the longer this procedure
will take until the evaluation is ready again. This must be taken
into account in the production process cycle time.
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Step 1 (storage target):
To save data to the PC, the storage target: ”External via CAN” must be
selected.
Step 2 (results):
Specify here which results should be saved (OK, NOK, all, none).
Step 3 (curves):
Specify here which curves should be saved (OK, NOK, all, none).
Step 4 (statistical data):
If necessary, the statistical data storage function can be activated here. If,
subsequently, the evaluation criteria are changed, the statistics should be
deleted (Memory: Evaluation Criteria > Configure evaluation criteria >
process > Reset process counter) otherwise faulty interpretations may
occur.
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Calling up saved data:
(Mask: Retrieve saved data)
Once the mask is opened, previously saved measurement curves and
evaluation results (process data) can be loaded and displayed in the empty
chart.
1st step
2nd step
Click
Process data
Curves
Process data
Step 1:
Click on the Process data button to open an Explorer window where the
required process and result data can be selected:
- these files always end in .R85 (Result file)
Step 2:
Click on the Curve button to open an Explorer window where the required
curves can be selected:
- OK curves file, end with .C85
- NOK curves file, end with .D85
Zoom function:
For a more detailed look, left-click to open a Zoom
window.
The original display (Un-Zoom) can be restored using the key combination
CTRL + Z.
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Further help and support
The Online help offers comprehensive advice for every item and helpful tips
and tricks.
If problems occur when working with this program, you can use the following
services:
E-mail support:
support@HBM.com
Telephone support:
Telephone support is available during normal working days at the usual office
hours (CET):
06151 803 666 (Germany)
+49 6151 803 666 (International)
Fax support:
06151 803 9666 (Germany)
+49 6151 803 9666 (International)
HBM on the Internet: (The world of manufacturing monitoring)
http://www.hbm.com/Production
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Subject to change without notice.
All specifications refer to our products in general terms. They do
not constitute a warranty of quality and do not establish liability.
Hottinger Baldwin Messtechnik GmbH
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PO Box 10 01 51, D-64201 Darmstadt, Germany
Im Tiefen See 45, D-64293 Darmstadt, Germany
Tel.: +49 6151 803-0; Fax: +49 6151 803 9100
E-mail: support@hbm.com www.hbm.com