production resources status times and … · purpose to define the production resources status...

© RENAULT 2009 Source : PEGI Renault Page : 1 / 27

Production resources status times and performance monitoring indicators

E41.50.505.R /H ________________________________________

Standard ________________________________________

Status Binding Important Note: This document has been translated from the French. In the event of any dispute, only the

French version is referred to as the reference text and is binding on the parties Purpose To define the production resources status times and performance monitoring indicators

to be specified/used during: the course of a business transaction production monitoring capitalisation

This document must be applied by vendors for the creation and acceptance of their means of production and manufacture and by maintenance personnel in the factories for monitoring performance and production means and by all persons concerned with capitalisation.

Scope Renault group Issuer 65931 - Maintenance Engineering and Means Performance Confidentiality Non-confidential Approved by Function Signature Date of application

T. Géniteau Department 65931 Manager 05/2009

E41.50.505.R /H


Version history

Version Update Subject of the main modifications Author A 09/1985 Creation. L. Bernat 65931 H 05/2009 RGU :

• Creation of § 3.2.2" Overall Factory Output Efficiency RGU " and abolition of the indications relative to the RGU in § 3.2.1

• Addition of the RGU, in the table of § 3.2 · • Addition of the RGU in § 2.2.

RPM : • complete reformulation complete of § 3.2.4.4" Actual Assembly Output

Efficiency RPM " OEE : Abolition of the notion of OEE in miscellaneous §, so as § 7

The § modified are marked by a vertical line in the margin

L. Bernat 65931

Replaces Same number version G of 11/2007 Available from Inside Renault, on the Intranet: http://gdxpegi.ava.tcr.renault.fr

Outside Renault, on the Internet: www.cnomo.com Email: [email protected]

Documents quoted Regulations : International : European : EN 15341 French : X 60-500 CNOMO : Renault : EB03.05.010, GE41-024, GE41-025. Other in-house doc. : Other external doc. : Codification ICS : 01.040.03 ; 03.100.50 ; 03.120.01 ; 21.020 Class E41 Key words temps état, indicateur, fmd, fiabilité, disponibilité, maintenabilité, sûreté de fonctionnement,

time, indicator, reliability, availability, capability to maintain, operating safety Language English (1) Assisted in authoring the document Site ou Direction Service Nom

E41.50.505.R /H


Contents

Page

Foreword ..................................................................................................................................... 4 1 General Topics............................................................................................................................ 4 2 Table of management performance indicators by usage phases.......................................... 5 2.1 Principles of construction of the tables..........................................................................................................5 2.2 Construction and performance management logic. ......................................................................................5 2.3 Indicator usage Tables ..................................................................................................................................6 3 Indicator Definition ..................................................................................................................... 9 3.1 Reference data..............................................................................................................................................9 3.2 Output Efficiency .........................................................................................................................................10 3.3 Availability....................................................................................................................................................12 3.4 Stoppage frequency ....................................................................................................................................13 3.5 Stoppage time .............................................................................................................................................14 3.6 Specific Indicators .......................................................................................................................................16 3.7 Other indicators ...........................................................................................................................................17 4 Definition of installation status times..................................................................................... 19 4.1 Total time -----------------------------------------------------------------------------> Tt................................................20 4.2 Requisite Time ----------------------------------------------------------------------> TR ..............................................20 4.3 Non-Requisite Time---------------------------------------------------------------- > TNR ...........................................20 4.4 Operating Time ----------------------------------------------------------------------> TF..............................................20 4.5 Actual Stoppage Time ------------------------------------------------------------> TAP.............................................21 4.6 Induced Stoppage Time -----------------------------------------------------------> TAI.............................................22 4.7 Flow Rupture ...............................................................................................................................................22 4.8 Filling – Emptying ........................................................................................................................................22 5 Other notions ............................................................................................................................ 23 5.1 Opening time ------------------------------------------------------------------------> To ...............................................23 5.2 Free time ------------------------------------------------------------------------------> Tl ...............................................23 6 Cycle time.................................................................................................................................. 23 6.1 Repetitive Excess Time of theoretical cycle ---------------------------------->TDRTcyth .....................................23 6.2 Actual cycle time -------------------------------------------------------------------->Tcyr ............................................23 7 Relationships between the indicators .................................................................................... 23 8 Cycle time measurement in monitoring systems .................................................................. 25 9 List of documents quoted........................................................................................................ 25 Appendix 1: Lexicon of abbreviations.................................................................................................. 26

E41.50.505.R /H


Foreword The French standards EN 15341 and X 60-500 cannot be used in their current state since they are not sufficiently complete for the monitoring of our production resources.

1 General Topics The object of this standard is to define:

✦ The rationale of how the physical performance of an installation is made up and the selection of indicators allowing the best representation possible of all the contributors, and the principal phases of the life cycle.

✦ The definitions of, and principal cases where recommended indicators are employed to translate the notions of : entry data, output, availability, frequency and times of stoppages.

✦ The different status times of an installation, (see diagram below) Note : An installation can be : • a means of production::

- a robotised island, - a machine, - a booth, an oven, .. - a machining or assembly transfer line,

• a piece of handling equipment - a roller table, - an overhead conveyor, - a ground-level assembly line,...

✦ other indicators translating the notions of : • productivity, • reliability, • quality rate. • maintainability, • cycle time, • rapidity in re-starting,

✦ The relationships which exist between these indicators.

Diagram showing the status times

Failure linked to toolsFailure linked to the machine

Change of toolPeriodically scheduledadjustementInspectionChange of operating sequenceSharpening of electrodesPeriodically schedulemaintenance,..

Operating Time (TF)

Requisite Time (TR)

Induced Stoppage Time (TAI)

Functionale StoppageTime (TAF)

CorrectOperating Time (TBF)

Part of TNR during which theoperator could use his productionresource tu produce

Potential availableTime (Td)

Unavailable time (Ti)

Breakdown Time (TP)

Total time (Tt)

Rest break, snack, ...Production ressource not performingProgrammed preventive maintenance actionsDeferred corrective maintenance actions

Actual Stoppage Teme (TAP)

Stoppage Time inducedby Lack of parts (TAIm)

Stoppage Time Inducedby saturation (TAIs)

Non RequisiteTime (TNR)

Stoppage Time Inducedby other causes (TAIa)

Lack of external resources :fluids, pallet, support, operator,manual or automatic partsprovisioning

Operating StoppageTime (TAe)

Defective OperatingTime (TFD)

Problem of quailityAccidental cutting of a unitFailure linked to the product

A malfunctioning facilityproduces faulty parts

Reference Cycle time overshoot (TDTC)

E41.50.505.R /H


2 Table of management performance indicators by usage phases

2.1 Principles of construction of the tables Table 1 on page 7 shows the principal recommended indicators for the different phases of an installation’s life cycle. An installation can be limited to one machine, but can also be a line, or a complete manufacturing workshop. As far as an industrial project is concerned, the installation is the contract scope most frequently used when dealing with Capital Goods Suppliers (FdBEs). The two columns in the table which describe the recommended indicators for defining the contract objectives with a supplier are:

Capital Goods Supplier bought performance services specifications and Capital Goods Supplier acceptance

Table 2 shows the use of other indicators which are not included with the list of recommended indicators. NOT ALLOWED This entry signifies that the use of the indicator concerned is not suitable because of what it takes into account of the independent results of sampling for the capital goods supplier. Its contractual use can risk serious disagreements with the supplier during the acceptance phases, leading to the strong possibility that expected results will not be achieved. NO This entry means that the indicator is not recommended for the phase concerned. Its use is not forbidden, but is generally of no interest for the performance management of the phase concerned.

2.2 Construction and performance management logic. The principal mission of an industrial manufacturing system is to produce a given volume of acceptable products, in a given requisite time, for the best possible complete cost. The physical performance of the system is one of the important components in fulfilling this mission.

2.2.1 Reference data Quite often, the entry data in a new project is as follows:

✦ Required time example : 1270min/day, 5,33 days/week, 5000h/year, defined by Renault

✦ Hourly actual and operating capacity This means the system working at its best to produce the expected output. These capacities are essential for Renault, but too global to be contractual with a capital goods supplier.

✦ Quality rate Can be partially contractual with a capital goods supplier.

✦ Nominal cycle time It is a fundamental item of data in the contract with a supplier of production engineering equipment (FdBE). It is updated whenever technical modifications result in its evolution.

✦ Theoretical cycle time The theoretical cycle time is the cycle time committed to officially and durably by the system operator for its production equipment. It can be identical to or above the nominal cycle time, e.g. in period of low activity, but cannot be below it.

All this data is generally specified in the planning phase and afterwards monitored regularly, at the start using projections, and after using actual measurements to ensure objectives are met.

E41.50.505.R /H


2.2.2 Output Efficiency Indicators There are three output efficiency indicators for the operational piloting of factories:

✦ Operating output efficiency

It shows the real production capacity for the requisite time with respect to a capacity without loss functioning in the theoretical cycle time, adapting itself, every time necessities, in the long-lasting changes of the conditions of exploitation.

✦ Actual Sectorial Output

It is based on th same principle as operational output efficiency, but does not consider production loss induced by the environment of the measurement perimeter In an asynchronous area, this output efficiency cannot generally be measured because of the “breathing” of materials undergoing processing which smoothes out the impact of any unpriming along the principal flow. However, an estimate by approximation can be made, and in a more refined way, by simulating the flow.

✦ Overall Factory Output Efficiency It characterizes the global performance of a plant

Note: Finally, to assess an industrial investment’s commitment, we can use the synthetic output efficiency (TRS) which measures output efficiency over total time (24/7) and based on the nominal cycle time (Tcy defined by Methods).

2.2.3 Stoppage frequencies and times Stoppage frequencies and times are the most common indicators.

✦ Frequencies for 1000 parts and mean stoppage time these are the most practical for management in the field.

✦ Stoppage times for 1000 parts

these show most clearly the real impact of the stoppages.

It is preferable to use stoppage frequencies and times per work unit when comparing different workshops and sites with each other. It is not desirable to permanently use all the indicators simultaneously, but according to the situation at any given moment, each of them can show the effectiveness of an action plan.

2.2.4 Other indicators recommended They are all the indicators recommended which cannot be classified in the categories above.

2.3 Indicator usage Tables The chapter numbers indicated in the charts are those giving the definition of indicators.

E

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Tabl

e 1

Ref

eren

ce d

ata

and

reco

mm

ende

d in

dica

tors

for p

erfo

rman

ce m

anag

emen

t by

usag

e ph

ase

Indi

cato

rs

* Th

e U

O (W

ork

Uni

ts) a

re :

UPS

TREA

M

TRAD

E

CO

NTR

ACTU

AL

PR

OJE

CT

CO

NTR

ACTU

AL S

UPP

LIE

R

BU

SIN

ES

S

ND

ICAT

OR

S PR

OJE

CT

BU

SIN

ES

S

IND

ICAT

OR

S LI

NE

pres

sing

: 10

000

line

pre

sses

,

pa

nels

: 1

mill

ion

equi

vale

nt s

olde

r poi

nts,

pa

int a

nd a

ssem

bly

: 100

0 ve

hicl

es

Def

initi

on

mac

ro

perfo

rman

ce

Ben

chm

ark.

CdC

P

erfo

rman

ce

sold

Pro

ject

M

anag

emen

t

Pro

ject

A

ccep

tanc

eC

dC

Per

form

ance

bo

ught

FdB

E

FdB

E

Acc

epta

nce

Per

form

ance

co

nstru

ctio

n an

d si

mul

atio

n

Sta

rtup

show

n as

a

pace

Line

O

pera

tion

Feed

back

Syn

onym

s an

d ob

serv

atio

ns

4.1

Ref

eren

ce d

ata

CdC

: se

rvic

e sp

ecifi

catio

ns

FdB

E :

Cap

ital G

oods

Sup

plie

r 3.

1.1

Req

uisi

te T

ime

TRYE

S

YES

YE

S

YES

YE

S

YES

N

O

YES

YE

S

3.

1.2

Hou

rly c

apac

ity

ac

tual

C

hpYE

S

YES

YE

S

NO

T AL

LOW

ED

N

OT

ALLO

WE

DYE

S

YES

YE

S

YES

3.1.

3 H

ourly

Cap

acity

op

erat

ing

Cho

YES

N

OT

ALLO

WE

D

NO

T AL

LOW

ED

YES

YE

S

3.

1.4

Qua

lity

rate

TqYE

S

YES

YE

S

YES

YE

S

YES

YE

S

YES

YE

S

3.

1.5

Cyc

le ti

me

nom

inal

Tc

yYE

S

YES

YE

S

YES

YE

S

YES

YE

S

YES

YE

S

3.

1.6

Cyc

le ti

me

theo

retic

al

Tcyt

hYE

S

NO

N

O

NO

N

O

NO

YE

S

YES

YE

S

Pac

ing

time

3.2

Out

put e

ffici

ency

3.2.

1 O

pera

ting

outp

ut e

ffici

ency

, Out

put e

ffici

ency

in p

ract

ice

Ro

YES

YE

S

YES

N

OT

ALLO

WE

D

NO

T AL

LOW

ED

YES

YE

S

YES

YE

S

3.

2.3

Act

ual s

ecto

rial o

utpu

t effi

cien

cy

RP

SYE

S

YES

YE

S

YES

YE

S

YES

YE

S

YES

YE

S

Dis

play

act

ual o

utpu

t effi

cien

cy.

§3.2

.2.4

. 3.

2.2

Ove

rall

Fact

ory

Out

put E

ffici

ency

R

GU

YES

YE

S

YES

N

OT

ALLO

WE

D

NO

T AL

LOW

ED

YES

YE

S

YES

YE

S

3.

3 A

vaila

bilit

ies

3.

3.1

Act

ual

avai

labi

lity

D

pYE

S

YES

YE

S

NO

T AL

LOW

ED

N

OT

ALLO

WE

DN

O

YES

YE

S

YES

ex

cept

war

ehou

sing

type

1

3.3.

2 A

vaila

bilit

y

for b

reak

dow

n D

paYE

S

YES

YE

S

NO

T AL

LOW

ED

N

OT

ALLO

WE

DYE

S

YES

YE

S

YES

ex

cept

war

ehou

sing

type

1

3.4

Stop

page

freq

uenc

ies

3.4.

1 A

ctua

l sto

ppag

e fre

quen

cy p

er 1

,000

par

ts

Fpm

YES

YE

S

YES

N

OT

ALLO

WE

D

NO

T AL

LOW

ED

YES

YE

S

YES

YE

S

3.

4.2

Num

ber

actu

al s

topp

age

by w

ork

unit*

N

AP

/ U

O

3.

4.3

Act

ual s

topp

age

frequ

ency

for b

reak

dow

n pe

r 1,0

00 p

arts

Fp

pmYE

S

YES

YE

S

YES

YE

S

YES

YE

S

YES

YE

S

3.

4.4

Num

ber

brea

kdow

n

by w

ork

unit

* N

P /

UO

3.4.

5 A

ctua

l fu

nctio

nal s

topp

age

frequ

ency

per

1,0

00 p

arts

Ff

pmYE

S

YES

YE

S

Con

tract

dep

end.

C

ontra

ct d

epen

d.YE

S

YES

YE

S

YES

3.4.

6 N

umbe

r fu

nctio

nal s

topp

age

by w

ork

unit

* N

AF

/ UO

3.4.

7 F

requ

ency

ac

tual

ope

ratin

g st

oppa

ge fo

r 100

0 pa

rts

Fepm

YES

YE

S

YES

N

OT

ALLO

WE

D

NO

T AL

LOW

ED

YES

YE

S

YES

YE

S

3.

4.8

Num

ber

oper

atin

g st

oppa

ge b

y w

ork

unit*

N

Ae

/ UO

3.5

Stop

page

Tim

es

3.5.

1 A

vera

ge A

ctua

l Sto

ppag

e Ti

me

TAP

M

3.

5.2

Act

ual S

topp

age

Tim

e fo

r 1,0

00 p

arts

TA

Ppm

YES

YE

S

YES

N

OT

ALLO

WE

D

NO

T AL

LOW

ED

YES

YE

S

YES

YE

S

3.

5.3

Act

ual s

topp

age

time

by w

ork

unit

* TA

P /

UO

3.5.

4 A

vera

ge B

reak

dow

n Ti

me

(= M

TTR

) TM

P

3.

5.5

Bre

akdo

wn

Tim

e fo

r 1,0

00 p

arts

TP

pmYE

S

YES

YE

S

YES

YE

S

YES

YE

S

YES

YE

S

3.

5.6

Bre

akdo

wn

time

by

Wor

k U

nit *

TP

/ U

O

3.

5.7

Ave

rage

Fun

ctio

nal S

topp

age

Tim

e TM

AF

3.5.

8 F

unct

iona

l Sto

ppag

e Ti

me

for 1

,000

par

ts

TAFp

mYE

S

YES

YE

S

Dep

end

cont

ract

Dep

end

cont

ract

YES

YE

S

YES

YE

S

3.

5.9

Fun

ctio

nal s

topp

age

time

b

y w

ork

unit

* TA

F / U

O

3.

5.10

Mea

n op

erat

ing

stop

page

tim

e TM

Ae

3.5.

11 O

pera

ting

Sto

ppag

e Ti

me

for 1

,000

par

ts

TAep

mYE

S

YES

YE

S

NO

T AL

LOW

ED

N

OT

ALLO

WE

DYE

S

YES

YE

S

YES

3.5.

12 O

pera

ting

stop

page

tim

e

by w

ork

unit

* TA

e / U

O

E

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The

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: U

PSTR

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TR

ADE

C

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TRAC

TUAL

P

RO

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US

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equi

vale

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nts,

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: 100

0 ve

hicl

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Def

initi

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ro

perfo

rman

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Ben

chm

ark.

CdC

P

erfo

rman

ce

sold

Pro

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M

anag

emen

t

Pro

ject

A

ccep

tanc

eC

dC

Per

form

ance

bo

ught

FdB

E

FdB

E

Acc

epta

nce

Per

form

ance

co

nstru

ctio

n an

d si

mul

atio

n

Sta

rtup

show

n as

a

pace

Line

O

pera

tion

Feed

back

Syn

onym

s an

d ob

serv

atio

ns

3.6.

1 A

vera

ge a

ctua

l cyc

le ti

me

Tcym

3.6.

2 A

vera

ge O

pera

ting

Tim

e B

etw

een

Bre

akdo

wns

(≤ M

TBF)

TF

MIP

3.6.

3 B

reak

dow

n R

ate

BD

RYE

S

YES

YE

S

YES

YE

S

YES

YE

S

YES

YE

S

Per

form

ance

of r

estri

cted

pe

rimet

er

3.6.

4 D

efec

tive

oper

atin

g ru

n fre

quen

cy

Fmd

A

ccor

ding

to a

rea

and

trade

3.

6.5

Def

ectiv

e op

erat

ing

run

rate

Tx

md

A

ccor

ding

to a

rea

and

trade

Ta

ble

2 : O

ther

Indi

cato

rs

UPS

TREA

M

TRAD

E

CO

NTR

ACTU

AL

PR

OJE

CT

CO

NTR

ACTU

AL S

UPP

LIE

R

BU

SIN

ES

S

IND

ICAT

OR

S PR

OJE

CT

BU

SIN

ES

S IN

DIC

ATO

RS

LI

NE

In

dica

tors

D

efin

ition

m

acro

pe

rform

ance

B

ench

mar

k.

CdC

P

erfo

rman

ce

sold

Pro

ject

M

anag

emen

t

Pro

ject

A

ccep

tanc

eC

dC

Per

form

ance

bo

ught

FdB

E

FdB

E A

ccep

tanc

e P

erfo

rman

ce

cons

truct

ion

and

sim

ulat

ion

Sta

rtup

show

n as

a

pace

Line

O

pera

tion

Feed

back

3.7.

1 C

ycle

tim

e

tota

l re

al m

in

Tctm

iYE

S

YES

YE

S

YES

YE

S

YES

YE

S

YES

YE

S

3.7.

2 C

ycle

tim

e

tota

l re

al m

ean

Tctm

3.

7.3

Cyc

le ti

me

ac

tual

re

al m

in

Tcpm

iYE

S

YES

YE

S

YES

YE

S

YES

YE

S

YES

YE

S

3.7.

4 A

vera

ge O

pera

ting

Tim

e TF

MYE

S

YES

YE

S

YES

YE

S

YES

YE

S

YES

YE

S

3.7.

5 O

pera

ting

avai

labi

lity

Do

NO

N

O

NO

N

OT

ALL

OW

ED

NO

T A

LLO

WE

DN

O

NO

N

O

NO

3.

7 6

Indu

ced

avai

labi

lity

Di

3.

7.7

Out

put e

ffici

ency

in te

rms

of s

peed

R

vYE

S

NO

N

O

NO

T A

LLO

WE

D N

OT

ALL

OW

ED

NO

YE

S

YES

YE

S

3.7.

8 O

pera

ting

unav

aila

bilit

y Io

3.

7.9

Act

ual u

nava

ilabi

lity

Ip

A

ctua

l una

vaila

bilit

y du

e to

bre

akdo

wns

Ip

p

A

ctua

l una

vaila

bilit

y du

e to

func

tiona

l sto

ppag

es

Ipf

Una

vaila

bilit

y du

e to

bre

akdo

wns

Ip

aN

O

NO

N

O

NO

N

O

NO

N

O

NO

N

O

3.7.

10 In

duce

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E41.50.505.R /H


3 Indicator Definition The indicator order and status times used in this chapter are those used in tables 1 and 2. Work Unit definitions for Renault -----------------------------------------------> UO Work Units are significant units of production activity. They are used to construct ratios which make comparisons between different production sites possible. For bodywork – assembly workshops, the work units are:

Pressing: 10000 line presses panelwork: 1 000 000 equivalent solder points assembly or painting: 1 000 vehicles

Remark: It is possible to have different values for work units for comparison with other areas of Renault.

3.1 Reference data

3.1.1 Requisite Time ----------------------------------------------------------------------------------- > TR Time during which the user commits his production resource with the intention of producing. This intention is expressed through the use of Technical and Human production resources.

3.1.2 Actual Hourly Capacity ------------------------------------------------------------------------- > Chp This is the potential capacity of a production area which can be achieved in 1 hour of production in the absence of any exterior constraint (saturation, supply shortage, energy shortage, lack of resources,..). In an asynchronous area, this output efficiency cannot generally be measured because of the “breathing” of materials undergoing processing which smoothes out the impact of any unpriming all the way along the principal flow. However, an estimate by approximation can be made, and in a more refined way, by simulating the flow.

3.1.3 Hourly Operating Capacity -------------------------------------------------------------------- > Cho Number of parts produced in a requisite time of one hour.

3.1.4 Quality rate---------------------------------------------------------------------------------------- > Tq

NPRNPBTq = =

required time the over produced parts of Numberrequired time the over produced Parts Good of Number

The number of acceptable parts produced corresponds to the number of acceptable parts delivered to the customer which is the downstream entity of the area of measure.

3.1.5 Nominal Cycle Time ---------------------------------------------------------------------------- > Tcy It is the cycle time on the updated optimisation procedure. It is a fundamental item of data in the contract with a supplier of production engineering equipment, updated according to technical evolutions. Cycle time determined by "Designers". It is what the "Production means" is able to perform when properly supplied and all its operating sequences applied.

3.1.6 Theoretical cycle time-------------------------------------------------------------------------- >Tcyth It is the cycle time committed to officially and durably on the facilities. It is determined according to the commitments set by the manufacturing programs.

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3.2 Output Efficiency

3.2.1 Operating output efficiency ---------------------------------------------------------------- > Rop The updated definition of the Operational output efficicency makes it fully equivalent to the existing sectorial global output efficiencies. Consequently, these are no longer required, and are replaced by the Operational output efficiency (Ro).

Ro = NPBNPTR

= Number of acceptable parts producedNumber of parts which can be produced in theory

For the NPPR, the parts count is carried out on the last workstation of the area.

with: NPTR = TcythTR =

time cycle lTheoreticatime Requisite

Number of parts which can theoretically be produced (NPTR): number of parts which the production resource (or the system) can theoretically produce if the production resource (or if all the components of the system) operated without any stoppage, operated fully in keeping with the theoretical cycle time (Tcyth) and did not produce any scrap during the requisite time. The following breakdowns are used to start identifying the principal causes of losses with a view to a global performance improvement plan.

Ro = Do x Rv x Tq

Ro = required time

time Operatingx

time cycle actual Averagetime cycle l Theoretica x

produced parts of Numberparts acceptable of Number

Ro = Dp x Di x Rv x Tq

Ro=TAPTF

TF+

x TR

TAITR − xTcymTcyth x

produced parts of Numberparts acceptable of Number

3.2.2 Overall Factory Output Efficiency-------------------------------------------------------- > RGU

RGU = NVTR

NV =

Tcyth

TRNV

The RGU is the ratio between the Number of Vehicles realized and the Number of Theory practicable Vehicles, this at the level of the TCM and during the requisite time NV : Number of realized vehicles taken out of TCM (Fallen from mechanics line) during the requisite time (TR),

with or without defect, complete or incomplete NVTR : Number of in theory practicable Vehicles during the requisite time :

NVTR = time) cycle al(Theoretic Tcyth

Time) (Requisite TR

The theoretical cycle time is the one of the last front section TCM.

E41.50.505.R /H


3.2.3 Operational output efficiency on stamping lines Details on calculating Ro

possible strokes of NumberRework) (Scrap - performed strokes of NumberRo +

=

With Number of strokes possible = ∑oceduresPr

[(Rate TOP5) x ∑BatchesTR ]

for a given product/process mix. With TR: Time required per batch, from last good part to last good part TOP5 rate: It is the product-process rate (Cpp). It is the rate measured over 5 minutes (also called TOP5 or TOP10, as certain sites, the measurement over 10 minutes) without incidents nor saturated line. The purpose of this rate is to qualify the product and process (tool, specific automation). The TOP5 rate is expressed in strokes/hour.

3.2.4 Actual Sectorial Output Efficiency----------------------------------------------------------- > RPS

RPS = stops induced Loss - NPTR

NPB

NPB = Number of acceptable parts produced in the requisite time The parts count is carried out on the last workstation of the area. NPTR = Number of parts theoretically possible (at theoretical cycle time) The parts count is carried out on the last workstation of the area. Induced stoppage losses = (Upstream losses)* + (Provisioning losses)* + (Downstream losses) * The effect of upstream and provisioning losses when leaving the area. In an asynchronous area, these losses are not measured but estimated in the number of lost parts.

This indicator is used a lot in the factory, but equally in flow simulations. It can be used for a sector area, for example:

Pressing Department: the RPS is equal to: ----------------------------------------------> RPE Panelling Department: the RPS is equal to: ---------------------------------------------> RPT Paint Department: the RPS is equal to: ---------------------------------------------------> RPP Assembly Department: the RPS is equal to ----------------------------------------------> RPM

For practical purposes, all parts delivered to the customer are considered acceptable for these output efficiency measurements (Quality Assurance principle).

3.2.4.1 RPE : Actual Output Efficiency for Pressing We use the formula of the RPS NPB : Number of good strokes. NPTR : Number of in theory practicable strokes. The induced loss fonctionning is estimated in number of lost strokes.

RPE = stops induced Loss - NPTR

NPB

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3.2.4.2 RPT : Actual Output Efficiency for Panelling

In general, induced loss is equal to: time cycle lTheoreticatime unpriming and Saturation

In the case of metal sheet, the effect at output of unpriming is impossible to quantify without simulation.

Hence, we only retain, in induced loss, that time cycle lTheoretica

time Saturation taken over the last station worked

in body finish. for the RPT the formula is:

RPT = NPTR

time cycle lTheoretica TAIs NPB +

3.2.4.3 RPP : Actual Output Efficiency for Painting

We use the formula of the RPS : For the profession Painting, as regards the " Induced stoppage losses ", for practical reasons, are booked, (at least), only the losses " Downstream " owed to the saturations engendered by the assembly

3.2.4.4 RPM : Actual Output Efficiency for Assembly NPB : Number of Acceptable Parts Produced NPTR : Number of Parts which can be Produced in Theory For the Assembly, NPB = NV : (see § 3.2.2) NPTR = NVTR : (See § 3.2.2) Induced stoppage losses have to be in equivalent vehicles. Note : this indicator of actual output efficiency for assembly core competences can decline at the level of every assembly UET, until the level installation, if necessary

3.3 Availability

3.3.1 Actual availability -------------------------------------------------------------------------------- > Dp

Dp = TFTF + TAP

= Operating timeOperating time + Actual stoppage time

3.3.2 Availability for breakdown--------------------------------------------------------------------- > Dpa

Dpa = TPTF

TF+

= etime eakdownrBmeperatingtiO

time Operating+

=TMPTFMIP

TFMIP+

time Breakdown + time Operating

time Operating = TP + TF

TF=Dpa

This indicator only gives a result for breakdown time.

RPM = stops induced Loss - NPTR

NPB

RPP = stops induced Loss - NPTR

NPB

E41.50.505.R /H


3.4 Stoppage frequency On a consolidated area of measure (a collection of several areas of measure), the frequencies are added and no mean is taken. This allows the best comparisons between areas. The Work Unit (UO) indicators are particularly useful in panelling and pressing where the number of parts produced isn’t always representative of a production activity which can be compared between sites.

3.4.1 Actual stoppage frequency for 1000 parts ------------------------------------------------ > Fpm

Fpm = 1000xNPRNAP = 1000x

time requisite during produced parts of Numberstoppages actual of Number

3.4.2 Number of stoppages per work unit -------------------------------------------------------- > NAP / UO NAP = Actual number of stoppages UO = Work unit : See § 3

3.4.3 Actual stoppage frequency for breakdown per 1,000 parts -------------------------- > Fppm

Fppm = 1000xNPRNP = 1000x

time requisite during produced parts of Numberbreakdows of Number

3.4.4 Number of breakdowns per work unit ------------------------------------------------------ > NP / UO NP = Number of breakdowns UO = Work unit : See § 3

3.4.5 Actual functional stoppage frequency per 1,000 parts -------------------------------- > Ffpm

Ffpm = 1000xNPRNAF = 1000x

time requisite during produced parts of Numberstoppages lfunctionna of Number

3.4.6 Number of functional stoppages per work unit------------------------------------------- > NAF / UO NAF = Number of functional stoppages UO = Work unit : See § 3

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3.4.7 Actual operating stoppage frequency per 1000 parts ---------------------------------- > Fepm

Fepm = 1000xNPRNAe = 1000x

time requisite during produced parts of Numberstoppages lfunctionna of Number

For the NPR, the parts count is carried out on the last workstation of the area.

3.4.8 Number of operating stoppages by work unit--------------------------------------------- > NAe / UO NAe = Number of operating stoppages UO = Work unit : See § 3

3.5 Stoppage time The mean stoppage time is already used frequently. The stoppage time for 1000 parts or by Work Unit best shows the stoppage volume related to the production.

3.5.1 Average Actual Stoppage Time ------------------------------------------------------------- > TAPM

TAPM = TAPNAP

= Actual stoppage timeNumber of actual stoppages

Unit: minutes

3.5.2 Actual Stoppage Time per 1,000 part------------------------------------------------------ >TAPpm

TAPpm = 1000xNPRTAP = Fpm x TAPM

TAP = Actual Stoppage Time NPR = Number of parts produced during requisite time Fpm = Actual stoppage frequency per 1,000 parts TAPM = Average actual stoppage time

Unit: minutes

3.5.3 Actual stoppage time by work unit ---------------------------------------------------------- > TAP / UO TAP = actual stoppage time UO = Work unit : See § 3

3.5.4 Average Breakdown Time (= MTTR)------------------------------------------------------- > TMP

TMP = TPNP

= Breakdown timeNumber of breakdowns

TP : Breakdown time or actual breakdown stoppage time Unit: minutes MTTR : Mean Time To Repair

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3.5.5 Breakdown time per 1,000 parts ------------------------------------------------------------ > TPpm

TPpm = 1000xNPRTP = Fppm x TMP

Unit: minutes

Fppm = Actual stoppage frequency for breakdown per 1,000 parts TMP = Average Breakdown Time TP = Breakdown Time NPR = Number of parts produced during requisite time

3.5.6 Breakdown time by work unit ----------------------------------------------------------------- > TP / UO TP = Breakdown Time UO = Work Unit : See § 3

3.5.7 Average Functional Stoppage Time -------------------------------------------------------- > TMAF

stoppages fontionnal of Numbertime stoppage Functional =

NAFTAF=TMAF

Unit: minutes

3.5.8 Functional stoppage time for 1000 parts -------------------------------------------------- > TAFpm

TAFpm =NPRTAF

x 1000 = required time during produced parts of Number

time stop Functional x 1000

3.5.9 Functional stoppage time by work unit----------------------------------------------------- >TAF / UO TAF = time stoppage Functional

UO = Work unit : See § 3

3.5.10 Mean operating stoppage time--------------------------------------------------------------- > TMAe

TMAe =NAeTAe

=stoppages operating of Number

time stoppage Operating

Unit: minutes This indicator shows the mean duration of stoppages linked to operation.

3.5.11 Operating stoppage time for 1000 parts --------------------------------------------------- > TAepm

TAepm = 1000x NPRTAe

=time requisite during produced parts of Number

time stoppage Operating x 1000

3.5.12 Operating stoppage time by work unit ----------------------------------------------------- > TAe / UO TAe = time stoppage Operating (See§ 4.5.2)

UO = Work unit : See § 3

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3.6 Specific Indicators

3.6.1 Average actual cycle time ------------------------------------------------------------------ > Tcym

The cycle time which the "Production Resource" actually achieves. The average actual cycle time is determined by the ratio between the operating time and the number of parts of the same type (both which can be accepted and which must be rejected) achieved by the "Production Resource".

required time the over produced parts of Numbertime Operating

NPRTFTcym ==

The operating time incorporates the lengths of time by which the cycle time is overshot

3.6.2 Average Operating Time Between Breakdowns (≤ MTBF) -------------------------- > TFMIP

TFMIP = TFNP

= Operating timeNumber of breakdows

Unit: minutes MTBF : Mean Time Between Failure

3.6.3 BreakDown Rate -------------------------------------------------------------------------------- > BDR

time Requisite time Breakdown

TRTP BDR ==

This is an indicator of non-availability due to breakdown related to requisite time, very largely used by Nissan. It is only significant in a synchronous area, any breakdown in this area causes an almost instantaneous stoppage of the area. Example of areas in which Breakdown Rate can be used: pressing (a press line, a cutting line,..), panelling (input workshop, crating, metalwork etc..), painting (cataphoresis line, lacquering line, etc), assembly (TSA1 sections, TMA,..). For a more extended area, the indicator can be calculated, but its physical reality becomes less relevant for quantifying the effect of breakdowns on the requisite time.

3.6.4 Defective operating run frequency---------------------------------------------------------- > Fmd

Fmd = NmdNPR

x1000 = Number of defective operating runsNumber of parts produced

x1000

3.6.5 Defective operating run rate------------------------------------------------------------------ > Txmd

Txmd= TFDTF

= Defective operating timeOperating time

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3.7 Other indicators

3.7.1 Real minimum total cycle time--------------------------------------------------------------- > Tctmi This time is measured between 2 cycle peaks including the waiting time. This value corresponds to the minimum value measured. This measurement is carried out at module level (see definition in the guides GE41-024 and GE41-025).

3.7.2 Real Mean total cycle time-------------------------------------------------------------------- > Tctm This time is measured over 10 cycles including the waiting time. This value corresponds to the mean value. This measurement is carried out at module level.

3.7.3 Real minimum actual cycle time ------------------------------------------------------------ > Tcpmi This time is measured between 2 cycle peaks, without taking into account waiting times. This value corresponds to the minimum value measured. This measurement is carried out at module level.

3.7.4 Average Operating Time ---------------------------------------------------------------------- > TFM

TFM = TFNAP

= Operating timeNumber of actual stoppages

Unit: minutes

3.7.5 Operating availability -------------------------------------------------------------------------- > Do

Do = TFTR

= Operating timeRequisite time

Do = Dp x Di = Actual availability x Induced availability

3.7.6 Induced availability ------------------------------------------------------------------------------ > Di

Di = TR - TAITR

= Requisite time - Induced stoppage timeRequisite time

3.7.7 Output efficiency in terms of speed--------------------------------------------------------- > Rv

time cycle actual Averagetime cycle lTheoretica =

TcymTcyth= Rv

3.7.8 Operating unavailability ----------------------------------------------------------------------- > Io

Io = 1 - Do = 1 – Operating availability

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3.7.9 Actual unavailability----------------------------------------------------------------------------- > Ip Ip = 1 - Dp = 1 - Actual availability Ip = Ipp + Ipf + Ipe = Specific unavailability due to failures + Specific unavailability due to

functional stops + Specific unavailability due to operating stops

Actual unavailability due to breakdowns ----------------------------------------------------> Ipp

Ipp = TPTF + TAP

= Breakdown timeOperating time + Actual stoppage time

Actual unavailability due to functional stoppages-----------------------------------------> Ipf

Ipf = TAFTF + TAP

= Functionnal stoppage timeOperating time + Actual stoppage time

Specific unavailability due to operating stops --------------------------------------------> Ipe

Ipe =TAPTF

TAe+

=time stopSpecific time Operating

time stop Operating+

Unavailability due to breakdowns -------------------------------------------------------------> Ipa

Ipa = TPTF + TP

= Breakdown timeOperating time + Breakdown time

3.7.10 Induced unavailability -------------------------------------------------------------------------- > Ii

Ii = 1 - Di = 1 - induced availability = TAITR

= Induced stoppage timeRequisite time

3.7.11 Induced secondary flow unavailability --------------------------------------------------- > Iiflux secondary

Ii = TAI secondary flowTR

= Induced secondary flow stoppage timeRequisite timesecondary flow

3.7.12 Requisition Rate --------------------------------------------------------------------------------- > Tr

Tr = TRTt

= Requisite timeTotal time

Synonym : Commitment rate, planning factor

3.7.13 Synthetic Output efficiency Rate ------------------------------------------------------------ > TRS

TRS = Ro x Tr x Tcyth

cyT

It allows assessing the commitment of an investment

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4 Definition of installation status times Status time: Time during which the installation is in a particular state (operating, idle, etc.). It is characterised by the duration between two moments which can be measured on the production resource. It is directly linked to the production resource.

Performance of production meansSTATUS TIME

Specific availability

Dp (%):

Operational availabilityDo (%):

OperationalOutput

efficiencyRo (%)

PROPER OPERATION TIME

OP

ER

ATI

NG

TIM

E

TIM

E R

EQ

UIR

ED

:TR

CLE

AN

STO

P TI

ME

S

INDUCED STOP TIMES

FUNCTIONAL STOP TIMES

OPERATINGSTOP TIMES

FAILURE TIMES

TAITR

TAP TAF

TAe

TP

TBF

TF Cycle time excessDegraded operation

SaturationLack

Frequency settingTool change

Induced (others)

Batch changeFrequency maintenance

Tool sharpening

Failure linked with product

Machine failure

Quality problem

Tool failure

Tota

l tim

e: T

t

Tt

TNR

Synthetic Output

efficiencyTRS :

∆t

∆t : Gap between theoretical cycle time and nominal cycle time

TAPTFTF+ TR

TF

TtTBF

see §7

Proper operating time at theoretical cycle time

Ti : Unavailable timeTd : Potential available time

Performance of production meansSTATUS TIME

Specific availability

Dp (%):

Operational availabilityDo (%):

OperationalOutput

efficiencyRo (%)

PROPER OPERATION TIME

OP

ER

ATI

NG

TIM

E

TIM

E R

EQ

UIR

ED

:TR

CLE

AN

STO

P TI

ME

S

INDUCED STOP TIMES

FUNCTIONAL STOP TIMES

OPERATINGSTOP TIMES

FAILURE TIMES

TAITR

TAP TAF

TAe

TP

TBF

TF Cycle time excessDegraded operation

SaturationLack

Frequency settingTool change

Induced (others)

Batch changeFrequency maintenance

Tool sharpening

Failure linked with product

Machine failure

Quality problem

Tool failure

Tota

l tim

e: T

t

Tt

TNR

Synthetic Output

efficiencyTRS :

∆t

∆t : Gap between theoretical cycle time and nominal cycle time

TAPTFTF+ TR

TF

TtTBF

see §7

Proper operating time at theoretical cycle time

Ti : Unavailable timeTd : Potential available time

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4.1 Total time ---------------------------------------------------------------------------------> Tt Reference time incorporating all the statuses possible for the installation (for a day: 24 hours, for a week: 168 hours, etc.).

4.2 Requisite Time --------------------------------------------------------------------------> TR Time committed to by the user for his means to produce at Theoretical cycle time (Tcyth). This translates into using Technical and Human means.

4.3 Non-Requisite Time > TNR Time added to the requisite time in relation to the total time: time during which the user does not have the intention to produce.

4.3.1 Potential available time --------------------------------------------------------- > Td Part of the non-requisite time during which the operator could use his production resource to produce. This is the complement of unavailability time / TNR.

4.3.2 Unavailable time------------------------------------------------------------------ > Ti Part of non-requisite time during which the operator could not produce because of constraints necessitating resource stoppage (cleaning, maintenance,..)

4.4 Operating Time--------------------------------------------------------------------------> TF Period of time during which the production resource produces parts (accepted or rejected), with or without due regard for the cycle time and with all or a part of its functions operating.

4.4.1 Correct Operating Time -------------------------------------------------------- > TBF

Period of time during which the production resource produces correctly manufactured parts within the reference cycle time and with all its functions operating.

4.4.2 Cycle time overshoot----------------------------------------------------------- > TDTC Overshoot of the reference cycle time less than a parameterable threshold which does not cause resource stoppage.

4.4.3 Defective Operating Time----------------------------------------------------- > TFD Period of time during which the resource:

- is operating defectively with at least one function out of order and at least one function working.

or - produces incorrectly manufactured parts

Example of a function out of order: A paint-spraying machine, one cup of which is out of action. It is nevertheless considered to be operating, and is taken into account when the indicators are interpreted.

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4.5 Actual Stoppage Time-----------------------------------------------------------------> TAP Stoppage time of which the cause is internal to the area of measure. The cause of this type of stoppage can be attributed to the production resource, its tooling, the component product, to a functional cause or operation of the resource.. Any fault for which the duration is less than a parameterable threshold will be considered as Operating Time.

4.5.1 Breakdown Time ---------------------------------------------------------------- > TP Time within actual stoppage time due to a malfunction of the installation. The cause of this stoppage can be assigned to a breakdown linked to the resource, to its tooling.

4.5.2 Operating Stoppage Time ---------------------------------------------------- > TAe Period of time within the actual stoppage time caused by the operator or the input product. This is the case with interruptions, which can have a large number of causes:

- bad hygiene, - problem of quality,... - accidental cutting of a unit,

4.5.3 Functional Stoppage Time---------------------------------------------------- > TAF Period of time within the actual stoppage time due to a functional cause. This is the programmed part of the actual stoppage time which includes the time allowed for:

- changing tools, - adjusting frequencies, - change of operating sequence, - inspecting the production resource or the manufactured product, - periodically scheduled maintenance (self-maintenance).

Part of the actual stoppage time necessary carrying out periodically scheduled maintenance of the production resource. First and foremost, this heading encompasses the time allowed for cleaning, removing chips, various inspections (temperature, pressure), calibration.

Programmed maintenance (Systematic visits, systematic preventive, programmed work) The conditions taken into account will be specified in the next update of this standard

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4.6 Induced Stoppage Time---------------------------------------------------------------> TAI Period of time during which the production resource cannot accomplish its function due to external causes. Examples:

Lack of spare parts or de-energisation, Saturation of parts, Shortage of personnel, Lack of external resources, Power fault.

4.6.1 Stoppage Time Induced by Saturation ---------------------------------- > TAIs Production resource stoppage time due to a cause coming from outside the perimeter of the production resource, on the downstream part of the production resource considered in the direction of flow.

4.6.2 Stoppage Time Induced by Lack of parts or De-energisation ----- > TAIm Production resource stoppage time due to a cause coming from outside the perimeter of the production resource, on the upstream part of the production resource considered in the direction of flow.

4.6.3 Stoppage Time Induced by other causes------------------------------- > TAIa Production resource stoppage time due to a cause coming from outside the perimeter of the production resource, which can be: a lack of secondary flow provisioning

The secondary flow can be: ☞ a provisioning of parts carried out manually by an operator or by automatic means ☞ the product-process added value of one or more operators

a lack of external resources (fluids, pallet, support, etc.)

4.7 Flow Rupture

4.7.1 Saturation Flow Rupture ------------------------------------------------------ > RFS Saturation Flow Rupture (RFS) allows counting over the main flow the time during which the means was saturated beyond theoretical cycle time (Tcyth). The RFS time is not a status time.

4.7.2 Unpriming Flow Rupture ------------------------------------------------------ > RFD

Unpriming Flow Rupture allows counting, over the main flow, the time the means was in unpriming beyond theoretical cycle time (Tcyth ). The RFD time is not a status time.

Note: Standard EB03.05.010 (§2.3 and appendix 1) specifies the management rules of flow

ruptures in monitoring the means.

4.8 Filling – Emptying These operating modes (Filling and emptying) are described in standard EB03.05.010 (Appendix 1). Rating in status times (Functional stops, induced,…) is specificed upon implementing monitoring of the means (Base of profession stop cause)

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5 Other notions

These periods of time are not installation status times.

5.1 Opening time ----------------------------------------------------------------------------> To Period of time during which the operating personnel are present. For example, over a period of 24 hours, for an installation performing non-stop for two 8-hour shifts, this is the period of time between the arrival of the morning shift and the departure of the evening shift.

5.2 Free time----------------------------------------------------------------------------------> Tl Time added to the opening time in relation to the total time. Free time = Tt - To

6 Cycle time

6.1 Repetitive Excess Time of theoretical cycle --------------------------------->TDRTcyth Repetitive excess time of the theoretical cycle time: gap between average actual cycle measured in the field and the theoretical cycle time.

Repetitive excess time of theoretical cycle time = Tcym – Tcyth

6.2 Actual cycle time ------------------------------------------------------------------------->Tcyr

This cycle time corresponds to an effective measurement of the cycle time on the operating machine, by timing over several consecutive cycles (e.g. 10 cycles) without clean stop, part wait, nor saturation of the production means.

7 Relationships between the indicators

Clean stop frequency for failure for 1000 parts ------------------------------------- > Fppm

Fppm = TFMIP

Tcyth X 1000 = failures between time operating Average

time cycle l Theoretica X 1000

Operating Productivity(Po) - Actual Productivity(Pp)----------------------------------- > Po and Pp

time cycle actual Averagetyavailabili lOperationa =

TcymDo= Po

Unit: parts / unit of time.

time cycle actual Averagetyavailabili Actual =

TcymDp= Pp

Unit: parts / unit of time. Remark: These relationships are only valid if the Po, Pp and Tcm units are homogeneous. Remark: When the time unit is : 1 hour : Po = Cho Pp = Chp

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Actual availability ---------------------------------------------------------------------------------- > Dp

Dp = TFMTFM + TAPM

= Average operating timeAverage operating time + Average actual stoppage time

Dp= time stoppage Actual- time Operating

time Operating TAPTF

TF=

+

Synthetic output efficiency rate (Total Productivity)

TRS = time Total

Tcy at time operating Good

TRS: Synthetic output efficiency rate The operating time is the time during which manufactured parts are considered

GOOD, at the nominal cycle time and NO LONGER, at theoretical cycle time

TRS = Ro x Tr xTcythTcy

= Do x Tr x NPRNPB

x TcymTcy

Do = Operational availability NPB = Number of good parts produced NPR = Number of parts produced over time required Ro = Operational output efficiency Tcym = Actual average cycle time Tcy = Nominal cycle time Tr = Requisition ratio Tcyth = Theoretical cycle time

The OEE is an indicator of the operation of a machine, a production line or of a process in terms of Availability and Quality. It is used by Nissan. OEE and Ro is reckoned with the same formula but with the interpretations different from variables which compose them

OEE = Availability factor x Performance factor x Quality factor

Note: The OEE performance factor corresponds to speed output efficiency.

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8 Cycle time measurement in monitoring systems

PRINCIPLE The time unit used is the TENTH OF A SECOND, but in numerous cases the 1/100th minute is used. This function is independent of all the other functions.

The cycle time counters are used to monitor, at module level

the actual cycle time = time between 2 cycle peaks – the waits, the total cycle time = time between 2 cycle peaks.

Note: the module can be a work station, i.e. a table module with which is associated 1 or n robots working on this table.

At each cycle end, the API enters in the exchange block the 2 cycle times which he has just measured as well as the type code of the part produced, and resets the corresponding counters in the exchange block.

Steps

1. Take note of the cycle number supplied by the API and check for previous measurements for this cycle. Bring back previous measurements if they exist.

2. Calculate the average of the “N” previous values (N being an installation parameter). 3. Save for the current workstation:

+ the smallest measurement + the largest measurement + the best mean

4. All the counters are archived by WORKSTATION for a duration of “N” days (in general, two rolling weeks). They can be consulted by workstation, preferably thanks to means monitoring.

9 List of documents quoted NOTE : For undated documents, the latest version in force applies EN 15341 : Maintenance - Maintenance Key Performance Indicators X 60-500 : Terminology relating to Reliability - Maintainability – Availability EB03.05.010 : Implementation of means monitoring and supervision in automatons GE41-024 : Definition of the perimeters of follow-up of the performances of the means of

production GE41-025 : Rules of choice of indicators associated to the perimeters of follow-up of the

performances of the means of production

E41.50.505.R /H Appendix 1 Normative


Appendix 1: Lexicon of abbreviations Acronym Wording Chapter /Page

BDR Breakdown rate 3.6.3 p16Cadence Top5 Stamping profession specific rate 3.2.3 p11Cho Hourly capacity operational 3.1.3 p9 Chp Hourly capacity actual 3.1.2 p9 Cpp Product process rate 3.2.3 p11Di Induced availability 3.7.6 p17Do Operating availability 3.7.5 p17Dp Actual availability 3.3.1 p12

7 p24Dpa Availability for breakdown 3.3.2 p12Fepm Actual operating stoppage frequency per 1000 parts 3.4.7 p14Ffpm Actual functional stoppage frequency per 1,000 parts 3.4.5 p13Fmd Frequency of degraded working 3.6.4 p16Fpm Actual stoppage frequency per 1,000 parts 3.4.1 p13Fppm Actual stoppage frequency for breakdown per 1,000 parts 3.4.3 p13

7 P23Ii Induced unavailability 3.7.10 p18Ii flux secondary Induced secondary flow unavailability 3.7.11 p18Io Operating unavailability 3.7.8 p17Ip Actual unavailability 3.7.9 p18Ipa Actual Unavailability due to breakdowns 3.7.9 p18Ipe Specific unavailability to operating stoppages 3.7.9 p18Ipf Actual unavailability due to functional stoppages 3.7.9 p18Ipp Actual unavailability due to breakdowns 3.7.9 p18MTBF Mean time between failure 3.6.2 p16MTTR Mean time to repair 3.5.4 p14NAe Number of operating stoppages 3.4.7 p14NAe /UO Number of operating stoppages per work unit 3.4.8 p14NAF Number of Functional Stoppages 3.4.5 p13NAF /UO Number of functional stoppages per work unit 3.4.6 p13NAP Number of Actual Stoppages 3.4.1 p13NAP / UO Number of Actual stoppages per work unit 3.4.2 p13Nmd Number of defective operating runs 3.6.4 p15NP Number of Breakdowns 3.4.3 p13NP / UO Number of breakdowns per work unit 3.4.4 p13NPB Number of Acceptable Parts Produced 3.1.4 p9

3.2.4 p11NPR Number of Parts Produced during Requisite Time 3.1.4 p9 NPTR Number of Parts which can be Produced in Theory 3.2.1 p10

3.2.3 p11

NV Number of finished vehicles is the Number of finished vehicles realized in TCM, good or with quality defects, complete or incomplete during the requisite time

3.2.2 p10

NVTR Number of in theory practicable Vehicles 3.2.2 p10OEE Overall equipment efficiency 7 p24pf Planning factor 3.7.12 p18

7 p24Po Operating productivity 7 p23Pp Actual productivity 7 p21RFD Flow rupture unpriming 4.7.2 p22RFS Flow rupture saturation 4.7.1 p22RGU Overall Factory Output Efficiency 3.2.2 p10Ro Operating output efficiency 3.2.1 p10Ro Operational output efficiency for stamping lines 3.2.3 p11RPE Actual output efficiency for pressing 3.2.4.1 p11RPM Actual Assembly Output Efficiency 3.2.4.4 p12RPP Actual output efficiency for painting 3.2.4.3 p12RPS Actual output efficiency sectorial 3.2.4 p11

E41.50.505.R /H Appendix 1 Normative


Acronym Wording Chapter /PageRPT Actual output efficiency for panelwork 3.2.4.2 p12Rv Output efficiency in terms of speed 3.7.7 p17

See TR Commitment rate 3.7.12 p18TAe Operating Stoppage Time 4.5.2 p21TAe /UO Operating Stoppage time per work unit 3.5.12 p15TAepm Operating Stoppage time per 1,000 parts 3.5.11 p15TAF Functional Stoppage Time 4.5.3 p21TAF / UO Functional Stoppage time per work unit 3.5.9 p15TAFpm Functional Stoppage Time per 1,000 parts 3.5.8 p15TAI Induced Stoppage Time 4.6 p22TAI flux secondary Induced Stoppage Time for secondary flow 3.7.11 p18TAIa Stoppage Time Induced by other causes 4.6.3 p22TAIs Induced Stoppage Time caused by saturation 4.6.1 p22TAIm Stoppage Time Induced by lack of part or De-energisation 4.6.2 p22TAP Actual Stoppage Time 4.5 p21TAPM Average Actual Stoppage Time 3.5.1 p14

See TP Actual Stoppage Time for breakdown 3.5.4 P14TAPpm Actual Stoppage Time for 1,000 parts 3.5.2 p14TAP /UO Actual Stoppage Time for work unit 3.5.3 p14TBF Correct Operating Time 4.4.1 p20Tcpmi Real minimum actual cycle time 3.7.3 p17Tctm Real mean total cycle time 3.7.2 p17Tctmi Real minimum total cycle time 3.7.1 p17Tcy Nominal cycle time 3.1.5 p9 Tcym Actual average cycle time 3.6.1 p16Tcyr Actual cycle time 6.2 p23Tcyth Theoretical cycle time 3.1.6 p9 Td Potential available time 4.3.1 p20TDRT cyth- Repetitive excess time of theoretical time 6.1 p23TDTC Cycle time overshoot 4.4.2 p20TF Operating Time 4.4 p20TFD Defective Operating Time 4.4.3 p20TFM Average Operating Time 3.7.4 p17TFMIP Average Operating Time Between Breakdowns 3.6.2 p16Ti Time unavailable 4.3.2 p20Tl Time free 5.2 p23TMAe Average operating stoppage time 3.5.10 p15TMAF Average Functional Stoppage Time 3.5.7 p15TMP Average Breakdown Time 3.5.4 p14TNR Non- Requisite Time 4.3 p20To Opening time 5.1 p23TOP5 / TOP10 3.2.3 p11TP Breakdown Time (or actual breakdown stoppage time) 3.5.4 p14

4.5.1 p21TP / UO Breakdown time per work unit 3.5.6 p15TPpm Breakdown Time for 1,000 parts 3.5.5 p15Tq Quality rate 3.1.4 p9 TR Requisite Time 3.1.1 p9

3.2.3 p114.2 p20

Tr Requisition rate 3.7.12 p18TRS Artificial output efficiency rate 3.7.13 p18

7 p24Tt Total time 4.1 p20Txmd Defective operating run rate 3.6.5 p16

- Total productivity 7 p24UO Work unit 3 p9