Page 1
OMP40-2 optical machine probe
Installation guide
H-4071-8504-03-A
Page 2
Renishaw part no: H-4071-8504-03-A
Issued: February 2009
© 2009 Renishaw plc. All rights reserved.
This document may not be copied or reproduced
in whole or in part, or transferred to any other
media or language, by any means, without the
prior written permission of Renishaw plc.
The publication of material within this document
does not imply freedom from the patent rights of
Renishaw plc.
Page 3
i
Contents
1.0 Before you begin
Disclaimer .................................................................................................................. 1.1
Trademarks ................................................................................................................1.1
Warranty ..................................................................................................................... 1.1
Changes to equipment ...............................................................................................1.1
CNC machines ...........................................................................................................1.1
Care of the probe ....................................................................................................... 1.1
Patents .......................................................................................................................1.2
EC declaration of conformity ........................................................................................... 1.3
FCC declaration (USA) .................................................................................................... 1.3
Safety .............................................................................................................................. 1.4
2.0 OMP40-2 basics
Introduction ...................................................................................................................... 2.1
Optical transmission method ........................................................................................... 2.1
Trigger Logic™ ................................................................................................................ 2.2
Modes of operation ..........................................................................................................2.3
Configurable settings .......................................................................................................2.4
OMP40-2 dimensions ...................................................................................................... 2.5
OMP40-2 specification .................................................................................................... 2.6
Principal application ................................................................................................... 2.6
Overall dimensions ..................................................................................................... 2.6
Weight ........................................................................................................................ 2.6
Operating ................................................................................................................... 2.6
Batteries ..................................................................................................................... 2.7
Environment ............................................................................................................... 2.7
Contents
Page 4
OMP40-2 installation guide
ii
Contents
3.0 System installation
Installing the OMP40-2 with an OMI-2/OMI-2T/OMI-2H/OMI .................................... 3.1
Performance envelope with an OMI-2/OMI-2T/OMI-2H ............................................. 3.2
Performance envelope with an OMI ........................................................................... 3.3
Installing the OMP40-2 with an OMM and MI12 ........................................................ 3.4
Performance envelope with an OMM ......................................................................... 3.5
Preparing the OMP40-2 for use ................................................................................. 3.6
Fitting the stylus .................................................................................................... 3.6
Installing the batteries ........................................................................................... 3.7
Mounting the probe on a shank ............................................................................. 3.8
Stylus on-centre adjustment .................................................................................. 3.9
Calibrating the OMP40-2 .......................................................................................... 3.10
4.0 Trigger Logic™
Reviewing the current probe settings ......................................................................... 4.1
Probe settings record table ........................................................................................ 4.2
Changing the probe settings ...................................................................................... 4.3
Operating mode ......................................................................................................... 4.4
5.0 Maintenance
Maintenance .............................................................................................................. 5.1
Cleaning the probe .................................................................................................... 5.1
Changing the batteries ............................................................................................... 5.2
Battery types .............................................................................................................. 5.3
6.0 Fault finding
Fault finding ................................................................................................................ 6.1
7.0 Parts list
Parts list ..................................................................................................................... 7.1
Page 5
1.1
Disclaimer
RENISHAW HAS MADE CONSIDERABLE
EFFORTS TO ENSURE THE CONTENT OF THIS
DOCUMENT IS CORRECT AT THE DATE OF
PUBLICATION BUT MAKES NO WARRANTIES
OR REPRESENTATIONS REGARDING
THE CONTENT. RENISHAW EXCLUDES
LIABILITY, HOWSOEVER ARISING, FOR ANY
INACCURACIES IN THIS DOCUMENT.
Trademarks
RENISHAW® and the probe emblem used in the
RENISHAW logo are registered trademarks of
Renishaw plc in the UK and other countries.
apply innovation™ and Trigger Logic™ are
trademarks of Renishaw plc.
All other brand names and product names used
in this document are trade names, service marks,
trademarks, or registered trademarks of their
respective owners.
Warranty
Equipment requiring attention under warranty
must be returned to your equipment supplier.
No claims will be considered where Renishaw
equipment has been misused, or where
repairs or adjustments have been attempted by
unauthorised persons. Prior consent must be
obtained in instances where Renishaw equipment
is to be substituted or omitted. Failure to comply
with this requirement will invalidate the warranty.
Before you begin
Changes to equipment
Renishaw reserves the right to change equipment
specifications without notice.
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.
Page 6
OMP40-2 installation guide
1.2
Before you begin
EP 0390342
EP 0695926
EP 0974208
EP 1130557
EP 1185838
EP 1373995
EP 1397637
EP 1425550
EP 1477767
EP 1477768
EP 1503524 B
EP 1701234
EP 1734426
EP 1804020
JP 2945709
JP 2994401
JP 3967592
JP 2003-526170
JP 2004-522961
JP 2004-530234
JP 2005-502035
JP 2006-313567
US 5040931
US 5150529
US 5669151
US 6776344 B2
US 6839563 B1
US 6860026 B2
US 6941671 B2
US 6472981 B2
US 7145468 B2
Patents
Features of the OMP40-2 probe, and other similar
Renishaw probes, are the subject of one or more
of the following patents and/or patent applications:
Page 7
1.3
Before you begin
FCC DECLARATION (USA)
FCC Section 15.19
This device complies with Part 15 of the
FCC rules.
Operation is subject to the following two
conditions:
1. This device may not cause harmful
interference.
2. This device may accept any interference
received, including interference that may
cause undesired operation.
FCC Section 15.105
This equipment has been tested and found to
comply with the limits for a Class A digital device,
pursuant to Part 15 of the FCC rules. These limits
are designed to provide reasonable protection
against harmful interference when the equipment
is operated in a commercial environment.
This equipment generates, uses, and can radiate
radio frequency energy and, if not installed
and used in accordance with the instruction
manual, may cause harmful interference to radio
communications. Operation of this equipment
in a residential area is likely to cause harmful
interference, in which case you will be required
to correct the interference at your own expense.
FCC Section 15.21
The user is cautioned that any changes or
modifications not expressly approved by
Renishaw plc, or authorised representative
could void the user’s authority to operate the
equipment.
C
EC DECLARATION OF
CONFORMITY
Renishaw plc declares that the product:Name
Description
OMP40-2
Optical machine probe
has been manufactured in conformity with the
following standards:-
BS EN 61326-1:2006
BS EN 60825-12:2004
Electrical equipment
for measurement,
control and
laboratory use - EMC
requirements -
Part 1: General
requirements
Immunity to Table 2
- industrial locations.
Emissions to Class A
- industrial locations.
Safety of laser
products Part 12: Safety of
free space optical
communication
systems used for
transmission of
information
and that it complies with the requirements of
the following directives: -
2004/108/EC
2006/95/EC
Electromagnetic
compatibility
Low voltage
The above information is summarised from the
full EC Declaration of Conformity. A copy is
available from Renishaw on request.
Page 8
Safety
Information to the user
Handle and dispose of batteries in accordance
with the manufacturer's recommendations. Use
only the recommended batteries. Do not allow the
battery terminals to contact other metallic objects.
Take care not to short the battery contacts as
this may be a fire hazard. Ensure that the contact
strips are located securely.
The OMP40-2 has a glass window, handle with
care if broken, to avoid injury.
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.
Under certain circumstances, the probe signal
may falsely indicate a probe seated condition. Do
not rely on probe signals to halt the movement of
the machine.
Information to equipment installer
All Renishaw equipment is designed to comply
with the relevant EEC 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, i.e. power transformers, servo drives
etc;
•
all 0V/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, i.e. motor power supply
cables etc, or be near high speed data lines;
•
cable lengths should always be kept to a
minimum.
OMP40-2 installation guide
1.4
Before you begin
Page 9
2.12.1
OMP40-2 basics
Introduction
Welcome to the OMP40-2 job set-up and
inspection probe, an upgrade of the multiple
award winning OMP40. At only 40 mm diameter,
this compact probe sets industry standards for
functionality, reliability and robustness in the
harshest of machine tool environments.
The OMP40-2 is ideal for small to medium
machining centres including the growing range of
HSK machines.
•
The OMP40 uses legacy transmission
only, whereas the OMP40-2 can use either
modulated or legacy transmission modes.
•
full compatibility with Renishaw's industry
proven optical transmission systems.
•
360° optical 'switch-on' facility allows probe
to be switched off in any position.
Optical transmission method
The OMP40-2 can be operated in either
modulated or legacy mode.
Modulated mode
Certain forms of light interference can cause
false triggers or mimic a start signal and falsely
activate the probe. These effects are much
reduced when modulated transmission is
selected.
When set to modulated mode, the probe will
only function with one of the following modulated
receivers: OMI-2T, OMI-2 OMI-2H or OMI-2C.
Modulated transmission is capable of providing
two different coded start signals. This allows the
use of two probes with one interface. Twin probe
installations require an OMI-2T interface.
Legacy mode
When set to legacy mode, the probe will only
function with an OMI or OMM/MI12.
Page 10
OMP40-2 installation guide
2.2
OMP40-2 basics
Trigger Logic™
All OMP40-2 settings are configured using the
Trigger Logic™ technique.
Trigger Logic™ (see Section 4 - Trigger Logic™)
is a method that allows the user to view and
select all available mode settings in order to
customise a probe to suit a specific application.
Trigger Logic™ is activated by battery insertion
and uses a sequence of stylus deflection
(triggering) to systematically lead the user
through the available choices to allow selection of
the required mode options.
Current probe settings can be reviewed by
simply removing the batteries for a minimum of
5 seconds, and then replacing them to activate
the Trigger Logic™ review sequence.
Page 11
2.3
OMP40-2 basics
Modes of operation
The OMP40-2 can be in one of three modes:
Standby mode: where the probe is awaiting a
switch-on signal:
Operational mode: where the probe has been
activated:
Configuration mode: where Trigger Logic™ may
be used to configure probe settings.
NOTE:
A visual indication of currently selected probe
settings is provided on battery insertion, by the
three multi-colour LEDs located within the probe
window (see Section 4 - Trigger Logic™).
NOTE:
Ensure that the probe does not remain active in
the tool changer when optical on/time out option
is selected by observing the LEDs.
Probe switch-on Probe switch-off
Optical switch-on
(When commanded by an
M code or machine output).
Optical off
(When commanded by an M code or machine output).
A timer automatically switches the probe off after 90 minutes from
the last trigger if not turned off by an M code or machine output.
Note:
This method is required when operating a twin probe system
with an OMI-2T.
After being switched on, the OMP40-2 must be on for 1 second
minimum before being switched off.
Timer off (time out)
Time out will occur (12, 33 or 134 seconds) after the last probe
trigger or reseat.
Optical switch-on
(When commanded by
Auto start).
Timer off (time out)
Time out will occur (12, 33 or 134 seconds) after the last probe
trigger or reseat.
Page 12
OMP40-2 installation guide
2.4
OMP40-2 basics
Configurable settings
See pages 4.1/4.3
Optical switch-off
See table page 2.3
Enhanced trigger filter
Probes subjected to high levels of vibration or
shock loads may output signals without having
contacted any surface. The Enhanced trigger filter
improves the probes resistance to these effects.
When the filter is enabled, a constant 10 ms delay
is introduced to the probe output.
The OMP40-2 is factory set to trigger filter off.
NOTE:
It may be necessary to reduce the probe
approach speed to allow for the increased stylus
overtravel during the extended time delay.
Transmission method/probe
identification
Legacy start filter off/on
If false start
problems are experienced in
Legacy mode, activate the Legacy start filter
on option. This introduces a 1 second delay
to the probe switch on time and improves the
probes resistance to false starts caused by light
interference.
Modulated Probe 1/Probe 2
To operate a twin probe system, one probe
needs to be set to Probe 1 start and the other
set to Probe 2 start, these settings are user
configurable.
In a twin probe system such as a spindle probe
and an optical tool setting probe, the spindle
probe would be set to Probe 1 start and the tool
setter would be set to Probe 2 start.
For most applications the spindle probe
should be set to Probe 1 start. However where
the application uses two spindle probes the
secondary spindle probe is set to Probe 2.
Optical power
Where the separation between the OMP40-2 and
the receiver is small (no more than 2 metres), the
low optical power setting may be selected, see
pages 3.2/3.3/3.5 and 4.3. This setting will reduce
the optical transmission range and extend battery
life.
The OMP40-2 is factory set to standard Optical
power.
Page 13
2.5
OMP40-2 basics
UK
Stylus overtravel limits
Stylus length ±X/±Y +Z
50 (1.97) 12 (0.47) 6 (0.24)
100 (3.94) 22 (0.87) 6 (0.24)
OMP40-2 dimensions
12.5°
12.5°
19 (0.75)
50 (1.97)
50 (1.97)
±X/±Y
+Z
Probe status LEDs
Battery cassette
dimension given in mm (in)
Ø40 (Ø1.57)
M4 stylus
Page 14
OMP40-2 installation guide
2.6
OMP40-2 basics
OMP40-2 specification
Principal application:
Workpiece measurement and job set-up on small to medium
machining centres
Overall dimensions:
Length 50 mm (1.97 in)
Diameter 40 mm (1.57 in)
Weight: with batteries
260 g (9.17 oz)
without batteries
240 g (8.46 oz)
Operating:
Signal
transmission type:
360° infra-red optical transmission (modulated or legacy)
Switch-on method:
Optical on or Auto Start
Switch-off method:
Optical off or Timer
Operating range:
Up to 5 m (16.4 ft)
Receiver/interface: OMI-2T, OMI-2, OMI-2H, OMI-2C, OMI or OMM/MI12
Sense directions:
Omni-directional ±X, ±Y, +Z
Uni-directional repeatability:
1.0 µm
(0.00004 in) 2 sigma (2σ) *
Stylus trigger force (factory set):
low force direction
XY plane
0.5 N, 50 gf (1.76 ozf)
§
+Z direction
5.85 N, 585 gf (20.63 ozf) §
high force direction
XY plane
0.9 N, 90 gf (3.17 ozf)
§
+Z direction
5.85 N, 585 gf (20.63 ozf) §
Stylus overtravel: XY plane
±12.5°
+Z direction
6 mm (0.24 in)
* Probe performance specification is for a test velocity of 480 mm/min (1.57 ft/min)
using a 50 mm (1.97 in) straight stylus.
§ Factory set using 50 mm (1.97 in) straight stylus.
Page 15
2.7
OMP40-2 basics
Typical battery life
MODULATED optical transmission mode
Standby life 5% usage (72 minutes/day) Continuous use
Standard
power mode
Low
power mode
Standard
power mode
Low
power mode
250 days 85 days 120 days 140 hours 230 hours
LEGACY optical transmission mode
Standby life 5% usage (72 minutes/day) Continuous use
Standard
power mode
Low
power mode
Standard
power mode
Low
power mode
250 days 115 days 170 days 170 hours 270 hours
OMP40-2 specification
Batteries:
Battery type:
½ AA Lithium Thionyl Chloride (3.6 V) x 2
Battery reserve life:
Approximately 1 week after a low battery
warning is first given
Low battery indication:
Blue flashing LED in conjunction with normal
red or green probe status LED
Dead battery indication:
Constant or flashing red
Environment:
IP rating:
IPX8
Operating temperature:
5 °C to 50 °C (41 °F to 122 °F)
Storage temperature:
-10 °C to 70 °C (14 °F to 158 °F)
Page 16
OMP40-2 installation guide
2.8
OMP40-2 basics
This page left intentionally blank
Page 17
3.1
System installation
Installing the OMP40-2 with an
OMI-2/OMI-2T/OMI-2H/OMI
CNC machining centre spindle
Mounting bracket
OMI-2/OMI-2T/OMI-2H/OMI
PSU3 power supply
(optional)
CNC
machine
control
Tool setting probe, only with OMI-2T/OMI-2H
Workpiece
Cable
Renishaw publications:
OMI-2 user's guide H-2000-5233
OMI-2T user's guide H-2000-5439
OMI user's guide H-2000-5062
PSU3 user's guide H-2000-5057
Stylus
OMP40-2
inspection
probe
Probe and optical receiver
The probe and receiver must be in the other's
field of view, and within the performance
envelope shown (pages 3.2/3.3). The OMP40-2
performance envelope is based on the receiver
being at 0°, and vice-versa.
Natural reflective surfaces within the machine
may increase the signal transmission range.
Coolant residue accumulating on the OMP40-2
or OMI-2T/OMI-2/OMI-2H/OMI windows may
reduce the signal transmission range. Wipe clean
as often as is necessary to maintain unrestricted
transmission.
Operation in temperatures of 0 °C to 5 °C or
50 °C to 60 °C (32 °F to 41 °F or 122 °F to
140 °F) will result in some reduction in range.
Page 18
OMP40-2 installation guide
3.2
System
installation
Performance envelope with
an OMI-2/OMI-2T/OMI-2H
(modulated transmission)
OMP40-2
OMI-2/
OMI-2T/
OMI-2H
0°
Optical
centre line
60°
45°
45°
15°
30°
30°
15°
60°
0°
60°
45°
45°
15°
30°
30°
15°
60°
75°
4 (13.1)
3 (9.8)
2 (6.5)
1 (3.3)
5 (16.4)
4 (13.1)
3 (9.8)
2 (6.5)
1 (3.3)
5 (16.4)
75°
75°
75°
Range m (ft)
Switch on/off
Operating - standard power mode
Operating - low power mode
Typical plot at 20 °C (68 °F)
360° transmission around
probe axis in metres (feet)
Optical power setting
If two machines are operating in close proximity
to each other, take care to ensure that signals
transmitted from a probe on one machine are not
received by the receiver on the other machine,
and vice versa.
When this is the case, it is recommended that the
low optical power setting on probes is used, and
that the low range setting is used on the receiver.
Receiver position
To assist finding the optimum position for the
installation, signal condition is displayed on the
OMI-2/OMI-2T/OMI-2H receiver.
Please refer to the receiver User’s Guide.
Page 19
3.3
System
installation
Performance envelope with an
OMI (legacy transmission)
OMP40-2
OMI
0°
60°
45°
45°
15°
30°
30°
15°
60°
0°
60°
45°
45°
15°
30°
30°
15°
60°
75°
4 (13.1)
3 (9.8)
2 (6.5)
1 (3.3)
5 (16.4)
4 (13.1)
3 (9.8)
2 (6.5)
1 (3.3)
5 (16.4)
75°
75°
75°
Range m (ft)
Switch on/off
Operating - standard power mode
Operating - low power mode
Typical plot at 20 °C (68 °F)
360° transmission around
probe axis in metres (feet)
Optical
centre line
Optical power setting
If two machines are operating in close proximity
to each other, take care to ensure that signals
transmitted from a probe on one machine are not
received by the receiver on the other machine,
and vice versa.
When this is the case, it is recommended that the
low optical power setting on probes is used, and
that the low range setting is used on the receiver.
Receiver position
To assist finding the optimum position for the
installation, signal condition is displayed on the
OMI receiver.
Please refer to the receiver User’s Guide.
Page 20
OMP40-2 installation guide
3.4
System
installation
MI12
CNC machining centre spindle
CNC
machine
control
Mounting bracket
Cable
Workpiece
OMM
Installing the OMP40-2 with an
OMM and MI12
Renishaw publications:
OMM user's guide H-2000-5044
MI12 user's guide H-2000-5073
PSU3 user's guide H-2000-5057
Stylus
PSU3 power supply
(optional)
MI12 interface
OMP40-2
inspection
probe
Probe and optical receiver
The probe and receiver must be in the other's
field of view, and within the performance envelope
shown (page 3.5). The OMP40-2 performance
envelope is based on the receiver being at 0°,
and vice-versa.
Natural reflective surfaces within the machine
may increase the signal transmission range.
Coolant residue accumulating on the OMP40-2
or OMM windows may reduce the signal
transmission range. Wipe clean as often as is
necessary to maintain unrestricted transmission.
Operation in temperatures of 0 °C to 5 °C or
50 °C to 60 °C (32 °F to 41 °F or 122 °F to
140 °F) will result in some reduction in range.
On large machine tools, it is possible to provide
greater reception coverage by mounting two
OMMs connected to a single MI12 interface.
Page 21
3.5
System
installation
0°
OMP40-2
60°
45°
45°
15°
30°
30°
75°
15°
60°
OMM
0°
60°
45°
45°
15°
30°
30°
75°
15°
60°
4 (13.1)
3 (9.8)
2 (6.6)
1 (3.3)
5 (16.4)
4 (13.1)
3 (9.8)
2 (6.6)
1 (3.3)
5 (16.4)
75°
75°
Typical plot at 20 °C (68 °F)
360° transmission around
probe axis in metres (feet)
Performance envelope with an
OMM (legacy transmission)
Range m (ft)
Switch on/off
Operating - standard power mode
Operating - low power mode
Optical
centre line
Optical power setting
If two machines are operating in close proximity
to each other, take care to ensure that signals
transmitted from a probe on one machine are not
received by the receiver on the other machine,
and vice versa.
When this is the case, it is recommended that the
low optical power setting on probes is used, and
that the low range setting is used on the receiver.
.
Page 22
OMP40-2 installation guide
3.6
System
installation
Fitting the stylus
Preparing the OMP40-2 for use
M-5000-3707
1
2
Page 23
3.7
System
installation
Installing the batteries
1
2
3
4
NOTES:
See Section 5 - Maintenance for list of suitable
battery types.
When inserting batteries, check that the battery
polarity is correct.
If dead batteries are inadvertently inserted into
the probe then the LEDs will remain a constant
red, see page 4.4.
Do not allow coolant or debris to enter the
battery compartment.
After inserting the batteries the LEDs will display
the current probe settings (for details see
Section 4 - Trigger Logic™).
Page 24
OMP40-2 installation guide
3.8
System
installation
Mounting the probe on a shank
1
2
2 mm AF
0.5 Nm - 1.5 Nm
(0.37 lbf.ft - 1.1 lbf.ft)
(x 2)
Page 25
3.9
System
installation
Stylus on-centre adjustment
2
3
2 mm AF
1.5 Nm - 2.2 Nm
(1.1 lbf.ft - 1.62 lbf.ft)
(x 2)
2 mm AF
1.5 Nm - 2.2 Nm
(1.1 lbf.ft - 1.62 lbf.ft)
(x4 )
2 mm AF
0.5 Nm - 1.5 Nm
(0.37 lbf.ft - 1.1 lbf.ft)
(x 4)
NOTES:
If a probe and shank assembly is
dropped, it must be rechecked for
correct on-centre adjustment.
Do not hit or tap the probe to achieve
on-centre adjustment.
1
Page 26
OMP40-2 installation guide
3.10
System
installation
Calibrating the OMP40-2
Why calibrate a probe?
A spindle probe is just one component of the
measurement system which communicates with
the machine tool. Each part of the system can
introduce a constant difference between the
position that the stylus touches, and the position
that is reported to the machine. If the probe is
not calibrated, this difference will appear as an
inaccuracy in the measurement. Calibration of the
probe allows the probing software to compensate
for this difference.
During normal use, the difference between the
touch position and the reported position does
not change but it is important that the probe is
calibrated in the following circumstances:
•
when a probe system is to be used for the
first time;
•
when a new stylus is fitted to the probe;
•
when it is suspected that the stylus has
become distorted or that the probe has
crashed;
•
at regular intervals to compensate for
mechanical changes of your machine tool;
•
if repeatability of relocation of the probe
shank is poor. In this case, the probe may
need to be recalibrated each time it is
selected.
It is good practice to set the tip of the stylus
on-centre, because this reduces the effect of any
variation in spindle and tool orientation (see page
3.9). A small amount of run-out is acceptable, and
can be compensated for as part of the normal
calibration process.
Three different operations are to be used when
calibrating a probe. They are:
•
calibrating in either a bored hole or on a
turned diameter of known position;
•
calibrating either in a ring gauge or on a
datum sphere;
•
calibrating the probe length.
Calibrating in a bored hole or on a
turned diameter
Calibrating a probe, either in a bored hole or on
a turned diameter of known size, automatically
stores values for the offset of the stylus ball to
the spindle centre-line. The stored values are
then used automatically in the measuring cycles.
Measured values are compensated by these
values so that they are relative to the true spindle
centre-line.
Calibrating in a ring gauge or on a
datum sphere
Calibrating a probe either in a ring gauge or
on a datum sphere with a known diameter
automatically stores one or more value for the
radius of the stylus ball. The stored values are
then used automatically by the measuring cycles
to give the true size of the feature. The values are
also used to give true positions of single surface
features.
NOTE:
The stored radii values are based on the true
electronic trigger points. These values are
different from the physical sizes.
Calibrating the probe length
Calibrating a probe on a known reference surface
determines the length of the probe, based on
the electronic trigger point. The stored value for
length is different from the physical length of the
probe assembly. Additionally, the operation can
automatically compensate for machine and fixture
height errors by adjusting the probe length value
that is stored.
Page 27
4.1
Trigger Logic™
Reviewing the current probe settings
Switch off method
Optical off
or
Short timeout
12 s
or
Medium timeout
33 s
or
Long timeout
134 s
1
2
3
Optical power
Low
or
Standard
Enhanced trigger filter setting
Trigger filter
off
or
Trigger filter
on
Probe in standby mode
Optical transmission method/Probe identification
Legacy
Start filter
off
or
Legacy
Start filter
on
or
Modulated
Probe 1
or
Modulated
Probe 2
Battery status
Battery good
or
Battery low
> 5 s
Key to the symbols
LED short flash
LED long flash
LED check
Page 28
OMP40-2 installation guide
4.2
Trigger Logic™
Probe settings record table
This page is provided to note your probe's
settings.
✔ tick
Switch-on method
Optical switch-on or Auto Start
Switch-off method
Optical off
Short time out (12 sec)
Medium time out (33 sec)
Long time out (134 sec)
Enhanced trigger filter
setting
Trigger filter off
Trigger filter on
Optical transmission
method
Legacy start filter off
Legacy start filter on
Modulated probe 1
Modulated probe 2
Optical power setting
Low optical power
Standard optical power
OMP40-2 serial no ..............................................
Page 29
4.3
Trigger Logic™
To change optical power
Low Standard
To change optical transmission method/Probe identification
Legacy
Start filter off
Legacy
Start filter on
Modulated
Probe 1
Modulated
Probe 2
To change enhanced trigger filter setting
Off
0 s
On
10 ms
To change switch-off method
Optical off Short timeout
12 s
Medium timeout
33 s
Long timeout
134 s
Insert batteries or, if already installed, remove for
5 seconds and replace. Following the LED check,
immediately deflect the stylus and hold deflected
until five red flashes have been observed (if the
battery power is low then each of the five red
flashes will be followed by a blue flash). Keep
the stylus deflected until the 'switch on method'
setting is displayed, then release the stylus. The
probe is now in configuration mode and Trigger
Logic™ is activated.
3
Deflect the stylus and hold deflected until
after the battery status has been displayed
at the end of the review sequence.
New settings complete
Return to ‘To change switch-off method’
Changing the probe settings
1
2
3
> 5 s
Key to the symbols
LED short flash
LED long flash
Deflect the stylus.
Wait less than 4
seconds before
moving to next
menu option.
Deflect the stylus.
Wait more than 4
seconds before
moving to next
menu.
To exit, leave the
stylus untouched
for more than 20
seconds.
LED check
Battery status
Battery good
or
Battery low
Page 30
OMP40-2 installation guide
4.4
Trigger Logic™
Operating mode
LEDs
flashing
green
LEDs
flashing
red
LEDs
flashing
red
X/Y
Z
Probe status LEDs
LED colour Probe status Graphic hint
Flashing green Probe seated in operating mode
Flashing red Probe triggered in operating mode
Flashing green and blue Probe seated in operating mode
- low battery
Flashing red and blue Probe triggered in operating mode
- low battery
Constant red Battery dead
Flashing red
or
red and green
or
red, green and blue
Unsuitable batteries
NOTES:
Due to the nature of Lithium Thionyl Chloride batteries, if a 'low battery' LED sequence is
ignored or overlooked, then it is possible for the following sequence of events to occur:
1. When the probe is active, the batteries discharge until battery power becomes too low for
the probe to operate correctly.
2. The probe stops functioning, but then re-activates as the batteries recharge sufficiently to
provide the probe with power.
3. The probe begins to run through the LED review sequence (page 4.1).
4. Again, the batteries discharge and the probe ceases to function.
5. Again, the batteries recharge sufficiently to provide the probe with power and the sequence
repeats itself.
Page 31
5.1
Maintenance
Cleaning the probe
Wipe the window of the probe with a clean cloth
to remove machining residue. This should be
done on a regular basis to maintain optimum
transmission.
Maintenance
You may undertake the maintenance routines
described in these instructions.
Further dismantling and repair of Renishaw
equipment is a highly specialised operation,
which must be carried out at authorised
Renishaw Service Centres.
Equipment requiring repair, overhaul or attention
under warranty should be returned to your
supplier.
!
CAUTION: The OMP40-2 has a glass
window, handle with care if broken to
avoid injury
Page 32
OMP40-2 installation guide
5.2
Maintenance
Changing the batteries
1
2
!
CAUTIONS:
Do not leave exhausted batteries in probe.
When changing batteries, do not allow coolant or
debris to enter the battery compartment.
When changing batteries, check that the battery
polarity is correct.
Take care to avoid damaging the battery cassette
gasket.
Only use specified batteries (page 5.3).
NOTES:
After removing the old batteries, wait more than
5 seconds before inserting the new batteries.
Do not mix new and used batteries or battery
types, as this will result in reduced life and
damage to the batteries.
Always ensure that the cassette gasket and
mating surfaces are clean and free from dirt
before reassembly.
If dead batteries are inadvertently inserted into
the probe, the LEDs will remain a constant red.
CAUTIONS:
Please dispose of exhausted batteries in
accordance with local regulations.
Never dispose of batteries in a fire.
!
Page 33
5.3
Maintenance
3
4
5
½ AA Lithium Thionyl Chloride (3.6 V) x 2
Ecocel: EB1426
Saft: LS 14250C,
LS 14250
Tadiran: SL-750
Xeno: XL-050F
Dubilier: SB-AA02
Maxell: ER3S
Sanyo: CR 14250SE
Tadiran: SL-350, SL-550
TL-4902 TL-5902,
TL-2150, TL-5101
Varta: CR 1/2 AA
3
Battery type
Page 34
OMP40-2 installation guide
5.4
Maintenance
This page left intentionally blank
Page 35
6.1
Fault finding
Symptom Cause Action
Probe fails to power up
(no LEDs illuminated, or
fails to indicate current
probe settings)
Dead batteries
Wrong batteries
Batteries inserted incorrectly
Batteries removed for too short
a time and probe has not reset
Change batteries
Change batteries
Check battery insertion
Remove batteries for a minimum
of 5 seconds
Probe fails to switch-on
Wrong transmission mode
selected
Dead batteries
Wrong batteries
Batteries inserted incorrectly
Optical/magnetic interference
Transmission beam obstructed
Probe out of range/not aligned
with receiver
No receiver start signal
Reconfigure transmission mode
Change batteries
Change batteries
Check battery insertion
Check for interfering lights or
motors
Consider removing interfering
source
Check that OMP40-2 and
receiver windows are clean, and
remove any obstruction
Check alignment and if receiver
fixing is secure
Check start signal by reviewing
receiver start LED
Refer to relevant user’s guide
Page 36
OMP40-2 installation guide
6.2
Fault finding
Symptom Cause Action
Machine stops
unexpectedly during a
probing cycle
Optical communication
obstructed
Interface/receiver/machine fault
Dead batteries
False probe trigger
Probe unable to find target
surface
Adjacent probe
Check interface/receiver and
remove obstruction
Refer to interface/receiver/
machine user’s guide
Change batteries
Enable enhanced trigger filter
Check that part is correctly
positioned and that stylus has
not broken
Reconfigure to low power mode
and reduce range of receiver
Probe crashes
Length offset incorrect
Controller wired to respond to
tool setter instead of inspection
probe
Review offsets
Review installation wiring
Page 37
6.3
Fault finding
Symptom Cause Action
Poor probe
repeatability and/or
accuracy
Debris on part or stylus
Poor tool change repeatability
Loose probe mounting on
shank or loose stylus
Excessive machine vibration
Calibration out of date and/or
incorrect offsets
Calibration and probing speeds
not the same
Calibration feature has moved
Measurement occurs as stylus
leaves surface
Measurement occurs within
the machine’s acceleration and
deceleration zone
Probing speed too high or too
slow
Temperature variation causes
machine and workpiece
movement
Machine tool faulty
Clean part and stylus
Re-datum probe after each tool
change
Check and tighten as appropriate
Enable enhanced trigger filter
Eliminate vibrations
Review probing software
Review probing software
Correct position
Review probing software
Review probing software, probe
filter settings and stylus trigger
force
Perform simple repeatability trials at
various speeds
Minimise temperature changes
Perform health checks on machine
tool
Probe fails to
switch-off
Optical/magnetic interference
Probe out of range
Check for interfering lights or
motors
Consider removing the interfering
source
Check position of receiver
Increase receiver signal start range
Ensure window is clean
Review performance envelopes
Page 38
OMP40-2 installation guide
6.4
Fault finding
Symptom Cause Action
Probe fails to switch-off
(where optical off is
required)
Wrong switch-off mode selected
Optical/magnetic interference
Probe is inadvertently switchedon by the receiver when using
autostart
Probe out of range
Probe is regularly falsely
switched-on by light interference
Transmission beam obstructed
Reconfigure to optical off mode
Check for interfering lights or
motors
Consider removing the
interfering source
Check position of receiver
Reduce receiver signal strength
Review performance envelopes
Enable optical transmission
legacy mode (start filter on),
or consider upgrading to
modulated system.
Check that the probe and
receiver windows are clean,
and remove any obstruction.
Probe fails to switch-off
(where time out is
required)
Wrong switch-off mode is
selected
Probe placed in carousel when
in time out mode. Timer can be
reset by carousel activity
Reconfigure to time out mode
Ensure that carbon fibre stylus
is being used
Enable enhanced trigger filter
Shorten timeout setting
Consider use of optical on/
optical off setting
Probe goes into Trigger
Logic™ set up mode
and cannot be reset
Probe was triggered when
batteries were inserted
Do not touch the stylus during
battery insertion
Page 39
7.1
Parts list
Type Part number Descripion
OMP40-2 A-4071-0001 OMP40-2 probe with batteries, tool kit and Quick-start guide.
Optical on, set to: optical off/trigger filter off/legacy
transmission, start filter off/standard power.
OMP40-2 A-4071-0002 OMP40-2 probe with batteries, tool kit and Quick-start guide.
Optical on, set to: time off 134 sec/trigger filter off/legacy
transmission, start filter off/standard power.
OMP40-2 A-4071-2001 OMP40-2 probe with batteries, tool kit and Quick-start guide.
Optical on, set to: optical off/trigger filter off/Probe 1 start,
modulated transmission/standard power.
OMP40-2 A-4071-2002 OMP40-2 probe with batteries, tool kit and Quick-start guide.
Optical on, set to: time off 134 sec trigger filter off/Probe 1
start, modulated transmission/standard power.
OMP40-2LS A-4071-3001 OMP40-2LS probe with batteries, tool kit and Quick-start
guide. Optical on, set to: optical off/trigger filter off/Probe 1
start, modulated transmission/standard power.
Stylus A-5000-3709 PS3-1C ceramic stylus 50 mm long with Ø6 mm ball.
Batteries P-BT03-0007 1/2 AA Lithium thionyl chloride (LTC) batteries (pack of two).
Battery cassette A-4071-1166 OMP40-2 battery cassette kit.
Seal A-4038-0301 Seal for OMP40-2 battery cassette.
Tool kit A-4071-0060 Probe tool kit comprising: Ø1.98 mm stylus tool,
2.0 mm AF hexagon key and shank grubscrews (x6).
Stylus tool M-5000-3707 Tool for tightening/releasing styli.
Shank adaptor
assembly
A-4071-0031 Shank adaptor assembly for mounting to OMP60, RMP60,
MP700 type shanks.
Page 40
OMP40-2 installation guide
7.2
Parts list
Type Part number Descripion
OMI-2 A-5191-0049 OMI-2 complete with cable 8 m (26.25 ft) long.
OMI-2 A-5191-0050 OMI-2 complete with cable 15 m (49 ft) long.
OMI-2T A-5439-0049 OMI-2T complete with cable 8 m (26.25 ft) long.
OMI-2T A-5439-0050 OMI-2T complete with cable 15 m (49 ft) long.
OMI A-2115-0001 OMI complete with cable 8 m (26.25 ft) long.
OMM A-2033-0576 OMM complete with cable 25 m (82 ft) long.
Mounting
bracket
A-2033-0830 OMI-2/OMI-2T/OMI-2H/OMI/OMM mounting bracket with
fixing screws, washers and nuts.
MI12 A-2075-0142 MI12 interface unit.
PSU3 A-2019-0018 PSU3 power supply unit 85-264 V input.
Publications. These can be downloaded from our web site at www.renishaw.com
OMP40-2 A-4071-8500 Quick-start guide for rapid set-up of the OMP40-2 probe,
includes CD with OMP40-2 publications.
OMP40-2LS H-4071-8505 Addendum OMP40-2LS performance envelope.
Styli H-1000-3200 Catalogue Styli and accessories.
OMI-2 H-2000-5233 Installation and user's guide Optical machine interface.
OMI-2T H-5439-8502 Installation and user's guide Twin probe system optical
machine interface.
OMI H-2000-5062 Installation and user's guide Optical machine interface.
OMM H-2000-5044 Installation and user's guide Optical machine module.
MI12 H-2000-5073 Installation and user's guide MI12 interface unit.
PSU3 H-2000-5057 Installation and user's guide PSU3 power supply unit.
Software
features
H-2000-2289 Data sheet Probe software for machine tools - illustrated
features.
Software list H-2000-2298 Data sheet Probe software for machine tools - list of
programs.
Page 41
7.3
Parts list
Page 42
Renishaw plc
New Mills, Wotton-under-Edge,
Gloucestershire, GL12 8JR
United Kingdom
T +44 (0)1453 524524
F
+44 (0)1453 524901
E
uk@renishaw.com
www.renishaw.com
For worldwide contact details,
please visit our main website at
www.renishaw.com/contact
*H-4071-8504-03*
© 2009 Renishaw plc Issued February 2009 Part no. H-4071-8504-03-A
Loading...