MP85 / MP85DP

Data sheet
MP85 / MP85DP
Special
features
- 100% quality control of the
production process
- Universal twin-channel amplifier
for many of the usual market
sensors
- Powerful algorithms for
monitoring fitting, testing and
press-fitting processes
- Memory function for results,
curves and device settings
- Convenient integration into the
automation system by means of
standardized fieldbus interfaces
- Compact industrial design
MP85
MP85DP
Carrier-frequency excitation
voltage 4.8 kHz
Power supply
electrically isolated
24 V
Supply for active transducers
5 V or 24 V
A
µP
D
Intelligent signal conditioning and
powerful algorithms for monitoring
fitting
A
D
"10 V
SSI
transducer
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Keyboard and
display
MP85 / MP85DP
MMC memory
card
Control inputs
and control
outputs
CANopen
interface
Profibus DP
interface
(for MP85DP)
Description
Integrated quality assurance
With the MP85, quality assurance can be integrated into the production process. Operational reliability, economic
efficiency and product liability are of paramount importance. Permanent monitoring is indispensable, especially
when quality assurance is only possible during the actual manufacturing process.
Typical examples include:
• press-fitting:
• fitting
• riveting
• flanging and roller-burnishing
Solutions for mounting processes
The MP85(DP) monitors two measured quantities, such as force and displacement or time. Production and
machine status can be monitored using the mounting characteristic curve by means of freely adjustable evaluation
criteria. This allows the operator to control the quality and the output of production.
Monitoring is either continuous by means of a tolerance band or by max. 9 freely definable tolerance windows. The
system monitors:
• thread-in force
• block force
• end position
• the full force vs displacement curve
Performance features and advantages:
• Easy configuration and commissioning with free parameterization and visualization software (PME Assistant)
• Precise process analysis to meet requirements
• Flexible system for monitoring different workpieces, 31 different device settings and 31 different
workpieces/processes
• Storage of results, curves and statistics, as well as the device settings in the device itself or on an external PC
• Continuous traceability thanks to integrated process control and the statistics functions of the stored processes
• Integration via digital inputs/outputs or integrated fieldbus interfaces to primary control systems
• Flexible application, tailored to use at manual workstations
• Expansion of existing machines, easy to install
Possible press-fit situations
no part available
loose fitted
wrong part
not fitted
fitted too deep
Monitoring riveting processes
Monitoring flanging processes
Classification of
force
HBM
and
2
displacement
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Process analysis with tolerance windows
Force measuring range
The following windows are used for evaluation:
1 alarm window
Limits at which an alarm is triggered. This window is used to protect the machine.
1 range window
Defines the range in which measured values are stored, within which all the
other tolerance windows are positioned.
1...9 tolerance windows for analyzing the fitting process. In the case of tolerance windows, there is a free choice of
incoming and outgoing sides; the windows can be evaluated in real time.
Mean value windows are also possible.
Displacement measuring range
Systems of coordinates:
Tolerance window coordinates can be defined absolutely or relatively (dynamically). Use the relative system of
coordinates if the absolute position of the fitting pieces (e.g. bearing/shaft) is not always the same. It is possible to
mix these two windows.
Analysis with windows
With relative x coordinates, all that is measured is the relative movement as from the start or end position, relative
to the x axis of the two fitting pieces.
F (force)
End force
End position
Target value y
(defines the
start position)
0
10 20
0
Absolute, displacement transducer (mm)
20
relative to the start position
relative to the end position
-30
0
Example: Pressing a bearing onto a shaft
40 mm
Start position
20
Relative
displacement
40
Absolute
displacement
coordinates
60
Start position Target value x
-40
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3
0
Relative
displacement
coordinates
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Analyzing the courses of curves with relative force windows
The curves below could arise, for example, when testing a steering column locking lever. With ”clamping
processes” of this type, it is important that the force increases evenly, reaches a maximum value (which is within a
defined tolerance window) and then drops again (engaged position). To analyze this process, define tolerance
windows 3 and 4 relative to Fmax or Fmin of tolerance window 2. The same curve run will then always be analyzed.
Tolerance window 2
F
A
B
A
Tolerance window 3
NOK
B
A, B : relative reference to
Fmax of tolerance
window 2
OK
Tolerance window 4
s
Process analysis with a tolerance band
When evaluating with a tolerance band, the full course of the curve is monitored continuously. It only takes one
measured value outside the tolerance band for the test operation to be rated NOK.
Force measuring range
With this evaluation, one or more reference curves first have to be measured and then the tolerance band of max.
64 support points is adapted to it/them. This automatically generated tolerance band can be adapted manually later
on.
Displacement measuring range
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4
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Start and stop conditions
The start and stop conditions are used to synchronize measurement control to the production process.
Start and stop conditions are available for a wide variety of applications, such as:
• external start and stop signal
• target value y and overshoot time
• target value x and overshoot time
• standstill recognition
The following examples describe each method individually.
External stop signal
With this method, the end position is signaled by an external transducer (such as a proximity switch).
Example:
The required position is signaled by
the proximity switch.
F
Proximity switch
s
External stop
Target value x
Target value y and overshoot time
This method should be used when the end position is defined by a mechanical limit. The end position is detected
when prescribed target value y is exceeded (e.g. block force).
Example:
Press-fitting a bearing at
block position
ÎÎÎÎÎ
ÎÎÎÎÎ
ÎÎÎÎÎ
ÎÎÎÎÎ
Overshoot (displacement within the oversho
F
Target
value y
(FBlock)
s
End position
Target value x and overshoot time
With this method, the x channel signals that the end position has been reached.
F
Example:
Press-fitting a bearing with
displacement monitoring
Overshoo
t
Displacement transducer
Target value x s-target
Target value
x
s
Standstill recognition
This method is used if the process is to be stopped as soon as there is no longer any change in the x channel.
Example:
The bearing should be press-fitted up
to the end position.
ÎÎÎÎÎ
ÎÎÎÎÎ
ÎÎÎÎÎ
ÎÎÎÎÎ
End position
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5
F
Standstill
s
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Parameter set and window dependent statistics function
Statistics graphics can be called to clearly display
the OK and NOK processes.
Global statistics with a process counter are
grouped by parameter sets.
The tolerance window result can be read at a
glance for each parameter set.
This allows
- tool wear
- component tolerances or
- damage to a machine
to be detected early.
The graphic windows in Counting can be used to
analyze the distribution of the OK and NOK
processes individually for each window.
Counting automatically calculates the distribution
of the minima and maxima with accompanying
standard deviation.
Data management
With the MP85 (DP), it is possible to store results,
curves, statistics and the device settings. This
allows processes to be analyzed later on and
ensures 100% traceability.
You can choose whether to store the data on your
PC or on the multimedia card in the PME device.
In both cases, curves and/or results can be stored
in ASCII or Qdas format:
-
NOK processes only or
-
OK processes only or
-
all processes
The data can also simply be exported and
evaluated in EXCEL.
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Specifications
Type
Accuracy class
Supply voltage
Permissible supply voltage range
Power consumption
MP85, typically
MP85DP, typically
MP85 / MP85DP, max.
V
MP85 / MP85 DP
0.1
24; potential separation from the measuring system (typically
500 VDC)
18...30
W
W
W
7
9
10
VDC
Behavior in the event of a supply voltage failure
automatic data retention after power failure
Typical backup battery life (CR2032) for the realtime clock
years
5
Modes of operation, independently adjustable for both channels
Carrier-frequency amplifier
Carrier frequency
kHz
4.8 "1 %
Excitation voltage
Veff
2.5 "5 %
Connectable transducers
SGs, half and full bridges
Ω
170 ... 2000
mH
Inductive half and full bridges, LVDTs
4 ... 160
Ω
Potentiometric transducers
170 ... 2000
Measuring range (mV/V)
100
1000
3.5 ... 100
50 ... 1000
500
999999, at 10% of the input measuring range
100, at 100% of the input measuring range
"5.5
Input sensitivities
Length of transducer cable, max.
Scaling range, max.
Scaling range, min.
Permissible common-mode voltage, max.
Common-mode rejection
0...60
0...1000
0...4800
Linearity deviation
Noise voltage, typically
0...1 Hz
0...10 Hz
0...100 Hz
0...1000 Hz
Sampling rate, max.
mV/V
m
digits
digits
V
dB
dB
dB
u120
u96
u50
%
t0.03
Measuring range (mV/V)
100
2.5
6
25
50
4
0.1
0.25
1
2
µV/Vpp
µV/Vpp
µV/Vpp
µV/Vpp
1/s
Measurement frequency range, adjustable
4th order low-pass with Bessel characteristic
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4
0.2 ... 4
7
Nominal
value fc
(Hz)
-1
dB
(Hz)
-3
dB
(Hz)
2400
Phase
delay
(ms)
1000
980
1400
500
440
200
190
100
1000
25
60
250
500
Rise time
(ms)
Overshoot
(%)
0.550
0.260
4
690
0.860
0.510
1.5
320
1.6
1.11
1.5
100
160
2.9
2.13
1.3
50
51
83
4.6
4.24
1
20
25
41
8.2
8.36
1
10
13
21
15.5
16.8
0
5
6.1
10.3
30.2
33.4
0
2
3.1
5.2
60
67
0
1
1.6
2.6
119
137
0
0.5
0.79
1.30
240
272
0
0.2
0.19
0.32
950
1070
0
0.1
0.09
0.16
2500
2170
0
0.05
0.049
0.081
3750
4280
0
HBM
Shunt calibration
Effect of operating voltage
on zero point
on sensitivity
mV/V
1"3%
% f.s.
% f.s.
t0.01
t0.01
Effect of 10K change in ambient temperature
on zero point full bridge
on zero point half bridge
on sensitivity
Long term drift over 48 h
(measuring range 4 mV/V; 0.5 h after activation)
DC-voltage transducers
Connectable transducers
Nominal (rated) measuring range
Input signal range
Scaling range, max.
Scaling range, min.
Internal resistance of the signal source
Permissible common-mode voltage, max.
Measurement frequency range, adjustable (-1 dB)
Filter characteristics
Linearity deviation
Sampling rate, max.
Incremental transducers
µV/V
µV/V
%
µV/V
V
V
digits
digits
kΩ
V
Hz
%
1/s
4
1
10
0.05
Measuring range (mV/V)
100
20
40
0.05
2
DC-voltage transducers, voltage sources
"10
"10.5
999999, at 10% of the input measuring range
100, at 100% of the input measuring range
v1
2
0,05 ... 1000
Bessel, 4th order
t0.03
2400
Incremental transducers (up/down counter with zero index
signal)
Connectable transducers
5 V, max. 150 mA or 24 V, max. 300mA
Voltage supply
Time-division multiplex method
Differential inputs (RS422)
2-channel mode
Inputs (F1 ("), F2 ("), Ix ("))
Input levels
Low level
High level
Each line to measurement ground, max.
V
V
V
Hysteresis
V
0.07
Permissible common-mode voltage, max.
V
-7 / +12
Input impedance, typically
Detection of direction of rotation
Input range pulse counting
Maximum pulse rate
Gap between 2 consecutive edges
F1("), F2(")
Scaling range, max.
Scaling range, min.
Measurement frequency range, adjustable (-1 dB)
kΩ
Imp
Imp/s
ns
12
via "90o phase-shifted signal F2
0 ... 999999
1 000 000
u400
digits
digits
Hz
20 at 1 pulse
1 at 10000 pulses
0.05 ... 1000
1/s
2400
Sampling rate, max.
HBM
1000
200
200
0.05
8
t0.8
u2
"14
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SSI transducers
Connectable transducers
Voltage supply
2-channel mode
Data input D(")
Input levels, data input D (")
Low level
High level
Each line to measurement ground, max.
Displacement and angle transducers with SSI interface
5 V, max. 150 mA or 24 V, max. 300 mA
Time-division multiplex method
Differential input (RS422)
V
V
V
t0.8
u2
"14
Hysteresis
V
0.07
Permissible common-mode voltage, max.
V
-7 ... +12
Clock output Cl (")
Differential output voltage Cl("), without load, max.
Differential output voltage Cl("), RL = 50 ohms, min.
V
V
Differential output (RS422)
5.8
2
Common-mode voltage at Cl ("), max.
V
3
Short-circuit current, clock output Cl ("), typically
mA
100
Resolution, single turn
Resolution, multi-turn
Scaling range, max.
Scaling range, min.
Measurement frequency range, adjustable (-1 dB)
Sampling rate, max.
Baud rates
bits
bits
digits
digits
Hz
1/s
kBaud
12, 13
24, 25
20 at 1 pulse
1 at 10000 pulses
0.05 ... 1000
1200
100, 200, 500, 1000
Gray code
Coding
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General specifications
Limit value switches
Number
Reference level
Hysteresis
Adjustment accuracy
Response time, typically (fc=1000 Hz)
Control outputs
Number
Nominal (rated) voltage, external power supply
Permissible supply voltage range
Maximum output current per output
Short-circuit current, typically (Uext. = 24 V, RLt 0.1 ohm)
Short-circuit period
Isolation voltage, typically
Control inputs
Number
Input voltage range LOW
Input voltage range HIGH
Input current, typically, (High level = 24 V)
Isolation voltage, typically
CAN interface
Sampling rate, max.
Protocol
Hardware bus link
Baud rates
Maximum line lengths
4 per channel
gross
1 ... 100
1
t2
%
digit
ms
VDC
4 (MP85DP) / 8 (MP85)
24
10 ... 30
0.5
0.8
unlimited
500
V
V
mA
VDC
1 (MP85DP) / 5 (MP85)
0 ... 5
10 ... 30
12
500
VDC
V
A
A
1/s
kBits/s
m
Termination resistor
Connection
1000
25
1200
CAN 2.0B; CANopen compatible
to ISO 11898
500
250
125
100
50
20
250
500 1000
600 1000 1000
connectable by switch
10
1000
terminals
Parameter memory (Flash)
31 plus factory setting
Multi Media Card (memory card on Flash basis)
Usable types
MBytes
8, 16, 32, 64, 128, 256, 512
Data transmission rate, typically
kBytes/
s
1
File system
DOS
Display
Type
2-line, 8-character alphanumeric, LCD
Keyboard
Touch-sensitive keypad with three keys
Temperature range
Nominal temperature range
oC
0 ...50
Operating temperature range
oC
-20 ... +50
Storage temperature range
oC
-20 ... +70
mm
55 x 146 x 156
g
800
IP20
Degree of protection
Dimensions
Weight, approx.
HBM
10
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Profibus DP interface (MP85DP only)
Profibus DP Slave, as per DIN19245-3
Protocol
Baud rate, max.
MBaud
12
3-123, set via the keyboard
Slave address
Hex 699
Profibus ID number
Configuration data
bytes
5
Parameter data , max.
bytes
6 (+7DP standard)
to DPV1 standard
Parameterization (asynchronous)
Input data , max.
bytes
Output data, max.
bytes
40
ms
1 (for 4 measured values)
ms
t10, for zeroing, limit values
bytes
48
Update rate, inputs
Update rate, outputs
Diagnostic data
142
9-pin sub-D (DIN19245-3), potential separation from power
supply and measurement ground
Profibus connection
Evaluation unit specifications
4000 (auto. data reduction)
Max. number of measured value triplets
(channel x), (channel y), (time)
Sampling rate
Hz
2400
Evaluation
9
Max. number of evaluation windows
oblique or straight
Type of window
Analyzing the course of the curve
Analyzing the mean x or y value in the window
Evaluation methods per window
x coordinates for the tolerance window
absolute or relative to the start position, or
relative to the end position
y coordinates for the tolerance window
absolute or relative to Fmin of tolerance window 2 or
relative to Fmax of tolerance window 2
Stop conditions
External stop signal
Target value y + overshoot time
Target value x + overshoot time
Standstill recognition
Start conditions
External start signal
Target value x
Target value y
31
Number of independent parameter sets
Switching between parameter sets, max.
ms
Duration of offline evaluation end window
ms
500
6
Duration of offline evaluation straight window
ms
15 + 0.15/measurement pair in window
Duration of offline evaluation oblique window
ms
15 +0.3/measurement pair in window
Statistics (separately for each parameter set)
4 x 109
Maximum number of fitting processes
9 per tolerance window
Number of histogram classes for 2 values
(xmax, xmin, ymax, ymin)
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Modifications reserved.
All details describe our products in general form only. They
are not to be understood as express warranty and do not
constitute any form of liability whatsoever.
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Hottinger Baldwin Messtechnik GmbH
Postfach 10 01 51, D-64201 Darmstadt, Germany
Im Tiefen See 45, D-64293 Darmstadt, Germany
Tel.: 061 51/ 8 03-0; Fax: 061 51/ 8039100
E-mail: support@hbm.com www.hbm.com