Renishaw MP11 User manual
#renishawwww.renishaw.com/mp11
Installation guide
MP11 probe
Compliance information for this product is available by scanning the QR code or visiting
www.renishaw.com/mtpdoc
i
www.renishaw.com/mp11
Contents
Before you begin ...................................................................1-1
Warranty ...........................................................................1-1
CNC machines ......................................................................1-1
Care of the probe ....................................................................1-1
Patents ............................................................................1-1
Intended use........................................................................1-1
Safety .............................................................................1-2
Information to the user ...........................................................1-2
Information to the machine supplier / installer .........................................1-2
Information to the equipment installer ...............................................1-2
Equipment operation ............................................................1-2
MP11 basics .......................................................................2-1
System operation ....................................................................2-1
Probe moves .......................................................................2-1
Single and double touch..........................................................2-1
Gauging speed.................................................................2-2
Software requirements ................................................................2-3
Verify your software .............................................................2-3
Job set-up requirements..........................................................2-3
Inspection requirements..........................................................2-3
Basic software ......................................................................2-4
Calibration ....................................................................2-4
Protection .....................................................................2-4
Tool setting probe ...............................................................2-4
Inspection.....................................................................2-4
Additional software features ............................................................2-5
Inspection.....................................................................2-5
Inspection.....................................................................2-5
Dimensions.........................................................................2-6
Storage ............................................................................2-6
Specication ........................................................................2-7
System installation..................................................................3-1
MP11 probe system ..................................................................3-1
Shank attachment....................................................................3-2
Stage 1 – attachment ............................................................3-2
ii MP11 probe
Stylus on-centre adjustment............................................................3-3
Stage 2 – adjustment ............................................................3-3
Stylus trigger force adjustment – gauging force .............................................3-4
Weak link for styli with steel shaft – optional ...............................................3-5
Fitting stylus with weak link onto probe ..............................................3-5
To remove a broken stem.........................................................3-5
Probe cable ........................................................................3-6
Interface output waveforms ............................................................3-7
Wiring diagram – relay normally open (NO) contacts.........................................3-8
Operator safety.................................................................3-8
Wiring diagram – relay normally closed (NC) contacts........................................3-9
Operator safety.................................................................3-9
Maintenance .......................................................................4-1
Probe diaphragm inspection............................................................4-1
Outer diaphragm inspection ............................................................4-2
Inner diaphragm inspection ............................................................4-3
Outer diaphragm replacement ..........................................................4-3
Screw torque values ..................................................................4-4
Fault-nding .......................................................................5-1
Parts list ..........................................................................6-1
Taper shanks for MP11................................................................6-1
1-1
www.renishaw.com/mp11
Before you begin
Warranty
Unless you and Renishaw have agreed and signed a separate written agreement, the equipment and/or
software are sold subject to the Renishaw Standard Terms and Conditions supplied with such equipment
and/or software, or available on request from your local Renishaw ofce.
Renishaw warrants its equipment and software for a limited period (as set out in the Standard Terms
and Conditions), provided that they are installed and used exactly as dened in associated Renishaw
documentation. You should consult these Standard Terms and Conditions to nd out the full details of your
warranty.
Equipment and/or software purchased by you from a third-party supplier is subject to separate terms and
conditions supplied with such equipment and/or software. You should contact your third-party supplier for
details.
CNC machines
CNC machine tools must always be operated by fully-trained personnel in accordance with the
manufacturer’s instructions.
Care of the probe
Keep system components clean and treat the probe as a precision tool.
Patents
None applicable.
Intended use
MP11 is a cabled spindle probe for workpiece inspection and job set-up on CNC milling machines with a
manual tool change.
1-2 MP11 probe: Before you begin
Safety
Information to the user
In all applications involving the use of machine tools, eye protection is recommended.
The MP11 must be installed by a competent person, observing relevant safety precautions. Before starting
work, ensure that the machine tool is in a safe condition with the power switched OFF.
Refer to the machine supplier’s operating instructions.
Information to the machine supplier / installer
It is the machine supplier’s responsibility to ensure that the user is made aware of any hazards involved in
operation, including those mentioned in Renishaw product literature, and to ensure that adequate guards
and safety interlocks are provided.
If the probe system fails, the output signal may falsely indicate a probe seated condition. Do not rely on
probe signals to halt the movement of the machine.
Information to the equipment installer
All Renishaw equipment is designed to comply with the relevant UK, EU and FCC regulatory requirements.
It is the responsibility of the equipment installer to ensure that the following guidelines are adhered to, in
order for the product to function in accordance with these regulations:
• any interface MUST be installed in a position away from any potential sources of electrical noise (for
example, power transformers, servo drives);
• all 0 V/ground connections should be connected to the machine “star point” (the “star point” is a single
point return for all equipment ground and screen cables). This is very important and failure to adhere
to this can cause a potential difference between grounds;
• all screens must be connected as outlined in the user instructions;
• cables must not be routed alongside high current sources (for example, motor power supply cables),
or be near high-speed data lines;
• cable lengths should always be kept to a minimum.
Equipment operation
If this equipment is used in a manner not specied by the manufacturer, the protection provided by the
equipment may be impaired.
2-1
www.renishaw.com/mp11
MP11 basics
System operation
The probe storage area must be clean and provide complete protection against all forms of dirt, oil and
coolant contamination.
The probe is in effect another tool in the system. A workpiece set-up or inspection cycle may be included
at any stage in the machining cycle.
When a probing routine is required, the operator rst inserts the probe in the machine spindle, and then
plugs the power cable into the probe body.
NOTE: Ensure the probe LED is lit, with the stylus seated before commencing a probe routine.
Probing may now commence. A probe routine is activated by a command from the machine control.
When probing is complete the operator must rst disconnect the cable from the probe socket. The free end
of the cable should be parked on a remote socket. Finally return the probe to storage.
The probe must be kept clean and handled with care at all times. The probe is sealed for working in normal
conditions, but extra care must be taken to avoid chips cutting the front seal and coolant contamination of
the plug.
Probe moves
A probe trigger signal is generated when the probe is in the operating mode and the stylus is driven
against a surface. The machine control records the probe contact position and commands machine motion
to stop.
High probing speeds are desirable, however a probing velocity must be chosen which allows the machine
to stop within the limits of stylus overtravel. Follow feed rate guidelines given by supplier.
To ensure a trigger signal is given, drive the probe against the workpiece to a target beyond the expected
surface, but within the limits of stylus overtravel.
After the probe stylus touches the surface, reverse clear of the surface.
Probe gauging move should be made at constant speed.
Single and double touch
If the probe operating sequence is based on a single touch, then the probe may be returned to its start
point, following a gauging move.
With some types of controllers, it is an advantage to use the two touch method. The rst move nds the
surface quickly. Then the probe is reversed to a position clear of the surface, before making the second
touch at a slower feed rate, thereby recording the surface position at a higher resolution.
2-2 MP11 probe: MP11 basics
Gauging speed
Gauging speeds are not limited by the transmission system delay, which has a repeatability of less than
2 μs.
System delays are constant for each direction measurement is taken. These delays are automatically
cancelled out and need not be taken into account, provided a datum move is made in the same direction
and velocity as each measurement move.
Z
X - YX - Y
LED - OffLED - Off
21.5 mm
(0.84 in)
75 mm
(2.95 in)
Ø60 mm
(2.36 in)
LED - On
17.5° 17.5°
Stylus overtravel limits
Stylus length X - Y Z
50 mm
(1.96 in)
21.5 mm
(0.84 in)
8 mm
(0.31 in)
100 mm
(3.93 in)
36.5 mm
(1.43 in)
8 mm
(0.31 in)
2-3
www.renishaw.com/mp11
Software requirements
Verify your software
1. Does your software have calibration routines which compensate for stylus on centre errors?
If not you must set the probe stylus on centre mechanically.
NOTE: When using probe styli which are not on spindle centre. Spindle orientation positioning
repeatability is important to avoid probe measurement errors.
2. Does your software compensate for probe triggering characteristics in all measuring directions?
Job set-up requirements
1. Does the software automatically adjust the program co-ordinate system to the relevant set-up feature
on the component?
Inspection requirements
1. Simple to use canned cycles for standard features:
Bore / Boss.
Web / Pocket.
Single surface.
Simple to use canned cycles for optional features:
Angle measurement.
Vector 3 point bore / Boss.
Vector single surface.
Good software will allow the following functions:
• Update work co-ordinate systems for positioning.
• Report measured sizes and update tool offsets for automatic tool offset compensations.
• Print data in the form of an inspection report to an external PC / printer.
• Set tolerances on features.
2-4 MP11 probe: MP11 basics
Basic software
Calibration
Probe XY offset calibration
Stylus ball radius calibration
Probe length calibration
Protection
Probe collision protection
Tool setting probe
Tool length
Inspection
Bore and boss measure
Web and pocket measure
Internal and external corner nd
XYZ single surface position
Inspection print-out
COMPONENT No. 1
OFFSET
NO.
NOMINAL
DIMENSION
TOLERANCE DEVIATION
FROM
NOMINAL
COMMENTS
99 1.5000 .1000 .0105
97 200.0000 .1000 .2054 OUT OF TOL
2-6 MP11 probe: MP11 basics
Dimensions
Storage
The custom box provides, clean, protected storage, when the probe is not in use.
CNC
machine
control
Taper shank to suit machine
(available from Renishaw)
Stylus 50 (1.96) long,
other length styli may
be used
Pull stud
(not supplied by
Renishaw)
Stylus
on-centre
adjustment
Cable socket
17.5°
17.5°
Ø6
(0.23)
Ø60
(2.36)
21.5
(0.84)
Z
8 mm
(0.31 in)
75 (2.95)
Stylus spring
pressure adjustment
Curly
Cable
Coiled
Stretched
765 (30.1)
1695 (66.7)
Dimensions mm (in)
2-7
www.renishaw.com/mp11
Specication
Principal application Workpiece inspection and job set-up on CNC milling machines with
manual tool change.
Transmission type Hard-wired transmission
Compatible interfaces N/A (integrated interface)
Recommended styli Ceramic, lengths 50 mm (1.97 in) to 100 mm (3.94 in)
Weight 540 g (19.05 oz)
Sense directions ±X, ±Y, +Z
Unidirectional repeatability 1.00 µm (40 µin) 2s1
Stylus trigger force 2 3
XY low force
XY high force
+Z direction
0.50 N, 51 gf (1.80 ozf)
1.50 N, 153 gf (5.40 ozf)
1.80 N to 7.00 N, 184 gf to 714 gf (6.47 ozf to 25.18 ozf)
Stylus overtravel XY plane
+Z plane
±17.5°
8 mm (0.31 in)
Environment IP rating IP66, BS EN 60529:1992+A2:2013
Storage temperature −10 °C to +70 °C (+14 °F to +158 °F)
Operating temperature +5 °C to +50 °C (+41 °F to +122 °F)
1Performance specication is tested at a standard test velocity of 480 mm/min (18.9 in/min) with a 50 mm stylus. Signicantly higher velocity is
possible depending on application requirements.
2Trigger force, which is critical in some applications, is the force exerted on the component by the stylus when the probe triggers. The maximum
force applied will occur after the trigger point (overtravel). The force value depends on related variables including measuring speed and machine
deceleration.
3These are the factory settings; manual adjustment is possible.
2-8 MP11 probe: MP11 basics
This page is intentionally left blank.
3-1
www.renishaw.com/mp11
System installation
MP11 probe system
1. Workpiece.
2. Machine spindle.
3. Shank.
Modied to accept the MP11 probe.
4. Stylus.
5. MP11 probe.
6. Interface.
An interface contained within the probe body,
processes signals between the probe and
CNC machine control.
7. LED – light emitting diode.
The LED is lit when the stylus is seated.
The LED is off when the stylus is deected
(probe triggered) or power is off.
8. Cable.
Signals are transmitted between the probe
and CNC machine control via the cable.
9. CNC machine control.
1
2
3
8
CNC
machine
control
Remote
socket
6
7
5
4
9
3-2 MP11 probe: System installation
Shank attachment
Stage 1 – attachment
1. Fully slacken screws A. Then t screws Bto shank, after lightly greasing them.
2. Fit the probe to the shank as shown in the diagram and visually position the probe centrally relative to
the shank. Partially tighten screws B2 Nm – 3 Nm (1.5 lbf.ft – 2.2 lbf.ft).
3. Fit the probe/shank assembly into the machine spindle.
Probe base plate
2.5 mm A/F
4 mm A/F
Shank
A
B
3-3
www.renishaw.com/mp11
Probe base plate
Shank
Stylus on-centre adjustment
Adjusters incorporated in the shank mounting allow the stylus tip to be set to correspond with the spindle
centre line.
Stylus tip position is established using a low force, (less than 0.2 N / 0.45 lbf) dial test indicator or setting
gauge.
Stage 2 – adjustment
1. Adjust on-centre position using screws Aindiviually backing them off each time or by tapping the
probe baseplate with a soft implement.
2. When the stylus tip runout is less than 20 μm, fully tighten screws B6 Nm – 8 Nm (4.4 lbf.ft –
5.9 lbf.ft) and repeat step 1 until desired runout is achieved (5 μm possible).
If using screws A, use them in opposition to move the probe, at the same time progressively
tightening them as the nal setting is approached. Use two hexagon keys if necessary.
3. It is important that all four screws Aare tight or tightened 1.5 Nm – 3.5 Nm (1.1 lbf.ft – 2.6 lbf.ft), once
the nal setting has been achieved.
NOTE: If at any time the unit is accidentlly dropped, it should be checked for on-centre position.
2.5 mm A/F
4 mm A/F
A
B
3-4 MP11 probe: System installation
Stylus trigger force adjustment – gauging force
Stylus trigger force is determined by internal spring pressure, which is set by Renishaw. Only adjust spring
pressure in special circumstances (for example, when the weight of the stylus is too great for standard
pressures).
It is advisable to make adjustments in small increments, and test the results at each stage, until a
satisfactory result is obtained.
To adjust pressure, remove the protective cap, and insert the 2 mm hexagon key into the adjuster socket.
Turn the key anti-clockwise to reduce spring pressure, this will increase touch sensitivity.
Turn the key clockwise to increase spring pressure.
Adjustment is limited in both directions by end stops.
NOTE: Stylus trigger force adjustment and use of styli other than calibration stylus type, may cause probe
repeatability to differ from the calibration certicate results.
Protective cover
Increase pressure
Decrease pressure
2 mm A/F
3-5
www.renishaw.com/mp11
Weak link for styli with steel shaft – optional
In the event of excessive stylus overtravel the weak link stem, tted between the probe and stylus is
designed to break, thereby protecting the probe from damage.
Fitting stylus with weak link onto probe
Take care to avoid stressing the weak link during assembly – see page 4-4.
NOTE: The weak link is not used with ceramic shaft styli.
To remove a broken stem
Stylus Weak link
12 mm
(0.47in)
3-6 MP11 probe: System installation
Probe cable
WARNING: The probe must not be spun, when it is mounted in the machine spindle. Flying cable could
harm the operator.
The cable conveys probe signals to the CNC machine control, and supplies power for probe operation.
One end of the cable is permanently connected to the CNC machine control. The free end of the cable is
manually plugged into the probe, when the probe is mounted in the machine spindle.
When the probe is not in use it is recommended that the free end of the cable is parked in a remote socket
in a clean area within the machine.
The remote park socket could then be wired, such that when the cable plug is disconnected from the
parked position the machine spindle will not rotate (i.e. it is inhibited). Protect the remote socket with a
cover when the plug is removed.
Remote socket
Parked position
CNC
machine
control
Table of contents
Other Renishaw Power Tools Accessories manuals
