Renishaw TONiC FS T40x1, TONiC RESM20 Functional Safety Manual

Installation guide

M-6688-9043-02-B

TONiC™ FS T40x1 RESM20 angle encoder system

RSLM high accuracy linear encoder

Functional Safety installation guide and safety manual

Contents

Product compliance 1

Denitions 2

Information for use 2

Functional Safety data declaration 2

Safety function 3

Certication 4

Storage and handling 5

TONiC FS T40x1 readhead installation drawing 6

RESM20 installation drawing (‘A’ section) 7

RESM20 installation drawing (‘B’ section) 8

System connection – DOP interface 14

T40x1 readhead and RESM20 compatibility 15

Readhead mounting and alignment 16

System calibration 17

Diagnostic LEDs 18

Output signals 19

Speed 20

Electrical connections 21

Outputspecications 22

Generalspecications 23

Select a mounting option 9

Taper mount method 9

Interferencetmethod 11

TONiC FS quick-start guide 12

Cable connection 13

System connection – Ti interface 13

TONiC RESM20 Functional Safety installation guide and safety manual Original instructions

Ringtechnicalspecications 23

TONiC Ti interface drawing 24

TONiC DOP interface drawing 24

Product compliance

This document is an installation guide and safety manual, which details the actions required for the safe

integration of the TONiC FS (Functional Safety) encoder system, as designated by the T4 prex in the part

number, into a functionally safe system; this will be referred to as TONiC FS system in the below document.

SIL2

FUNCTIONAL

SAFETY

PLd

The TONiC FS system as dened below is suitable for use in a Category 3 performance leveld(PLd)
application in compliance with ISO13849 and in a safety integrity level 2 (SIL2) application in compliance
with IEC61508 and IEC61800-5-2 when installed and operated in accordance with the instructions dened.

Failure to follow the correct use instructions or heed the limitations may result in SIL2 and/or PLd

notbeingachievedandwillinvalidatetheFunctionalSafetycertication.

A copy of the TONiC FS certicate is available from our website at www.renishaw.com/productcompliance.

C

Renishaw plc declares that TONiC FS system complies with the applicable standards and regulations.

A copy of the EU declaration of conformity is available from our website at

www.renishaw.com/productcompliance.

For further details of FS compliance see ‘Certication’ on page 4.

FCC compliance

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, and (2) this device must accept any interference
received, including interference that may cause undesired operation.
The user is cautioned that any changes or modications not expressly approved by Renishaw plc or
authorised representative could void the user’s authority to operate the equipment.
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 the user will be required to correct the

interference at their own expense.

NOTE: This unit was tested with shielded cables on the peripheral devices. Shielded cables must be used

with the unit to ensure compliance.

Patents

Features of Renishaw’s encoder systems and similar products are the subjects of the following patents and
patent applications:

EP0748436 US5861953 EP1173731 US6775008B2 JP4750998

CNCN100543424C US7659992 JP4932706 CNCN100507454C US7550710
EP1766335 CNCN101300463B EP1946048 US7624513B2 JP5017275
CNCN101310165B US7839296 EP1957943 US6481115 IL138995
EP1094302 CN1293983 GB2397040 JP4813018 US7723639
CN1314511 EP1469969 JP5002559 US2005045586

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.

The packaging of our products contains the following materials and can be recycled.

Packaging Component Material ISO 11469 Recycling Guidance

Outer box Cardboard Not applicable Recyclable

Polypropylene PP Recyclable

Inserts Low Density Polyethylene Foam LDPE Recyclable

Cardboard Not applicable Recyclable

Bags High Density Polyethylene Bag HDPE Recyclable

Metalised Polyethylene PE Recyclable

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

Further information

Further information relating to the TONiC FS encoder range can be found at

www.renishaw.com/safety-encoders and is also available from your local representative. 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 written prior permission of Renishaw. The publication of material within this document
does not imply freedom from the patent rights of Renishaw plc.

TONiC RESM20 Functional Safety installation guide and safety manual Original instructions

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.

1

Denitions

Functional Safety data declaration

WARNING A hazard with a medium risk of injury if not avoided

ESD handling

Mechanical safe position

Evaluation unit

System manufacturer

System installer

Information for use

The ESD Susceptibility Symbol consists of a triangle, a reaching hand, and a slash
through the reaching hand. The triangle means ‘Caution’ and the slash through the
reaching hand means ‘Don’t touch’.

The maximum distance the scale might move from its installed position, for example if
the xings work loose.

External item of equipment in which the output signal of the encoder is evaluated,

e.g. machine controller or safety relay.

Personnel with responsibility for selecting the encoder and verifying its capability is

appropriate for the safety related application.

Personnel with responsibility for tting the encoder in the specic application.

WARNING Not to be used in environments where there is an explosive atmosphere
WARNING Not to be used by medical devices

The TONiC FS system is designed to be used as part of a safety-related control system as specied by the system
manufacturer. It is the responsibility of the system manufacturer to set the evaluation unit to implement the appropriate

actions when the TONiC FS system reports an error. The decision to use this system for the intended purpose is the

responsibility of the system manufacturer. The TONiC FS system is certied to the SIL and PL levels as shown in the
‘Functional Safety data declaration’, however the system manufacturer must conduct their own assessment of the full

system to determine its safety capability.

Correct use includes:

X Operating the TONiC FS system within the limits dened in this document.
X Installing the system as described in this document.
X Maintaining the system as described in this document.

System components:

The TONiC FS system comprises the following parts:

X TONiC FS readhead.
X TONiC Ti0000A00A or DOP interface.
X RESM20 ‘A’ section or ‘B’ section ring.

NOTES:

X Rings retained by interference t only (unbolted) are not approved for use with the TONiC FS encoder system.

X Only the analogue sine and cosine outputs are functionally safe.

If the original termination supplied with the TONiC FS system is altered or an extension cable used, then it is the
responsibility of the system manufacturer to make sure the system is compliant with IEC 61800-5-2 Annex E

–Electromagneticimmunityrequirementforsafetyrelatedsystems.

Productidentication TONiC FS (Functional Safety)

IEC61508safetydata

TONiC

readhead

Safety integrity level 2

Random hardware
failures (per hour)

PFD

avg

l

l

l

l

1.77 × 10

S

8.41 ×10

D

7.57 × 10

DD

8.41 × 10

DU

Not available as this system does not support low

PFH (per hour) 8.41 × 10

Architectural
constraints

Type B

HFT 0

−7

−8

−8

−9

−9

SFF 96%

Hardware safety integrity
compliance

Systematic safety integrity
compliance

Systematic capability SC 2

Demand mode Continuous

TONiC

readhead and

Ti interface

1.77 × 10

1.38 × 10

1.25 × 10

1.38 × 10

demand mode

1.38 × 10

Route 1H

Route 1S

ISO13849safetydata

TONiC

readhead

MTTF

(years) 1300 800 300

D

Diagnostic coverage Medium (90%)

Category 3

Performance level d

Lifetime/replacement limits 20

TONiC

readhead and

Ti interface

−7

−7

−7

−8

−8

TONiC
readhead and
DOP interface

1.77 × 10

3.49 × 10

3.14 × 10

3.49 × 10

3.49 × 10

−7

−7

−7

−8

−8

TONiC
readhead and
DOP interface

TONiC RESM20 Functional Safety installation guide and safety manual Original instructions

2

Safety function

The TONiC FS system provides 1 Vpp (nominal) sine and cosine outputs, where the sine and cosine
outputs are 90° phase shifted, in order for the evaluation unit to perform incremental counting and

therebyconrmmachinepositioniswithinsafelimits.

The following restrictions apply to this claim:

X The system installer must perform a veried commissioning test during installation.

X The system repairer must perform a veried commissioning test following replacement of a system part.

X When installed correctly, the TONiC FS system shall have mechanical safe position not exceeding 2.5°.

NOTE: Thermal expansion effects of the scale and readhead mounting tolerances are excluded from the

mechanical safe position.

X The TONiC FS system includes no self-diagnostic function.

NOTE: Faults are detected only by the evaluation unit monitoring. When errors are detected it is the
responsibility of the system manufacturer to place the system into a safe state.

Fault exclusions

The following will invalidate the Functional Safety certication of the TONiC FS system (see page 4):

X Faults caused by cutting and reconnecting the readhead cable or extending the readhead cable.

X Incorrect installation of the readhead.

X Incorrect installation of the scale.

X Dismantling of the TONiC readhead or the Ti or DOP interfaces.

X Operating the system outside of the limits specied within this installation guide.

Failure modes

Failure modes are detected by evaluation unit monitoring. See ‘Functional Safety data declaration’ on page 2

for a summary of the FMEDA.

NOTE: For the purposes of the FMEDA calculation, the following conditions have been assumed:

Method: SN29500 Environment: Ground mobile Temperature: 85°C

Installation

For the safety function to be valid the instructions detailed in this installation guide must be followed.

Commissioning test

The following check must be performed when commissioning the TONiC FS system and after any repair of
the system.

NOTE: Repair is by replacement of system parts only.

Axis movement check Move the axis over its full travel to verify the following:

X Position output is correct within a tolerance of ±10%.

X Direction of movement is correct.

X The signal amplitude for both sine and cosine signals falls within the limits

dened in ‘Evaluation unit monitoring’.

Evaluation unit monitoring

To achieve full system integrity the evaluation unit must continuously monitor the analogue outputs and,

in the case of fault detection, place the system into a safe state within the process safety time.

Signal amplitude check Nominal signal amplitude value is 1V, indicating full signal strength where

√ (sine2 + cosine2) = 1V. A fault condition must be asserted if the analogue
output is ≤0.7 V and ≥1.35 V.

Sine/cosine cross check Sine and cosine signals must be evaluated separately and the results

compared. A fault condition must be asserted if the phase shift is incorrect
with reference to the safe position limit for the system, see ‘Output

specications’ on page 22.

Following error check Following error is dened as the difference between the expected position

and position feedback. A fault condition must be asserted if the following error

exceeds the safe position limit for the system.

NOTES:

X The evaluation unit must achieve medium diagnostic coverage (≥90%) according to ISO13849.

X Improper setting of the switching thresholds and hysteresis in signal evaluation can result in incorrect

determination of direction of rotation, position or speed.

X A persistent fault condition may indicate a hardware failure of the TONiC FS system or an

installation problem.

Maintenance

The maintenance check intervals will be dened by the system manufacturer according to their risk
assessment. There are no user serviceable parts within the readhead and interface.

The following maintenance actions are advised:

X Check the readhead to bracket screws are correctly tightened.

X Check for worn or damaged cable connecting the readhead to the interface.

X Check that the scale has not been damaged or contaminated. If required, clean the system using

approved solvents (see ‘Storage and handling’ on page 5).

NOTE: Do not retighten the screws securing the encoder ring as this will change the ring settings.

Repair

The replacement parts must have the same part number as the original parts. The new system must be
installed and commissioned in accordance with the ‘Commissioning test’. In the event of failure the affected
parts should be returned to Renishaw for further analysis. Using damaged parts invalidates the Functional
Safety certication.

Proof testing

It is the responsibility of the system manufacturer to dene any proof testing of the system. Due to the
diagnostic coverage (DC) and safe failure fraction (SFF) required to achieve SIL2, the encoder can only

support continuous demand use.

TONiC RESM20 Functional Safety installation guide and safety manual Original instructions

3

Certication

EU declaration of conformity

TONiC FS encoder system

FunctionalSafetyCerticateNo.FSC001

SIL2

FUNCTIONAL

SAFETY

PLd

Under the terms of CSA SIRA Functional Safety Certicate SIRA CASS00023/01, for the management and
self-certication of functional safety activities up to SIL3/PLd:

Renishaw plc declares that the products listed by this installation guide meet the requirements of:

BS EN IEC 61508-1:2010, BS EN IEC 61508-2:2010 and BS EN IEC 61508-3:2010

BS EN 61800-5-2:2017 (IEC 61800-5-2:2016)

BS EN ISO 13849-1:2015 and BS EN ISO 13849-2:2012

when used as an element/subsystem in safety related systems performing safety functions requiring up to

and including:

SIL2 with HFT = 0 (1oo1)

Category 3, PLd.

Renishaw plc declares under its sole responsibility that the products identied below are in conformity with
all relevant Union legislation.

Name Description

Product Name: TONiC FS encoder system

Description: TONiC optical encoder system, that is FS certied

Part no.: T3xxx (Linear); T4xxx (Rotary)

Valid from: Serial number 2AHF37

Serial number 2AHF79

The products comply with EU directives:

2014/30/EU Electromagnetic compatibility (EMC)

2011/65/EU On the restriction of the use of certain hazardous substances

inelectrical and electronic equipment (recast)

and comply with the following technical standards:

BS EN 12100:2010 Safety of machinery. General principles for design.

Risk assessment and risk reduction

BS EN 61010-1:2010 Safety requirements for electrical equipment for measurement,

control, and laboratory use

Part 1: General requirements

BS EN 61326-1:2013 Electrical equipment for measurement, control and laboratory use.

EMC requirements. General requirements

Immunity to Table 2 - Industrial electromagnetic environment
Emissions to Class A - Industrial electromagnetic environment

BS EN 62471:2008 Photobiological safety of lamps and lamp systems

The persons authorised to compile the technical le and issue the declaration of conformity are:

Steve Oakes, Director & General Manager, Encoder Products Division

Martin Curtis, Regulatory Compliance Manager, Encoder Products Division

Renishaw plc, New Mills, Wotton-under-Edge, Gloucestershire, GL12 8JR, United Kingdom

Signed: M. Curtis

Dated: 30/09/2019

Place: Wotton-under-Edge

Reference no. EUD 2019-003

TONiC RESM20 Functional Safety installation guide and safety manual Original instructions

BS EN IEC 63000:2018 Technical documentation for the assessment of electrical and

electronic products with respect to the restriction of hazardous
substances

4

Storage and handling

TONiC RESM rings are non-contact optical
encoders that provide good immunity against

contaminantssuchasdust,ngerprintsand
lightoils.

However, in harsh environments such as
machine tool applications, protection should be

providedtopreventingressofcoolantoroil.

Ring and readhead

N-heptane

Ring only

Acetone

Readhead only

Acetone

Storage

CH3(CH2)5CH

3

Chlorinated

Solvents

3

CH3COCH

CH3COCH

3

Chlorinated

Solvents

+70°C

−20°C

Propan-2-ol

CH3CHOHCH

3

Methylated

Spirits

Methylated

Spirits

TONiC RESM20 Functional Safety installation guide and safety manual Original instructions

Operating

+70°C
0°C

Humidity

95% relative humidity

(non-condensing) to

IEC60068-2-78

5

TONiC FS T40x1 readhead installation drawing

(RESM ‘A’ section ring shown)

18

31

2 off mounting holes M2.5 through,
counterbored Ø3 × 2.75 deep from

alternative mounting face

3

16

Optical centreline
(incremental and reference mark)

‘A’ section – Offset 1.75 ±0.5
‘B’ section – Offset 3.25 ±0.5

7.5

(Yaw tol. ±0.4°)

0.25

(Roll tol. ±0.5°)

0.08

11

13.5

Dimensions and tolerances in mm

*

8.75

*

R>20 Dynamic bend radius
R>10 Static bend radius

±0.25

Ø4.25

4.6

6 min

22

11.5

29

35

23

3

Recommended
mounting faces

Set-up LED

CAL/AGC LED

2 off mounting holes 2.5 through, counterbored Ø3 × 2.3 deep both sides

(Pitch tol. ±1°)

0.6

Rideheight 2.1 ±0.15

Forward direction of ring

(increasing count)

4.25

Alternative

mounting

face

4.15

10

†

* Extent of mounting faces.

NOTE: External magnetic elds greater than 6 mT, in the vicinity of the readhead, may cause false activation of the limit and reference sensors.

†

Minimum thread engagement 5mm (7.5 including counterbore). Tightening torque 0.25 to 0.4 Nm.

TONiC RESM20 Functional Safety installation guide and safety manual Original instructions

6

RESM20 installation drawing (‘A’ section)

Dimensions and tolerances in mm

N holes equally spaced on PCD ØDH Ø3.5 through
counterbore top face Ø6 × 3 deep

N holes equally spaced on PCD ØDH M3 × 0.5 through
counterbore top face Ø3.5 × 4 deep

A

10

A

θ

0.5 × 45°

15° ±0.2°

1 × 45°

3

ØDI

Section A–A

ØDH

ØDO

NOTE: θ is the angle between one tapped hole and the adjacent clearance hole.
The angle between two clearance holes is 2θ.

TONiC RESM20 Functional Safety installation guide and safety manual Original instructions

Nominal
external

diameter

(mm)

52

57

75

100

103

104

115

150

200

206

209

229

255

300

350

413

417

489

550

*

There are no tapped holes on the 489 mm ring.
IMPORTANT: TONiC FS readheads must be used with the correct size RESM.
Ensure matching part numbers when ordering.

Line

count

8 192

9 000

11 840

15 744

16 200

16 384

18 000

23 600

31 488

32 400

32 768

36 000

40 000

47 200

55 040

64 800

65 536

76 800

86 400

DO

(mm)

52.20 30.04

52.10 30.00

57.35 37.04

57.25 37.00

75.40 55.04

75.30 55.00

100.30 80.04

100.20 80.00

103.20 80.04

103.00 80.00

104.40 80.04

104.20 80.00

114.70 95.04

114.50 95.00

150.40 130.04

150.20 130.00

200.40 180.04

200.20 180.00

206.50 186.05

206.10 186.00

208.80 186.05

208.40 186.00

229.40 209.05

229.00 209.00

254.80 235.06

254.40 235.00

300.40 280.06

300.20 280.00

350.40 330.06

350.20 330.00

412.70 392.08

412.30 392.00

417.40 380.10

417.00 380.00

489.12 451.10

488.72 450.90

550.20 510.10

549.80 510.00

DI

(mm)

Mounting holes Readhead

DH

(mm)

40 6 30°

47 6 30°

65 6 30°

90 6 30°

90 6 30°

90 6 30°

105 6 30°

140 9 20°

190 12 15°

196 12 15°

196 12 15°

219 12 15°

245 12 15°

290 16 11.25°

340 16 11.25°

402 18 10°

390 18 10°

462

520 20 9°

N

20

θ

18° *

model

T4021

T4011

T4001

7

RESM20 installation drawing (‘B’ section)

Dimensions and tolerances in mm

N holes equally spaced on PCD ØDH Ø3.5 through

N holes equally spaced on PCD ØDH M3 × 0.5 through

A

A

Nominal

external

diameter

(mm)

75 11 840

115 18 000

150 23 600

200 31 488

θ

Section A–A

2.5 × 45°

7

Line

count

DO

(mm)

75.40

75.30

100.30

100.20

114.70

114.50

150.40

150.20

200.40

200.20

DI

(mm)

55.04

55.00

80.04

80.00

95.04

95.00

130.04

130.00

180.04

180.00

Mounting holes Readhead

model

DH

(mm)

61 6 30°

86 6 30°

101 6 30°

136 9 20°

186 12 15°

N

θ

T4011100 15 744

T4001

6.5

ØDI

ØDH

ØDO

NOTE: θ is the angle between one tapped hole and the adjacent clearance hole.
The angle between two clearance holes is 2θ.

TONiC RESM20 Functional Safety installation guide and safety manual Original instructions

R0.5

3

8

Select a mounting option Taper mount method

Taper mount Interferencet

‘A’ Section

‘B’ Section

Not applicable

Notes Recommended for all installations

X Enables simplest adjustment.
X Offers highest accuracy.
X Enables eccentricity to be compensated.
X Offers excellent mechanical stability

against thermal cycling, shock

and vibration.

X Minimises cost of substrate preparation.

Alternative installation

Will not correct eccentricity of the
supporting shaft.

Step 1

Recommended taper roundness:

Diameter (mm) Roundness

Recommended taper diameter (DT):

DO (mm) DT (mm)

Mountingshaftspecications

value (mm TIR)

≤115 0.025

150 to 225 0.050

≥300 0.075

DO (mm) DT (mm)

52

57

75

100

103

104

115

33.85

33.65

40.85

40.65

58.85

58.65

83.85

83.65

83.85

83.65

83.85

83.65

98.85

98.65

150

200

206

209

229

255

300

DT

1*

7 min

15° ±0.2°

*Allow 2 mm for 417 mm, 489 mm and 550 mm rings only.

DO (mm) DT (mm)

133.85

133.65

183.85

183.65

189.85

189.65

189.85

189.65

212.85

212.65

238.85

238.65

283.85

283.65

350

413

417

489

550

333.85

333.65

395.85

395.65

383.85

383.65

454.85

454.65

513.85

513.65

DO = Nominal external diameter.

Recommended surface nish ≤Ra 1.2.

NOTE: It is recommended that the mounting surface is a turned, rather than ground nish.

TONiC RESM20 Functional Safety installation guide and safety manual Original instructions

9

Step 2

X Remove protective lm from surface of RESM20.
X Clean shaft taper and internal taper of RESM20 as

recommended in ‘Storage and handling’ on page 5.

X Insert the rst screws:

- For RESM20 rings with 6, 9 or 18 mounting holes,
use 3 equally spaced M3 screws.

- For RESM20 rings with 12, 16 or 20 mounting holes,
use 4 equally spaced M3 screws.

NOTES:

X Do not lubricate screws.
X Do not use a thread locking compound.
X Recommended screw type M3 × 0.5 and must

comply with: ISO4762/DIN912 grade 10.9 minimum/
ANSIB18.3.1M.

X Minimum thread engagement 6mm.

X Insert the screws so that the RESM20 is loosely

connected to the shaft, then roughly align the ring by eye
and touch.

X Lightly tighten the screws. Use a Dial Test Indicator (DTI)

to check the radial displacement at the
screw locations.

NOTE: Disregard the radial displacement between the
screw locations.

DTI

Use a non-contact or low force <0.04N DTI with

ruby ball to ensure scale surface is not marked.

X Adjust the screws to reduce the range of radial displacement. When adjusting, identify the screw

location with the lowest radial displacement and tighten that screw, aiming for the average of the highest

and lowest indicator readings.

X Repeat this process until the DTI readings are within ±5 µm at the screw locations.

NOTE: It may be necessary to loosen screws whilst tightening other screws.

NOTE: At this stage, the screws

should only be lightly tightened

(less than 0.5Nm) to allow
further nal adjustment.

Step 3

X Insert the next screws:

- For RESM20 rings with 6, 9 or 12 mounting holes,
insert all the remaining M3 screws.

- For RESM20 rings with 16 mounting holes, insert

3equally spaced M3 screws.

- For RESM20 rings with 18 mounting holes, insert

6equally spaced M3 screws.

- For RESM20 rings with 20 mounting holes, insert

8equally spaced M3 screws (in four groups of two)
between existing screws.

X As described in Step 2, adjust all the screws inserted thus

far, so that the radial displacement at each screw location
is within ±5 µm.

X Again, at this stage, the screws should only be lightly

tightened (less than 0.5 Nm).

NOTE: You may notice that the torque required to achieve

the radial displacement tolerance will be slightly higher
during Step 3 than during Step 2. This is normal.

TONiC RESM20 Functional Safety installation guide and safety manual Original instructions

10

Step 4

Interferencetmethod

Step 5

Diameter

(mm)

≤115 1.5 to 2.1

150 to 255 0.8 to 1.1

300 to 413 0.5 to 0.7

≥417 1.2 to 1.7

Tightening

torque range

(Nm)

X Insert screws into the remaining mounting holes.

X Rotate the RESM20 ring, measuring the radial

displacement at all of the screw locations.

X Tighten the screw with the lowest radial displacement so

that it matches the average radial displacement, whilst
ensuring the maximum torque specied in the table is
not exceeded.

X Again, rotate the RESM20 ring and re-check the radial

displacement at all of the screw locations, tightening
the screw with the lowest radial displacement so that it

matches the average.

X Repeat this process until the radial displacement at all

of the screw locations is within ±3 µm and that all screw

torques are within the specied range.

X Excessive tightening of screws can have a small effect

on accuracy. Please contact your local representative for

more details.

Mountingshaftspecications

DO

X Remove protective lm from surface of RESM20.
X Clean the mounting faces of shaft and RESM20 as recommended

in ‘Storage and handling’ on page 5.

NOTES:

X Do not lubricate the screws.

X Do not use a thread locking compound.

X Ensure that all screws are tightened to 1.6Nm.

X Minimum thread engagement 6mm.

X Recommended screw type M3 × 0.5 and must comply with:

ISO 4762/DIN 912 grade 10.9 minimum/
ANSI B18.3.1M.

DS

DO (mm) DS (mm)

52 *

57

75

100

103

104

115

150

200

206

209

229

255

300

350

413

30.033

30.017

37.033

37.017

55.039

55.020

80.045

80.023

80.045

80.023

80.045

80.023

95.045

95.023

130.052

130.027

180.052

180.027

186.060

186.031

186.060

186.031

209.060

209.031

235.060

235.031

280.066

280.034

330.073

330.037

392.073

392.037

TONiC RESM20 Functional Safety installation guide and safety manual Original instructions

NOTES:

X 417, 489 and 550 mm rings should

be taper mounted only.

X DO = Nominal external diameter.

X DS = Recommended shaft

diameter to enable interference t.

* 52mm ‘B’ section ring =

32.017.

32.033

11

TONiC FS quick-start guide

This section is a quick-start guide to installing a TONiC FS system.

More detailed information on installing the system is contained in the following sections of the installation guide.

INSTALLATION

Ensure scale, readhead optical window and mounting faces are clean and free from obstructions.

Plug the readhead cable into the Ti/DOP interface under the cover plate and reassemble interface. Connect to receiving electronics and power-up.

Ensure Automatic Gain Control (AGC) is switched off – the CAL LED on the readhead should be off (if not, press and hold the CAL button on the interface until the CAL LED on the readhead switches off).

Install and align the readhead to maximise signal strength over the full axis of rotation as indicated by the readhead and interface set-up LEDs (readhead – Green; DOP interface – ideally Blue/Purple).

CALIBRATION

Press and release the CAL button on the interface.The CAL LED on the readhead will be single-ashing.

Rotate the scale at slow speed (<100 mm/s), without passing a reference mark, until the CAL LED starts double-ashing.

No reference mark

If a reference mark is not being used, the calibration routine should now be exited

by pressing and releasing the CAL button. The CAL LED will stop ashing.

The system is now calibrated and ready for use.

For the safety function to be valid, customer commissioning tests must be performed: see ‘Commissioning test’ on page 3.

AGC can now be switched on if required by pressing and holding the CAL button until the CAL LED on the readhead switches on.

Calibration (CAL) values and AGC status are stored in readhead non-volatile memory at power down.

NOTE: If calibration fails, restore factory defaults by pressing and holding the CAL button whilst switching on. Then repeat the installation and calibration routine.

TONiC RESM20 Functional Safety installation guide and safety manual Original instructions

Reference mark

Move the readhead back and forth over the reference mark until the

CALLED stops ashing and remains ‘off’.

12

Cable connection

X The cable must be secured to a part that does not move relative to the readhead using a suitable clip

within 50mm of exiting the readhead with a minimum bend radius >10mm.

X Cable rolling radius must be >25mm when the cable is routed through moving trunking / a cable chain.

X The cable must be routed to avoid all moving parts of the machinery and the readhead itself.

X Route the cable away from operating environments that will exceed the EMC limits dened in

IEC61800-5-2 Annex E.

X Use only Renishaw approved cables between the readhead and the interface.

X The customer is responsible for verifying the product function where the readhead to interface cable has

been re-terminated, including the installation of extension cables. This includes EMC performance of the
installed system dened in IEC61800-5-2 Annex E.

X The sine and cosine signals must be connected as described in ‘Electrical connections’ on page 21.

System connection – Ti interface

Approved ESD precautions must be followed at all times during readhead and interface electrical

connections.

The readhead is connected to the Ti interface via a small, rugged PCB connector to allow for easy

feed-through during installation.

Connecting the readhead

1

Remove the cover plate as shown (2 × M2.5 hex head screws).

3

Ret the cover plate ensuring the cable ferrule is located in the recess on the inside and no wires

are trapped under the cover plate.

To ensure good electrical connection of the shield the tightening torque for cover screws is between

0.25Nm and 0.4Nm.

2

Taking care not to touch the pins, plug the connector into the socket in the interface, ensuring correct

orientation as shown. Press-t the PCB connector to ensure a good connection.

Mounting the interface to the receiving electronics is via 2 × 4-40 UNC screws. The tightening

4

TONiC RESM20 Functional Safety installation guide and safety manual Original instructions

torque is between 0.25 Nm and 0.4 Nm, or as required specic to the application and orientation

of mounting.

13

Disconnecting the readhead

Remove the cover plate on the interface

1

(2 × M2.5 hex head screws).

Gently lever the connector PCB (on the

2

end of the cable) out of the socket.

Do not pull the cable to remove the

connector.

System connection – DOP interface

Approved ESD precautions must be followed at all times during readhead and interface electrical

connections.

The readhead is connected to the DOP interface via a small, rugged PCB connector to allow for easy

feed-through during installation.

Connecting the readhead

Remove the cover plate on the

1

interface (2 × M2.5 hex head screws).

Taking care not to touch the pins,

2

plug the connector into the socket
in the interface, ensuring correct
orientation as shown.

3

Ret the cover plate ensuring the

cable ferrule is located in the recess
on the inside and no wires are

trapped under the cover plate.

Cover plate

DOP mounting

The DOP interface readhead is mounted to a suitable surface using customer-supplied screws appropriate
to the application details.

NOTES:

3

Place the connector in an anti-static bag.

Ret the cover plate.

4

X Recommended screw type M3 × 0.5 and must comply with:

ISO4762/DIN 912 grade 8.8 minimum/ANSI B18.3.1M.

X No washer is required under the screw head.

X Minimum thread engagement 6 mm.

X Tightening torque 0.9 Nm to 1.1 Nm.

X The DIN rail mounting where used must comply with EN50022.

Disconnecting the readhead

1

Remove the cover plate on the interface (2 × M2.5 hex head screws).

2

Gently lever the connector PCB (on the end of the cable) out of the socket.

3

Place the connector in an anti-static bag.

4

Ret the cover plate.

TONiC RESM20 Functional Safety installation guide and safety manual Original instructions

14

T40x1 readhead and RESM20 compatibility

T40x1 readhead models are compatible with a range of RESM ring sizes. The optical conguration is optimised for the following conditions:

Readhead model RESM20 diameter range (mm)

T4001 >135

T4011 60 to 135

T4021 52 to 59

Published performance specications and operating tolerances only apply where the correct readhead model conforms to the RESM size

range. Ensure readhead part number and RESM size range compatibility at the time of ordering and installation.

Reference mark position

IN-TRAC ™ reference mark is integrated in the scale, radially aligned with the centre of the mounting hole to the left of the ‘Renishaw’ logo

within ±0.5 mm. No external actuators or physical adjustment are required.

TONiC RESM20 Functional Safety installation guide and safety manual Original instructions

15

Readhead mounting and alignment

Mounting brackets

The bracket must have a at mounting surface and should enable conformance to the installation tolerances,
allow adjustment to the rideheight of the readhead, and be sufciently stiff to prevent deection or vibration
of the readhead during operation. It must not be allowed to work itself loose due to vibration.

NOTES:

X Recommended screw type M2.5 × 0.45 and must comply with:

ISO4762/DIN 912 grade8.8 minimum/ANSIB18.3.1M.

X The use of a thread locking compound is recommended.

X No washer is required under the screw head.

X Minimum thread engagement 5mm (7.5mm including counterbore).

X Tightening torque 0.25Nm to 0.4Nm.

X Mounting hole clearance will contribute to mechanical safe position.

Readhead set-up

Ensure that the ring, readhead optical window and mounting face are clean and free from obstructions.

NOTES:

X Ensure protective lm is removed from the ring before installing the readhead.

X When cleaning the readhead and scale apply cleaning uid sparingly; do not soak.

To set nominal rideheight, place the Green spacer with the aperture under the optical centre of the readhead

to allow normal LED function during set-up procedure. Adjust the readhead to maximise the signal strength
and achieve a Green set-up LED on the readhead (>70% signal) for a complete rotation. If a DOP interface is

used, aim for a Blue LED on the interface.

NOTE: The readhead should be installed and set up with the Automatic Gain Control (AGC) switched off
(CAL LED off). When re-installing the readhead, factory defaults should be restored (see page 17).

Readhead set-up LED status

Green Orange Red

Green spacer

Pitch

0° ±1°

*

Optical centreline

Ya w

0° ±0.4°

Rideheight

2.1 ±0.15 mm

DOP interface set-up LED status

Blue Green Orange Red
Purple

Roll

0° ±0.5°

*

* For further information on LED status see page 18.

TONiC RESM20 Functional Safety installation guide and safety manual Original instructions

16

System calibration

Calibration is an essential operation that completes readhead set-up, with the optimum incremental

and reference mark signal settings stored in the readhead’s non-volatile memory.

Before system calibration

X Clean the scale and readhead optical window (contamination around the reference mark may result in

reference mark dephasing).

X If re-installing the readhead, restore factory defaults.

X Maximise the signal strength along full axis of travel.

NOTE: Calibration (CAL) routine should be carried out at slow speed (<100 mm/s or less than the

readhead maximum speed, whichever is slowest).

Step 1 – Incremental signal calibration

X Ensure Automatic Gain Control (AGC) is switched off – CAL LED on readhead is not illuminated –

before beginning calibration.

X Press and release the CAL button on the end of the interface using a 2 mm Allen key or similar tool.

NOTE: Activating the CAL switch only requires 2.5 N force. Applying excess force may permanently

damage the switch.

Set-up LED

CAL button

{

Step 2 – Reference mark phasing

X Move the readhead back and forth over the reference mark until the CAL LED stops ashing and

remains off. The reference mark is now phased.

X The system automatically exits the CAL routine and is ready for operation.

X For the safety function to be valid, customer commissioning tests must be performed:

see ‘Commissioning test’ on page 3.

X If the CAL LED continues double-ashing after passing the reference mark many times, it is not

detecting the reference mark. Ensure that the correct readhead conguration is being used. Readheads

can either output all reference marks or only output a reference mark where a reference selector magnet

is tted.

NOTE: The LED on the interface will ash blank when the reference mark is detected (>100mm/s only).
It indicates the presence of a reference mark, not the phasing status.

Calibration routine – manual exit

X To exit the calibration routine at any stage press the CAL button. The CAL LED on the readhead will

then stop ashing.

X For the safety function to be valid, customer commissioning tests must be performed:

see ‘Commissioning test’ on page 3.

CAL LED Settings stored

Single-ashing None, restore factory defaults and re-calibrate

Double-ashing Incremental only

Off (auto-complete) Incremental and reference mark

Restoring factory defaults

When re-installing the system, or in the case of continued calibration failure, factory defaults should be
restored.

To restore factory defaults

X Switch system off.

Ti interface DOP interface

X The CAL LED will now periodically single-ash to indicate that it is in incremental signal calibration

mode.

X Move the readhead along the axis, ensuring you do not pass the selected reference mark, until the CAL

LED starts double-ashing, indicating the incremental signal is now calibrated and the new settings are

stored in the readhead memory.

X The system is now ready for reference mark phasing.

X For systems without reference mark, go to ‘Calibration routine – manual exit’.

X If the system does not automatically enter the reference mark phasing stage (no double-ashing

of the CAL LED) the calibration of the incremental signals has failed. After ensuring failure is not due

to overspeed (>100 mm/s or exceeding the readhead maximum speed), exit the calibration routine,

restore factory defaults and check the readhead installation and system cleanliness before repeating the
calibration routine.

TONiC RESM20 Functional Safety installation guide and safety manual Original instructions

X Press and hold the CAL button whilst switching the system on. The CAL LED on the readhead will ash

several times, indicating that the factory defaults have been restored.

X Release CAL button.

X Check ‘Readhead mounting and alignment’ on page 16, and re-calibrate the system.

NOTE: System must be re-calibrated after restoring factory defaults.

Switching AGC on or off

AGC can be switched on or off via the interface.

X Press and hold the CAL button on the interface for >3 seconds to switch AGC on or off.

The CAL LED on the readhead will be illuminated when AGC is active.

NOTE: The system must be calibrated before switching AGC on.

17

Diagnostic LEDs

T40x1 readhead LED

LED Indication Status

Set-up

Incremental

Reference
mark

CAL

Operating

Calibration

Reset

*

Flash will effectively be invisible when incremental signal level is >70% when passing reference mark.

†

For Functional Safe applications the set-up LED must be Green. See ‘Evaluation unit monitoring’ on page 3.

Green Normal set-up; signal level >70%

Orange

Red

Acceptable set-up; signal level 50% to 70%

Poor set-up; signal may be too low for reliable operation;

signal level <50%

†

Green (ash) * Normal phasing

Orange (ash) Acceptable phasing

Red (ash) Poor phasing; clean scale and recalibrate if required

On AGC – On

Off AGC – Off

Single-ashing Calibrating incremental signals

Double-ashing Calibrating reference mark

Flashing at
power-up (<2s)

Restore factory defaults

DOP interface set-up LED

Signal Indication Status

Incremental

Purple Normal set-up; signal level 110% to 135% No

Blue Optimum set-up; signal level 90% top 110% No

Green Normal set-up; signal level 70% to 90% No

Orange

Red

Acceptable set-up; signal level 50% to 70%

Poor set-up; signal may be too low for reliable

operation; signal level <50%

†

Purple / blank – ashing Over signal; system in error Ye s

Blue / blank – ashing Over speed; system in error Ye s

Red / blank – ashing Poor set-up; signal level <20%; system in error Ye s

Reference
mark

†

For Functional Safe applications the LED must be Purple, Blue or Green. See ‘Evaluation unit monitoring’ on page 3.

NOTES:

X Alarm output will take the form of 3-state or line driven E signal depending on interface conguration. Also, some

congurations do not output overspeed alarm. See TONiC FS Data Sheet (L-9517-9878) for details of interface
conguration.

X Momentary Alarm output status only, while fault condition remains.

X Alarm may result in axis position error, re-datum to continue.

Blank ash

Reference mark detected
(speed <100mm/s only)

Alarm

output

No

No

No

TONiC RESM20 Functional Safety installation guide and safety manual Original instructions

18

Output signals

NOTE: Only analogue sine and cosine outputs are functionally safe.

Ti0000 interface output

Function Output type Signal Pin

Power

5 V Power 4

5 V Sense 5

0 V Power 12

Output connector for

Ti interfaces;

15 way D-type plug

DOP interface output

Function Output type Signal Pin

Power 5 V Power 26

0 V Sense 13

Incremental
signals

Cosine V

1

Analogue

Reference
mark

Limits

Sine V

Analogue V

Open collector

2

0

Set-up – V

+ 9

− 1

+ 10

− 2

+ 3

− 11

V

p

V

q

x

7

8

6

Incremental
signals

Reference
mark

Calibrate – CAL 14

Shield – Inner shield Not connected

– Outer shield Case

Readhead output

Alarm

Limits

Function Output type Signal Colour

Power

Incremental
signals

Cosine V

1

Analogue

Reference
mark

Sine V

Analogue V

2

0

Limits

Open collector

Set-up – V

5 V Brown

0 V White

+ Red

− Blue

+ Yellow

− Green

+ Violet

− Grey

V

p

V

q

x

Pink

Black

Clear

Readhead
set-up

Shield

NOTE: T4000 series readheads are tted with P and Q ‘end of travel’ limit switch sensors, typically

used for linear motion applications.

P and Q limit actuators are not suitable for ring encoder (RESM) installation.

Limit switch signal detail is included here for information only.

Please contact your local Renishaw representative if you require limits on your rotary installation.

Calibrate – CAL Orange

Shield – Inner shield Green/Yellow

– Outer shield Outer screen

TONiC RESM20 Functional Safety installation guide and safety manual Original instructions

RS422A digital

Cosine V

Analogue

Sine V

RS422A digital Z

Analogue V

RS422A digital E

Open collector

– X 10

– Inner shield

– Outer shield Case

5 V Sense 18

0 V Power 9

0 V Sense 8

+ 24

A

− 6

+ 7

B

− 16

+ 1

1

− 19

+ 2

2

− 11

+ 15

− 23

+ 12

0

− 20

+ 25

− 17

P 4

Q 13

Not

connected

Output connector for

DOP interfaces;

26-way high-density

D-type plug

19

Speed

Clocked output

option

(MHz)

50 10 10 10 6.48 3.24 1.62 0.648 0.324 0.162 0.065 0.032

40 10 10 10 5.40 2.70 1.35 0.540 0.270 0.135 0.054 0.027

25 10 10 8.10 3.24 1.62 0.810 0.324 0.162 0.081 0.032 0.016

20 10 10 6.75 2.70 1.35 0.675 0.270 0.135 0.068 0.027 0.013

12 10 9 4.50 1.80 0.900 0.450 0.180 0.090 0.045 0.018 0.009

10 10 8.10 4.05 1.62 0.810 0.405 0.162 0.081 0.041 0.016 0.0081

8 10 6.48 3.24 1.29 0.648 0.324 0.130 0.065 0.032 0.013 0.0065

6 10 4.50 2.25 0.90 0.450 0.225 0.090 0.045 0.023 0.009 0.0045

4 10 3.37 1.68 0.67 0.338 0.169 0.068 0.034 0.017 0.0068 0.0034

1 4.2 0.84 0.42 0.16 0.084 0.042 0.017 0.008 0.004 0.0017 0.0008

Analogue output

(Ti0000 and DOP)

Angular speed depends on ring diameter – use the following equation to convert to rev/min.

Angular speed (rev/min) =

Where V = maximum linear speed (m/s) and D = external diameter of RESM20 (mm).

DOP
0004

5µm

V × 1000 × 60

DOP
0020

1µm

π D

DOP
0040

0.5µm

DOP
0100

0.2µm

Maximum speed (m/s)

DOP
0200

0.1µm

DOP
0400

50nm

10 (−3dB)

20nm

DOP
1000

DOP
2000

10nm

DOP
4000

5nm

DOP

10KD

2nm

DOP

20KD

1nm

TONiC RESM20 Functional Safety installation guide and safety manual Original instructions

20

Electrical connections

TONiC FS system grounding and shielding

Signal termination

Customer

Readhead

IMPORTANT: The outer shield must be connected to the machine earth (Field Ground). The inner shield

must be connected to 0 V at receiving electronics only. Care should be taken to ensure that the inner and

outer shields are insulated from each other. If the inner and outer shields are connected together, this will
cause a short between 0 V and earth, which could cause electrical noise issues.

NOTES:

X Maximum cable length between readhead and interface is 10m.

X Maximum extension cable is dependent on cable type, readhead cable length and clock speed. Contact

your local subsidiary for more information.

X For DOP interfaces the external earthing tag on the interface must be used when mounting the interface

on a DIN rail.

Inner shield

Outer shield

Interface

Extension cable

electronics

5 V

Output signals

0 V

Analogue outputs

V0 V1 V2+

120R

V0 V1 V2−

Limit output

(Limit output for information only)

5 to 24 V

R*

Vp Vq P Q

* Select R so maximum current does not exceed 20mA.
Alternatively use a suitable relay or opto-isolator.

Digital outputs

Readhead

ABZ E+

0 V

220 pF

Customer

electronics

Remote CAL operation

CAL

0 V

TONiC RESM20 Functional Safety installation guide and safety manual Original instructions

Ti and DOP interfaces include a push-button switch to enable CAL/AGC

features. However, remote operation of the CAL/AGC is possible via pin 14

of analogue Ti0000 interfaces. For applications where no interface is used,
remote operation of CAL/AGC is essential.

Standard RS422A line receiver circuitry.
Capacitors recommended for improved noise immunity.

A B Z E−

Cable Z 0 = 120R

120R

220 pF

0 V

21

Outputspecications

Analogue output signals

Digital output signals (DOP only)

Form – Square wave differential line driver to EIA RS422A (except limits P and Q)

Incremental 2 channels V1 and V2 differential sinusoids in quadrature (90° phase shifted)

20 µm

0.7 to 1.35 Vpp with Green LED

(V1 +) − (V1 −)

0°

(V2 +) − (V2 −)

indication (readhead) and 120R
termination.

Centred on 1.65 V.

NOTE: DOP centred on 2.5 V.

Reference

0.8 to 1.2 Vpp

(V0+) − (V0 −)

45°

360° (nominal)

Bi-directionally repeatable.
Differential pulse V0 , centred on 45°.

Differential signals V0+ and V0− centred on ~1.65 V

NOTE: DOP centred on 2.5 V.

Limits Open collector output, asynchronous pulse (limit signals for information only)

Ti0000 interface only

Active high

Repeatability <0.1 mm

Vp V

q

Length of limit actuator

NOTE: Ti0000 interface contains a transistor to invert the readhead’s ‘active low’ signal to give an ‘active high’ output.

T40x1 readhead only

Active low

Repeatability <0.1 mm

Vp V

q

Length of limit actuator

Incremental † 2 channels A and B in quadrature (90° phase shifted)

Signal period

Resolution

A

B

Reference †

Z

Wide reference

NOTE: Select ‘standard’ or ‘wide’ reference at time of ordering, to match the requirements of the controller being used.

†

Z

Bi-directionally repeatable pulse Z, duration equal to the resolution

Bi-directionally repeatable pulse Z, duration equal to the signal period

Limits Open collector output, asynchronous pulse (limit signals for information only)

Active high or Active low

Repeatability <0.1mm

P Q

Length of limit actuator

Repeatability <0.1 mm

P Q

Length of limit actuator

Ti0000 set-up *

3.3 (nom)

Voltage

at V

X

0

0 50% Signal level 70% 100%

Between 50% and 70% signal level, VX is a duty cycle.
Time spent at 3.3 V increases with incremental signal level.
At >70% signal level VX is nominal 3.3 V.

Alarm †

Line driven (Asynchronous pulse)

Alarm asserted when:
– Signal amplitude <20% or >135%.
– Readhead speed too high for reliable operation.

or 3-state alarm

Differentially transmitted signals forced open

circuit for >15 ms when alarm conditions valid.

* Set-up signals as shown are not present during calibration routine. † Inverse signals not shown for clarity.

TONiC RESM20 Functional Safety installation guide and safety manual Original instructions

DOP set-up

>15 ms

Voltage

E

at V

Set-up signal voltage proportional to incremental signal amplitude.

*

1

X

0

0

Signal level

100%

22

Generalspecications

Power supply

Temperature (system)

Sealing (readhead) IP40

(Ti interface) IP20

(DOP interface) IP30

Acceleration (readhead)

Shock (system)

Vibration (system)

Mass

Environmental Compliant with EU Directive 2011/65/EU (RoHS)

Readhead cable Double-shielded, outside diameter 4.25 ±0.25 mm

5 V ±10%

Ripple

Storage

Operating

Operating

Non-operating

Operating

Readhead

Ti interface

DOP interface 205 g

Readhead only <100 mA

T40xx with Ti0000 <100 mA
T40xx with DOP <275 mA
NOTE: Current consumption gures refer to unterminated

systems For digital outputs a further 25 mA per channel pair

(e.g., A+, A−) will be drawn when terminated with 120R. For

analogue outputs, a further 20 mA in total will be drawn when
terminated with 120R.

Power from a 5Vdc supply complying with the requirements
for PELV of standard IEC60950.

200 mVpp maximum @ frequency up to 500 kHz

−20°C to +70°C

0°C to +70°C

500 m/s², 3 axes

500 m/s², 11 ms, ½ sine, 3 axes

100 m/s², 55 Hz to 2000 Hz, 3 axes

10 g

100 g

Cable

26 g/m

Flex life >20 × 106 cycles at 20 mm bend radius

Ringtechnicalspecications

Pitch 20 µm

Material 303/304 stainless steel

Coefcientofthermalexpansion(CTE)

(at 20 °C)

Mountingshaftcoefcientofthermalexpansion

(at 20 °C)

Installation temperature 20 ±5°C

Mechanical safe position
(MSP)

NOTE:

Angular mechanical safe position =

Where MSP = linear mechanical safe position (mm) and

D = external diameter of RESM20 (mm)

*

When operating over full temperature range.

†

Rings retained by interference t only (unbolted) are not

approved for use with the TONiC FS encoder system.

*

RESM A section,

taper mount

RESM A and B

section, interference

mount

MSP × 360

π D × 1000

15.5 ±0.5 µm/m/°C

15.5 ±0.5 µm/m/°C

±0.2 mm

±1 mm

†

UL recognised component

Maximum
cable length

Renishaw encoder systems have been designed to the relevant EMC standards, but must be

correctlyintegratedtoachieveEMCcompliance.Inparticular,attentiontoshieldingarrangements
isessential.

Readhead to interface 10 m

Interface to controller Clocked output option

(MHz)

40 to 50 25

<40 50

Analogue 50

Maximum cable length

(m)

TONiC RESM20 Functional Safety installation guide and safety manual Original instructions

23

TONiC Ti interface drawing

Dimensions and tolerances in mm

TONiC DOP interface drawing

Dimensions and tolerances in mm

4-40 UNC × 2

Cover plate

40

15
8

9

8

1

16

Ø3.5 Clearance holes for M3 cap

33.3

62

67

48

32

screws and star washers or alternative

Calibration button

PORT NOT
CONNECTED

9

Set-up LED

15

53

59.3

21

4-40 unc hex

stand-off 2 positions

Output

26-way

high-density

D-type plug

36

3

7

8.7

33.3

10

12.4

Cable exit

Access hatch for readhead

cable connection

Mounting for 35 mm

DIN rail (EN50022)

External earthing tag

14.2

2.8

(0.11inch)

37.3

CAL/AGC push-button switch
access hole Ø2.4

21

CAL/Calibration button operation

Push and release (<3 seconds) – CAL routine enable/disable.
Push and release (>3 seconds) – AGC enable/disable.
Push and hold during power ‘Off/On’ cycle – Restore factory defaults.

Refer to readhead LED functionality chart for set-up LED indications.

TONiC RESM20 Functional Safety installation guide and safety manual Original instructions

85

93.5

24

Renishaw plc

New Mills, Wotton-under-Edge,
Gloucestershire GL12 8JR
United Kingdom

RSLM high accuracy linear encoder

T [phone]
F [phone]
E [e-mail]

www.renishaw.com

For worldwide contact details, visit 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.

© 2019 Renishaw plc. All rights reserved.
Renishaw reserves the right to change specications without notice.

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, trade marks or registered trade marks of their respective owners.

*M-6688-9043-02*

Part no.: M-6688-9043-02-B

Issued: 11.2019