Renishaw PI 7-3 Installation Manual
PI 7-3 installation guide
Documentation part number: H-1000-7555-02-D
PI 7-3 installation guide
www.renishaw.com
Issued 08 2019
1
General information
© 2003 ‐ 2019 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.
The publication of material within this document does not imply freedom from the patent rights of Renishaw plc.
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 is a trademark of Renishaw plc.
All brand names and product names used in this document are trade names, service marks, trademarks, or registered trademarks of their
respective owners.
All trademarks and trade names are acknowledged.
WEEE
The use of this symbol on Renishaw products and/or accompanying documentation indicates that the product should not be mixed with the
general household waste upon disposal. It is the responsibility of the end user to dispose of this product at a designated collection point for
waste electrical and electronic equipment (WEEE) to enable reuse or recycling. Correct disposal of this product will help save valuable
resources and prevent potential negative effects on the environment. For more information, please contact your local waste disposal service
or Renishaw distributor.
Warranty
Renishaw plc warrants its equipment for a limited period (as set out in our Standard Terms and Conditions of Sale) provided that it is installed
exactly as defined in associated Renishaw documentation.
Prior consent must be obtained from Renishaw if non-Renishaw equipment (e.g. interfaces and/or cabling) is to be used or substituted. Failure
to comply with this will invalidate the Renishaw warranty.
Claims under warranty must be made from authorised service centres only, which may be advised by the supplier or distributor.
PI 7-3 installation guide
www.renishaw.com
Issued 08 2019
2
Care of equipment
Renishaw probes and associated systems are precision tools used for obtaining precise measurements and must therefore be treated with
care.
Changes to Renishaw products
Renishaw reserves the right to improve, change or modify its hardware or software without incurring any obligations to make changes to
Renishaw equipment previously sold.
Packaging
To aid end user recycling and disposal the materials used in the different components of the packaging are stated here:
Packaging component Material 94/62/EC code 94/62/EC number
Outer box Corrugated fibreboard PAP 20
Packaging insert Polyurethane PU 7
Packing foam Polyurethane PU 7
Bag Low density Polyethylene LDPE 4
PI 7-3 installation guide
www.renishaw.com
Issued 08 2019
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Product compliance
EU declaration of conformity
Contact Renishaw plc or visit www.renishaw.com/EU for the full EU declaration.
FCC (USA only)
Information to user (47 CFR 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.
Information to user (47 CFR 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.
Equipment label (47 CFR 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 must accept any interference received, including interference that may cause undesired operation.
REACH regulation
Information required by Article 33﴾1﴿ of Regulation ﴾EC﴿ No. 1907/2006 ﴾“REACH”﴿ relating to products containing substances of very high
concern (SVHCs) is available at:
www.renishaw.com/REACH
China RoHS
Contact Renishaw plc or visit www.renishaw.com/ChinaRoHS for the full China RoHS tabulation.
PI 7-3 installation guide
www.renishaw.com
Issued 08 2019
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Safety
If the equipment is used in a manner not specified by the manufacturer, the protection provided by the equipment may be impaired.
There are no user serviceable parts inside the equipment.
The PI 7-3 probe interface is to be used with the provided PSU - Emerson DP4024N3M. See manufacturer's datasheet at www.emerson.com
PSU electrical ratings
Supply voltage 100 V to 240 Vac +10%, -10%
Frequency range 50 Hz to 60 Hz
Power consumption 6 W max
Transient voltages Installation category II
NOTE: For PI 7-3 controller ratings refer to section 'Power supply'.
The PI 7-3 is isolated from ac power by disconnection of the IEC mains connector from the supplied PSU. If any additional means of isolation
is required , it must be specified and fitted by the machine manufacturer or installer of the product. The isolator / disconnection device must
be sited within easy reach of the operator and comply with any applicable national wiring regulations for the country of installation.
PI 7-3 installation guide
www.renishaw.com
Issued 08 2019
5
Environmental conditions
The following environmental conditions comply with those defined in BS EN61010-1:2001:
Indoor use IP30 (no protection against water)
Altitude Up to 2000 m
Operating temperature 0 °C to +50 °C
Storage temperature ‐10 °C to +70 °C
Relative humidity 80 % maximum for temperatures up to +31 °C.
Linear decrease to 50 % at +50 °C
Pollution degree 2
PI 7-3 installation guide
www.renishaw.com
Issued 08 2019
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Introduction
The PI 7-3 is a dedicated signal conditioner for interfacing the TP7M series of probes or touch-trigger probe types such as TP2, TP20 or TP6 /
TP6A, to the CMM controller.
PI 7-3 interface unit - A-5726-0100
PI 7-3 integrated card option - A-5726-0200
PI 7-3 installation guide
www.renishaw.com
Issued 08 2019
7
Product description and pin outs
Technical description
The PI 7-3 automatically recognises the probe type, determines the probe status, which is either triggered or seated (armed), and transmits
debounced signals to the CMM controller. Status and control signals are transferred between the PI 7-3 interface, other Renishaw equipment
and the CMM controller via the product interconnection system (PICS) ports.The TP7M probe series employ silicon strain sensors to detect the
small gauging forces applied to the stylus tip. There is no electronic processing in the probe and the sensors are connected directly to the
interface via the Renishaw autojoint connector, the probe head and associated wiring. The sensor signals are amplified and the resultant
‘probe signals', proportional to changes of strain, are compared with reference voltages to determine the status of the probe.
The initial value of strain in the sensor structure will vary with the mass of the stylus and the orientation of the probe. At switch-on or
following re‐orientation of the probe on a movable head, a process known as ‘autozero' is used to rapidly null the strain to a zero reference
level.
When the stylus contacts the workpiece, a change of strain occurs in the probe structure causing the probe signal voltage to exceed the trigger
reference level. A probe trigger signal condition occurs by asserting SYNC on the PICS port. As stylus deflection increases, the probe signal
voltage will exceed the halt reference level and HALT will be asserted on the PICS port. When the stylus backs-off the workpiece, the probe
signal falls below the reference levels; SYNC and HALT are cleared to the seated state and the sensor outputs are nulled to the zero reference
level in preparation for the next trigger. Debounce timers allow the motion characteristics to stabilise after the initial trigger and reseat events,
to prevent spurious switching.
A solid state relay (SSR) equivalent of the SYNC output is provided for controllers requiring a voltage free contact at their probe input.
There is a choice of two levels of trigger sensitivity to allow the TP7M series to be used on a wide range of CMM types or in situations where
the ambient vibration levels are not ideal.
PI 7-3 installation guide
www.renishaw.com
Issued 08 2019
8
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