Renishaw TRS2 User manual

#renishaw
TRS2 non-contact broken tool detection
system
www.renishaw.com/trs2
Installation guide

Compliance information for this product is available by scanning the QR code or visiting
www.renishaw.com/mtpdoc

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www.renishaw.com/trs2
Contents
Before you begin ...................................................................1-1
Warranty ...........................................................................1-1
CNC machines ......................................................................1-1
Care of the system ...................................................................1-1
Patents ............................................................................1-1
Software notices .....................................................................1-2
US government notice ...........................................................1-2
Renishaw software EULA.........................................................1-2
Intended use........................................................................1-2
Safety .............................................................................1-3
Information to the user ...........................................................1-3
Information to the machine supplier/installer ..........................................1-3
Information to the equipment installer ...............................................1-3
Equipment operation ............................................................1-3
Warnings ..........................................................................1-4
TRS2 basics .......................................................................2-1
Introduction.........................................................................2-1
Software routines ....................................................................2-1
Status indicator......................................................................2-1
Signal strength indication ..............................................................2-2
TRS2 typical performance .............................................................2-2
Dimensions of hard-wired TRS2 units and laser warning labels ................................2-3
Dimensions of TRS2 units with connector .................................................2-4
TRS2 specication ...................................................................2-5
System installation..................................................................3-1
Mounting the TRS2...................................................................3-1
Introduction....................................................................3-1
Mounting location guidelines ......................................................3-1
Mounting congurations ..........................................................3-2
Air supply ..........................................................................3-3
Air pressure ........................................................................3-3
Connecting and purging the air supply....................................................3-4
Air blast pack .......................................................................3-6
Electrical connections.................................................................3-7
Power supply ..................................................................3-7
Setting up the TRS2 system............................................................3-8

ii TRS2 non-contact broken tool detection system
Preparation....................................................................3-8
Range setting .................................................................3-8
Spindle speed selection .........................................................3-10
Determining the checking position .................................................3-10
Using the signal monitor function ..................................................3-12
Maintenance .......................................................................4-1
Introduction.........................................................................4-1
Guidelines ....................................................................4-1
About cleaning .................................................................4-1
Equipment required .............................................................4-1
Cleaning the system.............................................................4-2
Replacing the receiver lens .......................................................4-3
Fitting a sapphire glass window ....................................................4-4
Maintenance – air preparation pack ......................................................4-5
Removing and retting lter elements ...............................................4-5
Fault-nding .......................................................................5-1
Parts list ..........................................................................6-1

1-1
www.renishaw.com/trs2
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 ofce.
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 dened 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 system
Keep system components clean and treat the unit as a precision tool.
Patents
Features of TRS2 non-contact broken tool detection system, and other similar Renishaw products, are the
subject of one or more of the following patents and/or patent applications:
CN 100569442
EP 1799398
JP 4764427
SG 130252
TW 1415708
US 7732797
US 8537359

1-2 TRS2 non-contact broken tool detection system: Before you begin
Software notices
This product includes embedded software (rmware) to which the following notices apply:
US government notice
NOTICE TO UNITED STATES GOVERNMENT CONTRACT AND PRIME CONTRACT CUSTOMERS
This software is commercial computer software that has been developed by Renishaw exclusively at
private expense. Notwithstanding any other lease or licence agreement that may pertain to, or accompany
the delivery of, this computer software, the rights of the United States Government and/or its prime
contractors regarding its use, reproduction and disclosure are as set forth in the terms of the contract
or subcontract between Renishaw and the United States Government, civilian federal agency or prime
contractor respectively. Please consult the applicable contract or subcontract and the software licence
incorporated therein, if applicable, to determine your exact rights regarding use, reproduction and/or
disclosure.
Renishaw software EULA
Renishaw software is licensed in accordance with the Renishaw licence at:
www.renishaw.com/legal/softwareterms
Intended use
TRS2 is a laser-based non-contact tool recognition system that provides high-speed tool breakage
detection of solid cutting tools on a machining centre under normal operating conditions.

1-3
www.renishaw.com/trs2
Safety
Information to the user
In all applications involving the use of machine tools, eye protection is recommended.
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 TRS2 unit fails, the output signal may falsely indicate beam not blocked. Do not rely on signals from
the TRS2 unit 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 unit 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 specied by the manufacturer, the protection provided by the
equipment may be impaired.

1-4 TRS2 non-contact broken tool detection system: Before you begin
Warnings
Use of controls or adjustments or performance of procedures other than those specied within this
publication may result in hazardous radiation exposure.
Switch off electrical power to the TRS2 before carrying out maintenance.
When using the TRS2 system, basic safety precautions must always be followed to reduce the risk of re,
electric shock and personal injury, including the following:
• Read all instructions before operating this product.
• The device must only be installed and used by competent, trained personnel.
• Use eye protection to protect against mechanical hazards, coolant and swarf.
• Avoid inhalation of coolant vapour from the machine tool.
• Do not block the air exiting from the TRS2 access panel.
• Prevent direct exposure of the eyes to the laser beam.
• Ensure that the beam is not reected into the eyes via any reective surface.
• Prevent the laser beam from straying outside of the immediate work area. A laser warning sign/beam
terminator is supplied with the TRS2, which may be xed to the outside of the machine window for this
purpose.
CAUTION – LASER SAFETY
The laser used in the Renishaw TRS2 non-contact broken tool detection system emits visible red light at
a wavelength of 670 nm and has a power output of less than 1 mW. The laser is driven by a continuous
pulse train running at a frequency of 125 kHz. The pulse duration is 2 μs and each pulse has a maximum
energy of 7.2 × 10-9 J.
The laser used is classied as a Class 2 product as dened by BS EN 60825-1:2014.
Complies with 21 CFR 1040.10 and 1040.11 except for conformance with IEC 60825-1 Ed.3., as
described in Laser Notice No.56, dated May 8, 2019.
The standard BS EN 60825-1:2014 directs to attach a laser warning label and explanatory label.
A warning label and explanatory label are permanently xed to one side of the housing, for more
information, see page 2-3, “TRS2 dimensions and laser warning labels”. An adhesive warning label is
also provided. Renishaw advise attaching this label to the outside of the machine tool, in a visible location.

2-1
www.renishaw.com/trs2
TRS2 basics
Introduction
This guide describes how to install and maintain the Renishaw TRS2 non-contact broken tool detection
system.
The TRS2 is a laser-based non-contact broken tool detection system that is designed specically for solid
centred tools; such as drills and taps. A tool that is rotating at a speed of 5000 r/min, 1000r/min or
200r/min is moved into the laser beam. The TRS2 output changes when a useable tool is detected by the
receiver. If a tool is broken, the output will not change and the system will not trigger.
Two types of TRS2 are available; hard-wired and connectorised. The connectorised version has a 90°
socket tted to the underside and electrical connections to the machine controller are made via a cable
connector assembly. This method allows quick and easy removal of the TRS2 from its mounting location
and replacement with a similar unit.
The hard-wired version does not have a connector socket; electrical connections to the machine controller
are hard-wired directly to the TRS2.
Both versions of the TRS2 can be adjusted to detect a broken tool over the range of 300 mm (11.81 in) to
2 m (78.74 in).
For reliable detection of a tool with through-tool coolant, the ow of coolant must be stopped before
checking the tool. For all tools, the ow of coolant off the surface of the tool must be stopped before
reliable detection can be carried out.
NOTE: Removing the TRS2 side panel or tampering with the side panel retaining screw will invalidate the
warranty.
Software routines
Examples of programs for high-speed broken tool detection of solid tools are available for a wide range of
machine controller types. A TRS2 software package is available for download from
www.renishaw.com/trs2
Status indicator
The status LED on the front of the TRS2 indicates the status of the unit to the user.
NOTE: The tool must be rotating at a speed of 5000 r/min, 1000 r/min or 200 r/min, at the checking point
in the laser beam, for it to be detected.
LED colour Status
Not lit Power off
Red Broken tool or no tool
Green Good tool detected

2-2 TRS2 non-contact broken tool detection system: TRS2 basics
Signal strength indication
Multiple LED’s on the front of the TRS2 unit provide an indication of the signal strength. The minimum
requirement for effective tool detection is that the amber LED and at least one green LED are illuminated.
TRS2 typical performance
The TRS2 is designed to function over a 300 mm (11.81 in) to 2 m (78.74 in) range, although it is
optimised for use at 1 m (39.37 in) or less. At the minimum distance of 300 mm (11.81 in), the TRS2 can
detect a solid centred tool that has a diameter of 0.2 mm (0.008 in) or greater. At 1 m (39.37 in) distance, a
2 mm (0.08 in) diameter or larger tool can be detected.
For a tool to be detected, sufcient light must be reected back to the TRS2. Before running the broken
tool cycle, ensure that each tool can be detected by the TRS2 system. The following factors affect the tool
detection capabilities (particularly if the range is greater than 1 m (39.37 in) or the tool diameter is less
than 2 mm (0.08 in)):
• Colour of the tool.
• Geometry and surface nish of the tool.
• Range.
• Machine environment.
• Installation.
IMPORTANT: Remember that excess coolant must always be cleared from the tool before detection is
carried out.
Signal strength indicators
(align the TRS2 to
illuminate the highest
number).