Data sheet
H-5401-8200-01-A
OTS optical tool setter
www.renishaw.com/ots
The cableless OTS with optical signal transmission allows unrestricted machine motion and ease of installation on CNC machining centres.
Functions
• Setting tool lengths in Z.
• Setting rotating tools in X and Y for radius offsets.
• Tool breakage detection.
Features
• Measures wide range of tools
The OTS can measure large fly cutters, jobber drills and end mills for length and diameter.
• Adjustable optical module
The OTS optical module is adjustable for direction, with a range of up to 5 m (16.4 ft).
• Modulated transmission
Effects of light interference are reduced, which in some circumstances could cause false trigger signals.
• Probe repeatability
Repeatability, 1.0 µm 2σ (0.00004 in 2σ) is certified at
480 mm/min with a 35 mm stylus.
• Probe switch-on/switch-off
Probe switch-on/switch-off is by machine input.
• Battery life
A standard battery life of 290 hours continuous use, or the equivalent of over 130 days at 5% usage is achievable.
Battery life is increased when low power mode is selected.
• Probe sealing
The probe is sealed to IPX8 for the machine tool environment. The mechanism being protected from hot chips and coolant by an outer metal eyelid and inner flexible seal.
• Visible probe diagnostic LED
Provides on/off, seated/triggered and low battery status information.
• Optical receivers
Compatible with OMI-2T/OMI-2H/OMI-2 (modulated transmission).
• Styli
Disc stylus Ø12.7 mm (Ø0.5 in), and square stylus
19.05 mm × 19.05 mm (0.75 in × 0.75 in) are available.
The probe body is fully adjustable to enable all axes to be aligned with the machine’s axes.
• Stylus weak link
A weak link break stem protection device is incorporated in the stylus mounting, to protect the probe mechanism from damage in the event of excessive stylus overtravel or a collision.
A captive link secures the stylus to the probe if the break stem is broken.
• Machine mounting
The probe is mounted on the machine table using a cap head bolt and T nut (not supplied by Renishaw).
• Software for probe routines
The OTS is suitable for use with Renishaw tool setting cycles.
Data sheet
OTS probe system
Typical probe system
CNC machining centre spindle
Spindle probe for inspection
Systems with a spindle probe and a tool setting probe use modulated transmission
OMI-2T/OMI-2H/OMI-2
Stylus
Workpiece
Mounting bracket
CNC machine control
Cable
PSU3 Power supply unit
(optional)
OTS tool setter
Alternative orientations
Probe modes
The OTS probe can be in one of three modes:
1. Stand-by mode - The OTS is waiting for a switch-on signal to be received.
2. Operating mode - The OTS is ready for use in this mode, when activated by M code.
3. Configuration mode - The Trigger Logic TM configuration method allows the following settings to be configured.
Probe settings
Enhanced trigger filter
Probes subjected to high levels of vibration or shock loads may output signals without the stylus having being contacted. The enhanced trigger filter improves the probe’s resistance to these effects.
Low optical power
Where the separation between the OTS and the OMI-2T/
OMI-2H/OMI-2 is small, the low optical power setting may be used.
In this setting, battery life will be extended and the optical transmission range will be reduced as shown by white dotted lines on the performance envelopes.
Optical transmission start mode
With modulated mode, the OTS is compatible for use with the OMI-2T/OMI-2H/OMI-2, for high resistance to light interference.
The OTS operates using optical on/optical off mode, although a timer automatically switches the probe off after 90 minutes from the last trigger if not turned off optically, to preserve battery life.
Probe 1/Probe 2 start
The OTS is factory set to Probe 2 start for use with a spindle probe and OMI-2T/OMI-2H (twin probe).
One OTS is required to be set to Probe 1 start in a twin
OTS installation.
Probe 1 start is required for use with an OMI-2.
Performance envelope
The probe system should be positioned so that the signal transmission is maintained when the OTS is positioned below the machine spindle.
The OTS and OMI-2T/OMI-2H/OMI-2 may deviate from the optical centre line, provided opposing light cones always overlap, with transmitters and receivers in the other’s field of view (eye to eye).
Natural reflective surfaces within the machine may affect the signal transmission range.
Coolant residue, accumulating on the OTS or OMI-2T/
OMI-2H/OMI-2 windows will have a detrimental effect on transmission performance. Wipe clean as often as is necessary to maintain unrestricted transmission.
60°
75°
5 (16.4)
4 (13.1)
3 (9.8)
2 (6.5)
1 (3.3)
45°
30°
15°
OTS
75°
60°
0°
45°
30°
15°
0°
15°
30°
45°
60°
75°
OMI-2T/OMI-2H/OMI-2
15°
30°
1 (3.3
)
45°
2 (6.5)
3 (9.8)
4 (13.1)
5 (16.4)
75°
60°
Typical plot at 20° C (68° F)
Transmission around probe axis in metres (feet)
Range m (ft)
Switch on/off
Operating - standard power mode
Operating - low power mode
Data sheet
OTS probe system
Dimensions
67.8 (2.67) 44.7 (1.76) Disc stylus (shown)
Ø12.7 mm (Ø0.5 in)
Square stylus
19.05 × 19.05
(0.75 × 0.75) dimensions mm (in)
Ø51 (2.01)
Base
Machine table
Cap head bolt and T nut
ØM10/M12 (0.50) MAX supplied by user Ø62.5 (2.46)
Mounting
A cap head bolt and T nut provide adequate clamping in normal circumstances. However two dowel pins
(included in tool kit) may be fitted on installations where there is the requirement to remove and remount the OTS.
To fit the dowel pins, drill two holes in the machine table to correspond with the two probe base holes.
Achievable set-up tolerances
The achievable tolerance setting of tools depends upon the flatness and parallelism of the stylus tip setting. The probe can be adjusted to achieve parallelism along all faces of a square stylus. A value of 5 µm is easily achievable which is sufficient for the majority of tool setting applications.
Two holes for dowel pins
Ø54 (2.125)
Ø
6.13 (0.24)
5.95 (0.23) x 13 (0.51) deep MIN equi-spaced on Ø54 (2.125) PCD
at 45° to OTS axis
0°
15° 15°
30°
45°
30°
45°
The optical module can be set in one of seven positions at 15° increments, to allow the optical window to point towards the receiver.
Specification
✱ Valid as tested with a 35 mm straight stylus and a velocity of 480 mm/min at the centre of the stylus tip
Primary application
Sense directions
Overtravel
Stylus trigger force
Repeatability
Temperature
Sealing
Weight
Tool setter for machining centres
5 way ±X ±Y +Z
X/Y 3.5 mm (0.13 in)
Z 6 mm (0.24 in)
1.3 N to 2.4 N / 130 gf to 240 gf (4.6 ozf to 8.5 ozf) depending on sense direction
1 µm (0.00004 in).
Maximum mean 2 sigma (2σ) value ✱
Operating
Storage
+5 °C to 50 °C (41 °F to 120° F)
–10 °C to 70 °C (14 °F to 158 °F)
IPX8 (BS 5490, IEC 529) 1 atmosphere
900 g (31.74 oz) with batteries
Battery life
Typical battery life
Using the 1/2 AA lithium thionyl chloride (LTC) batteries at 5% usage, the probe will continue to operate for approximately one week after a low battery warning is first indicated. Replace the batteries as soon as possible.
After batteries are inserted into the OTS, the flashing
LED will indicate the current settings.
Low power mode should be used whenever possible for increased battery life.
Battery life
(1/2 AA Lithium Thionyl Chloride (3.6 V) x 2 )
Stand-by life
(typical)
Standard power mode
Low power mode
One year One year
5% usage = 72 minutes/day
(days - typical)
Standard power mode
Low power mode
130 140
Continuous use
(hours - typical)
Standard power mode
Low power mode
290 320
Probe status LEDs
LED colour Probe status
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 or flashing red
Battery dead
Flashing red or flashing red and green or sequence
(when batteries are inserted)
Unsuitable battery
Graphic hint
Renishaw plc
New Mills, Wotton-under-Edge,
Gloucestershire, GL12 8JR
United Kingdom
T +44 (0)1453 524524
F +44 (0)1453 524901
E [email protected]
www.renishaw.com
Parts list –
please quote the part number when ordering equipment
OTS
Type
Disc stylus
Square stylus
Break stem kit
Part no.
A-5401-2001
A-2008-0382
A-2008-0384
A-5003-5171
Description
OTS probe with disc stylus, batteries, tool kit and Quick-start guide.
Set to: optical on/optical off/filter off/Probe 2 start/standard power.
Disc stylus (tungsten carbide, 75 Rockwell C) Ø12.7 mm (Ø0.5 in).
Square tip stylus (ceramic tip, 75 Rockwell C)
19.05 mm x 19.05 mm (0.75 in x 0.75 in).
Stylus protection kit comprising: break stem (x 1), captive link (x 1), support bar (x 1), M4 screw (x 2), M4 grubscrew (x 3), hexagon keys: 2.0 mm (x 1), 3.0 mm (x 1) and spanner 5.0 mm (x 1).
Stylus holder kit
Batteries
Battery cap
Styli
Software features
Software list
A-2008-0389
P-BT03-0007
A-5401-0301
H-1000-3200
H-2000-2289
H-2000-2298
Stylus holder kit comprising stylus holder and screws.
1/2 AA batteries - Lithium thionyl chloride (pack of two).
OTS battery cap assembly.
Battery housing seal.
Seal
Tool kit
A-4038-0301
A-2008-1125 Tool kit comprising: break stem (x 1), captive link (x 2), support bar (x 1),
M4 screw (x 2), M4 grubscrew (x 3), spirol pin (x 2), hexagon keys: 2.0 mm
(x 1), 2.5 mm (x 1), 3.0 mm (x 1), 4.0 mm (x 1) and spanner 5.0 mm (x 1).
OMI-2T complete with cable 8 m (26.25 ft) long.
OMI-2T A-5439-0049
OMI-2T
Mounting bracket
A-5439-0050
A-2033-0830
OMI-2T complete with cable 15 m (49 ft) long.
OMI-2T/OMI-2H/OMI-2 mounting bracket with fixing screws, washers and nuts.
Publications. These can be downloaded from our web site at www.renishaw.com
OTS A-5401-8500 Quick-start guide - for rapid set-up of the OTS, includes CD with Installation guide.
Catalogue - Styli and accessories.
Data sheet Probe software for machine tools - illustrated features.
Data sheet Probe software for machine tools - lists programs.
OMI-2T
PSU3
A-5439-8500
H-2000-5057
Installation and user’s guide - OMI-2T.
Installation and user’s guide - PSU3 power supply unit.
A-2008-0384 A-2008-0382
For worldwide contact details, please visit our main web site at www.renishaw.com/contact
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.
© 2007 Renishaw plc. All rights reserved. Renishaw reserves the right to change specifications without notice Issued 11.07
*H-5401-8200-01*
Part no. H-5401-8200-01-A
