Renishaw RMI-Q User manual

RMI-Q radio machine interface
Installation guide
H-5687-8504-01-A (BETA SITE ONLY)

Renishaw part no: H-5687-8504-01-A
First issued: BETA SITE ONLY
© 2012 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.

i
Contents
Contents
Before you begin .................................................................................................... 1.1
Before you begin ............................................................1.1
Disclaimer ..............................................................1.1
Trademarks .............................................................1.1
Warranty................................................................1.1
Changes to equipment .....................................................1.1
CNC machines ...........................................................1.1
Care of the RMI-Q ........................................................1.1
RMP probe family.........................................................1.2
Patents .................................................................1.2
EC declaration of conformity ...................................................1.3
WEEE directive .............................................................1.3
FCC information to the user (USA only) ..........................................1.3
Radio approval .............................................................1.4
Radio equipment - Canadian warning statements ................................1.4
Radio approvals ..........................................................1.4
Safety ....................................................................1.5
RMI-Q basics........................................................................................................... 2.1
Introduction ................................................................2.1
Power supply ...............................................................2.1
Input voltage ripple........................................................2.1
RMI-Q visual diagnostics......................................................2.2
P1, P2, P3, P4 SYSTEM STATUS LEDs .......................................2.3
LOW BATTERY / START LED ...............................................2.3
PROBE STATUS LED .....................................................2.3
ERROR LED ............................................................2.3
SIGNAL LED ............................................................2.3

RMI-Q installation guide
ii
Contents
RMI-Q inputs ...............................................................2.4
RMI-Q output waveforms......................................................2.6
RMI-Q seated start option .....................................................2.7
Switches SW1 and SW2 ......................................................2.8
Switch SW1 output configuration .............................................2.8
Switch SW2 output configuration .............................................2.9
Remote external audible output ...............................................2.11
RMI-Q dimensions..........................................................2.12
RMI-Q specification.........................................................2.13
System installation................................................................................................. 3.1
Mounting bracket (optional)....................................................3.1
Wiring diagram (with output groupings shown) .....................................3.2
RMP - RMI-Q partnership .....................................................3.3
To partner the RMP with the RMI-Q...........................................3.3
To partner up to four RMPs with the RMI-Q without ReniKey .......................3.4
Partnering RMPs using ReniKey (Recommended) ...............................3.5
Removing the RMP from the RMI-Q ..........................................3.5
Changing RMP position ...................................................3.5
RMI-Q cable ...............................................................3.6
Cable sealing ............................................................3.6
Fitting flexible conduit......................................................3.6
Screw torque values .........................................................3.7
Maintenance............................................................................................................ 4.1
RMI-Q cover ...............................................................4.1
Removing the RMI-Q cover .................................................4.1
Replacing the RMI-Q cover .................................................4.2
Side exit to rear exit cable conversion ............................................4.2
Fault finding ............................................................................................................ 6.1
Parts list .................................................................................................................. 7.1

1.1
Before you begin
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 symbol used in the
RENISHAW logo are registered trade marks of
Renishaw plc in the United Kingdom and other
countries.
apply innovation and names and designations
of other Renishaw products and technologies are
trade marks of Renishaw plc or its subsidiaries.
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.
Unless otherwise specifically agreed in writing
between you and Renishaw, if you purchased the
equipment from a Renishaw company, the warranty
provisions contained in Renishaw’s CONDITIONS
OF SALE apply. You should consult these
conditions in order to find out the details of your
warranty, but in summary the main exclusions from
the warranty are if the equipment has been:
• neglected,mishandledorinappropriately
used; or
• modifiedoralteredinanywayexceptwiththe
prior written agreement of Renishaw.
If you purchased the equipment from any other
supplier, you should contact them to find out what
repairs are covered by their warranty.
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 RMI-Q
Keep system components clean.
Before you begin

RMI-Q installation guide
1.2
Before you begin
RMP probe family
The RMP family of probes currently consists of the
RMP40, RMP40M, RLP40, RMP60, RMP60M and
RMP600. The RTS radio tool setter also forms part
of Renishaw's family of radio transmission probes.
The term RMP used throughout this installation
guide refers to both the probes and the tool setter. CN 100466003
CN 101287958
CN 101482402A
EP 0652413
EP 1576560
EP 1931936
EP 2216761
IN 2004/057552
IN 2007/028964
IN 215787
JP 2009-507240
JP 3126797
JP 4575781
KR 1001244
TW 1333052
US 2011-00002361-A1
US 5279042
US 7665219
US 7821420
Patents
Features of the RMI-Q (and features of similar
products) are the subject of one or more of the
following patents and/or patent applications:

1.3
Before you begin
C
EC declaration of conformity
Renishaw PLC hereby declares that the RMI-Q is
in compliance with the essential requirements and
other relevant provisions of Directive 1999/5/EC.
Contact Renishaw at www.renishaw.com/rmi-q for
the full EC Declaration of Conformity.
WEEE directive
The use of this symbol on Renishaw products
and/or accompanying documentation indicates
that the product should not be mixed with
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 to save valuable resources
and prevent potential negative effects on the
environment. For more information, please contact
your local waste disposal service or Renishaw
distributor.
FCC information to the user
(USA only)
47 CFR Section 15.19
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.
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.
47 CFR 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.
47 CFR 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.

RMI-Q installation guide
1.4
Before you begin
Radio approval
Radio equipment - Canadian warning
statements
English
Under Industry Canada regulations, this radio
transmitter may only operate using an antenna of
a type and maximum (or lesser) gain approved for
the transmitter by Industry Canada.
To reduce potential radio interference to other
users, the antenna type and its gain should be so
chosen that the equivalent isotropically radiated
power (e.i.r.p.) is not more than that necessary for
successful communication.
This device complies with Industry Canada
licence-exempt RSS standard(s). Operation is
subject to the following two conditions: (1) this
device may not cause interference, and (2) this
device must accept any interference, including
interference that may cause undesired operation
of the device.
French
Conformément à la réglementation d'Industrie
Canada, le présent émetteur radio peut
fonctionner avec une antenne d'un type et d'un
gain maximal (ou inférieur) approuvé pour
l'émetteur par Industrie Canada.
Dans le but de réduire les risques de brouillage
radioélectrique à l'intention des autres utilisateurs,
il faut choisir le type d'antenne et son gain
de sorte que la puissance isotrope rayonnée
équivalente (p.i.r.e.) ne dépasse pas l'intensité
nécessaire à l'établissement d'une communication
satisfaisante.
Le présent appareil est conforme aux CNR
d'Industrie Canada applicables aux appareils
radio exempts de licence. L'exploitation est
autorisée aux deux conditions suivantes : (1)
l'appareil ne doit pas produire de brouillage,
et (2) l'utilisateur de l'appareil doit accepter
tout brouillage radioélectrique subi, même si le
brouillage est susceptible d'en compromettre le
fonctionnement.
Radio approvals
Europe: TBA
USA: TBA
Canada: TBA
Japan: TBA
China: TBA

1.5
Before you begin
Safety
Information to the user
In all applications involving the use of machine
tools or CMMs, 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.
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 the equipment installer
All Renishaw equipment is designed to comply
with the relevant 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, i.e. power transformers, servo drives
etc;
• all 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.
Equipment operation
If this equipment is used in a manner not specified
by the manufacturer, the protection provided by
the equipment may be impaired.

RMI-Q installation guide
1.6
Before you begin
This page left intentionally blank

2.12.1
Introduction
CNC machine tools which are using Renishaw
spindle probes with radio signal transmission
for workpiece inspection, or tool setters with
radio signal transmission, require a Renishaw
radio machine interface (such as the RMI-Q)
for signal transmission. The RMI-Q, which acts
as a combined radio transceiver and machine
interface, converts signals from the RMP into
voltage-free solid state relay (SSR) and driven
outputs for transmission to the CNC machine
controller.
The RMI-Q is designed to be mounted within
the machine’s working envelope.
Application of the RMI-Q enables individual
radio turn on and subsequent operation of up to
four separate 2nd generation RMPs, permitting
numerous combinations of radio inspection
probes and/or radio tool setters to be used on the
same machine tool.
RTS, and other 2nd generation RMPs, are easily
identified by a 'Q' marking. 1st generation RMPs,
which do not have the 'Q' marking, may also
be used with the RMI-Q. However, in machine
tool applications where more than one RMP
is required, it is recommended that only 2nd
generation RMPs are used. Should there be a
requirement to use a 1st generation RMP with the
RMI-Q, it is necessary that any additional probes
are 'Q' marked 2nd generation RMPs
RMI-Q basics
Optimum communication performance between
the RMI-Q and the RMP is achieved when the
RMI-Q is aligned towards the RMP in operation.
Other alignments are permissible with negligible
reduction in communication performance.
However, alignment of the RMI-Q away from the
RMP should be avoided as this may result in
reduced communication performance.
CAUTION RMI-Q operation of up to four
separate RMPs is different to 'multiple probe
mode' which is a function of the RMP that enables
individual application of multiple probes but does
not use radio turn on.
Power supply
The RMI-Q can draw its supply from the CNC
machine tool's 12 Vdc to 30 Vdc supply and
present a peak load of up to 250 mA during turn
on (typically 100 mA from 24 V).
Input voltage ripple
The input voltage ripple must not cause the
voltage to fall below 12 V or rise above 30 V.
!

RMI-Q installation guide
2.2
RMI-Q basics
RMI-Q visual diagnostics
A visual indication of system status is provided
by LEDs. Status is continuously updated and
indication is provided for:
•P1, P2, P3, P4 SYSTEM STATUS;
•LOW BATTERY/START;
•PROBE STATUS;
•SIGNAL CONDITION;
•ERROR;
SIGNAL LED
P1, P2, P3, P4 SYSTEM STATUS LEDs
LOW BATTERY / START LED
ERROR LED
PROBE STATUS LED
NOTES:
KEEP THE FRONT COVER CLEAN.
All four lower LEDs flashing
indicates a wiring fault or output
over-current.

2.3
RMI-Q basics
P1, P2, P3, P4 SYSTEM STATUS LEDs
Off - Probe number empty.
Yellow - Probe number full, in standby.
Green - Probe number full, operating.
Red - Probe number full, 0.5 s
compatibility error.
Yellow/off - Flashing: Selection error.
Green/yellow - Flashing: Acquisition/clearing
pending, full.
Green/off - Flashing: Acquisition pending,
empty.
Red/yellow - Flashing: Acquisition complete,
probe full.
Red/off - Flashing: Clearing complete,
probe empty.
LOW BATTERY / START LED
Off - Battery is OK and no M code
start/stop in progress.
Red - Battery is low.
Green - M code start/stop in progress.
Yellow - Battery low and M code
start/stop in progress.
Red/off - Flashing: RMI-Q has an
overcurrent condition.
PROBE STATUS LED
Red - Probe triggered.
Green - Probe seated.
Red/off - Flashing: RMI-Q has an
overcurrent condition.
ERROR LED
Off - No error.
Red - Error, other outputs may be
incorrect.
Red/off - Flashing: RMI-Q has an
overcurrent condition.
SIGNAL LED
Off - No probes operating.
Green - Good communications.
Green - yellow - Good communications.
Red - Poor communications, radio link
may fail.
Red/off - Flashing: RMI-Q has an
overcurrent condition.
NOTES:
The 'PROBE STATUS' LED is always illuminated
when power is present at the RMI-Q (as the
RMI-Q does not incorporate a separate ‘power
present’ indicator).
All LEDs report the status of the partner RMP. If
there is no partner in range, or the partner is off,
then the 'PROBE STATUS' and 'ERROR' LEDs
will illuminate red. The 'LOW BATTERY/START'
and 'SIGNAL' LEDs will be off.
When the RMI-Q is powered on it will enter
the acquire partner mode. This is indicated by
a flashing green 'SIGNAL' LED (no change in
outputs). After ~60 seconds it will switch to its
normal mode listening for its partner.
The conditions shown by the 'LOW BATTERY/
START', 'PROBE STATUS' and 'ERROR' LEDs
are the same as those present on the electrical
signal outputs.

RMI-Q installation guide
2.4
RMI-Q basics
RMI-Q inputs
Machine start inputs (P1, P2, P3, P4):
'Machine start' inputs are configurable as a level
or pulsed signal.
Level 10 to 30 V (2.4 mA at 24 V)
When input is active, probe is
switched on.
Pulsed 12 to 30 V (10 mA at 24 V)
Probe toggles from being switched on/
off. The minimum pulse width is 10 ms.
P1 machine start wires (white +ve and brown -ve).
P2 machine start wires (pink +ve and brown -ve).
P3 machine start wires
(white/red +ve and brown -ve).
P4 machine start wires
(white/blue +ve and brown -ve).
RMI-Q outputs
There are five outputs:
•Probe status 1 (SSR).
•Probe status 2a
(5 V isolated driven skip).
•Probe status 2b
(driven at power supply voltage).
• Error (SSR).
• Low battery (SSR).
All outputs can be inverted by using switches SW1
and SW2 - see page 2.8 'Switches SW1 and
SW2'.
Probe status 1, Error, Low battery (SSR):
•‘On’ resistance = 50 ohm max.
•Load voltage = 40 V max.
•Load current = 100 mA max.
Probe status 2a (5 V isolated driven skip):
•Load current = 50 mA max.
Output voltages
• Sourcing = 4.2 V min at 10 mA.
= 2.2 V min at 50 mA.
• Sinking = 0.4 V max at 10 mA.
= 1.3 V max at 50 mA.
Probe status 2b (driven at power supply
voltage):
•Load current = 50 mA max.
Output voltages
• Sourcing voltage drop
= 2.6 V max at 10 mA.
= 3.5 V max at 50 mA.
• Sinking voltage drop
= 2.0 V max at 10 mA.
= 2.9 V max at 50 mA.
The 'LOW BATTERY/START', 'PROBE STATUS',
'ERROR' and 'SIGNAL' LEDs will start flashing
red when an output overload has occurred. All
outputs will be switched off. If this occurs, turn off
the power supply and remove the source of the
problem. Turning on the power supply will reset
the RMI-Q.

2.5
RMI-Q basics
!
CAUTIONS:
Power supply voltage
Do not exceed 30 V between the black wire and
the screen wire (green/yellow), or the red wire
and screen wire (green/yellow), or the red and
black wires (power supply), as this could result
in permanent damage to the RMI-Q and/or the
customer power supply.
The use of in-line fuses at the machine cabinet
end is recommended to provide protection for the
RMI and cable.
Screen connection
A good connection must be made to machine
ground (star point).
Output stage circuit
Output stage supplies (+ve, –ve) should not be
switched on and off to enable/disable them as this
can cause the over current protection to switch off
the output completely.
Ensure that outputs from the RMI-Q do not
exceed specified current ratings.

RMI-Q installation guide
2.6
RMI-Q basics
RMI-Q output waveforms
RMI-Q
SSR/driven
output
Probe status 1
(level)
Probe status 1
(pulsed)
Normally open
Normally open
PROBE
SSR open
SSR open
SSR closed
SSR closed
Power
off
Probe
switch
on
Seated
Probe
trigger
Triggered Seated
Probe
reseat
Error
e.g.
low signal
Low
battery
Probe
switch
off
PROBE
RMI-Q
SSR /driven
outputs Probe
switch
on
Seated
Probe
trigger
Triggered Seated
Probe
reseat
Error
clear
Error
e.g.
low signal
Low
battery
Probe
switch
off
Probe status
2a/2b
(level)
Normally low
Output high
SSR open
SSR closed
Error
Normally
closed
Error
clear
Power
off
Low battery
Normally open
SSR open
SSR closed
Output low
Probe status
2a/2b
(pulsed)
Normally low
Output high
Output low
SIGNAL DELAYS
1. Transmission delay Probe trigger to output change of state ≈ 10 ms variation ±10 µs.
(Standard turn on mode exluding filter delay)
2. Start delay Time from initiation of start signal to valid signal transmission = 1 sec max.
NOTE : Pulsed outputs are 40 ms ±1 ms duration.

2.7
RMI-Q basics
RMI-Q seated start option
RMI-Q
SSR/driven
output
Probe status 1
(level)
Probe status 1
(pulsed)
Normally open
Normally open
PROBE
SSR open
SSR open
SSR closed
SSR closed
Power
off
Probe
switch
on
Probe
trigger
Triggered Seated
Probe
reseat
Error
e.g.
low signal
Low
battery
Probe
switch
off
SSR open
SSR closed
Error
Normally
closed
Error
clear

RMI-Q installation guide
2.8
RMI-Q basics
Switches SW1 and SW2
Switch SW1 output configuration
SW1 SW2
NOTE: To gain access to
the switches, remove the
front cover (see Section 4,
'Maintenance').
Factory settings are shown.
Pulsed N/O
PROBE STATUS 1 Low
battery
N/O
Error
N/O
N/CN/C
N/C
Level
ON
CAUTION: Exercise caution when using error or probe SSR in N/O mode as a wiring
fault could cause loss of error condition and therefore could result in a non-failsafe condition.
!
Abbreviations are as follows:
•N/O = Normally Open
•N/C = Normally Closed

2.9
RMI-Q basics
Pulsed Normally
high
PROBE STATUS 2a/2b
Level
Dedicated
start
Seated
start on
Seated
start off
0.5 s
turn on
Standard
turn on
Common
start
Pulsed
Level
MACHINE START
Normally
low
Switch SW2 output configuration
Factory settings are shown.
ON
Dedicated start (level mode)
In dedicated start, a machine start input is
required per probe that is configured for radio turn
on.
Machine start inputs Probe selected
P1 P2 P3 P4
None
QProbe 1 on
QProbe 2 on
QProbe 3 on
QProbe 4 on
Q Machine start input active. Any attempt to turn on more
than one probe simultaneously will result in an error
condition
NOTES :
Level start mode is not compatible with RMPs
configured for radio M code on/time out off.
For RMI compatibility mode, ensure poles 4 and 6
are in the down position and set other poles to the
required configuration.

RMI-Q installation guide
2.10
RMI-Q basics
Common start (level mode)
In common start (level mode), machine start
inputs P2 and P3 are used to select the probe
and machine start input P1 is used to start the
selected probe. All inputs are level.
Machine start inputs
P1, P2 and P3
Probe
selected
Probe
start
P1
Probe selection
inputs
P2 P3
QProbe 1
Q Q Probe 2
Q Q Probe 3
QQQProbe 4
Q Machine start input active.
When P1 is off, all probes are off.
When P1 is active, the selected probe will be on.
NOTES:
Machine start input P4 is not used in common
start.
Any change to the probe selection inputs P2 and
P3 whilst the probe is operating will result in an
error condition.
Level start mode is not compatible with RMPs
configured for radio M code on/time out off.
Common start (pulsed mode)
In common start (pulsed mode), machine start
inputs P2 and P3 are level inputs used to select
the probe. Machine start input P1 is a pulsed input
used to start the selected probe.
Machine start inputs
P1, P2 and P3
Probe
selected
Probe
start
P1
Probe selection
inputs
P2 P3
Probe 1
QProbe 2
QProbe 3
Q Q Probe 4
Machine start input pulsed, so selected probe will
change state.
Q Probe selection inputs are level signals.
NOTES:
Machine start input P4 is not used in common
start.
Only the probe start signal P1 will be pulsed and
will change the probe status between on and off.
The probe selection inputs P2 and P3 will be level.
Seated start on
When seated start on is selected, the RMI-Q will
not drop the error line until the RMP has become
seated. This provides compatibility with controllers
that regard the RMP to be in error if it is started in
a triggered condition.
0.5 second turn on
0.5 second turn on provides compatibility with
controllers that have quicker response times, to
give a reduced probing cycle time. Standard turn
on time is 1 second. These turn on times apply to
radio M code on only.