edr..71 – 315, edrn80 – 315 · 1 revision motor structure 5 revision – edr..71 – 315,...

*22127909_0718*Drive Technology \ Drive Automation \ System Integration \ Services

Revision

Explosion-Proof AC MotorsEDR..71 – 315, EDRN80 – 315ATEX

Edition 07/2018 22127909/EN

SEW-EURODRIVE—Driving the world

Table of contents

Revision – EDR..71 – 315, EDRN80 – 315 3

Table of contents1 Revision..................................................................................................................................... 4

1.1 General information ........................................................................................................ 41.2 Motor structure................................................................................................................ 51.3 Mechanical installation.................................................................................................... 61.4 Startup ............................................................................................................................ 91.5 Appendix ....................................................................................................................... 10

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1 RevisionGeneral information

Revision – EDR..71 – 315, EDRN80 – 3154

1 Revision

INFORMATIONThis revision describes amendments made to the "Explosion-Proof AC MotorsEDR..71 – 315, EDRN80 – 315 – ATEX" operating instructions (edition 05/2017)).The following chapters of the operating instructions have been complemented/re-vised:• Chapter 1.7 "Other applicable documentation"• Chapter 3.9 "Functional safety"• Chapter 4.2 "Preliminary work after extended storage periods"• Chapter 7.1 "Before startup"• Chapter 11.6 "Declarations of conformity"

1.1 General information1.1.1 Other applicable documentation

Explosion-proof EDR.., EDRN.. motorsThe following publications and documents have to be observed as well:• Wiring diagrams provided with the motor• Addendum to the operating instructions "Safety Encoders and Safety Brakes, AC

Motors DR.., DRN.., DR2.., EDR.., EDRN.. – Functional Safety"• "Project Planning for BE.. Brakes" manual – DR.., DRN.., DR2.., EDR.., EDRN..

AC Motors – Standard Brake/Safety Brake"

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1.2 Motor structure1.2.1 Functional safety

Drives from SEW‑EURODRIVE are also available with functional safety motor options.These options are intended for implementation of safety functions in safety-relevantapplications.SEW‑EURODRIVE labels a functionally safe motor option at the drive with an FS logoand a 2-digit number on the motor nameplate. The number is a code that indicateswhich components in the drive are safety-related. This allows to uniquely identify anavailable functionally safe motor option via the motor nameplate.

FS logoAvailable functionally safe motor option

Decentralized in-verters Safety brake Safety encoders

01X

02X

04X

07X X

11X X

If the FS logo, e.g. with the code "FS-11" is present on the motor nameplate, the com-bination of safety encoder and safety brake is available at the motor. If an FS logo isavailable, adhere to the information specified in the corresponding documentation.If the drive bears the FS logo on the nameplate, you must adhere to the information inthe following document:• Addendum to the operating instructions "Safety Encoders and Safety Brakes, AC

Motors DR.., DRN.., DR2.., EDR.., EDRN.. – Functional Safety"To determine the safety level for systems and machines yourself, refer to the charac-teristic safety values in chapter Characteristic safety values.

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1.3 Mechanical installation

INFORMATIONObserve the safety notes in chapter 2 of this documentation for the mechanical in-stallation.

Functional safety If the drive has the FS logo on the nameplate, observe the information on mechanicalinstallation in the corresponding addendum to the operating instructions.

1.3.1 Preliminary work after longer periods of storageDepending on the duration and ambient conditions during storage, corrosion, aging oflubricants, embrittlement of sealing elements, and moisture absorption in the insula-tion may occur.Drives that have been stored for longer than 9 months may require the followingmeasures.

Corrosion• Check for damage to motor and/or components (coating, shafts, connection and

fastening parts).• Correct corrosion damage.

Embrittlement of seals• Visually inspect seals and look for tears, hardening, and embrittlement.• Replace any damaged seals.

Reduced grease service lifeIf the drives are stored for longer than a year, the service life of the bearing grease isreduced due to aging and de-oiling of the lubricant.• Check the condition and usability of the rolling bearings.• Replace any damaged rolling bearing.

Reduced grease quantity• If motors are stored for longer than 5 years, regrease them according to the spe-

cifications on the motor nameplate using a relubrication device.

Moisture absorption• Check to see that the wiring space of the motor is dry and clean.• Remove moisture and dirt.• If the motor has absorbed moisture, measure the insulation resistance (see

chapter "Measuring the insulation resistance" (→ 2 7)) and dry the motor (seechapter "Drying the motor" (→ 2 7)).

Checking the brakeIf motors with brake have been stored or non-operational for longer than 9 months,check their function before taking them into operation.

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Measuring the insulation resistanceThe insulation resistance (see following figure) varies greatly depending on the tem-perature.If the measured resistance is within the range of the limit characteristic curve (depend-ing on the ambient temperature), the insulation resistance is sufficient. If the value isbelow the limit characteristic curve, dry the motor.

100

10

1

0,10 20 40 60 80

[ ˚C ]

[M ]

173323019

Drying the motorProceed as follows to dry the motor:1. Heat up the motor, either using warm air or using an isolation transformer:

WARNINGRisk of crushing due to torque at the motor shaft.Severe or fatal injuries.• Only use warm air for drying DR.. motors with rotor designation "J".• Do not use an isolation transformer for drying DR.. motors with rotor designation

"J".

With warm air

1. DR.. motors with rotor designation "J" may be dried with warm air only.2. End the drying process when the minimum insulation resistance is exceeded.

With disconnection switch

1. Connect the windings in series.2. Auxiliary AC voltage supply max. 10% of the nominal voltage with max. 20% of the

rated current

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Connection with wiring diagram R13

[1]

2336250251

[1] Transformer


[1]

V3

T8

W3

T9

V2

T5

W2

T6

V1

T2

U1

T1

W1

T3

U3

T7

U2

T4

W4

T12

V4

T11

U4

T10

[2]

2343045259

[1] Motor terminal boards [2] Transformer


[1]

V1

T2

U1

T1

W1

T3

W2 W3

T6 T9

V2 V3

T5 T8

U2 U3

T4 T7

[2]

2343047179

[1] Motor terminal boards [2] Transformer

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1.4 Startup

1.4.1 Before startupPrior to startup make sure that:• The drive is undamaged and not blocked.• Any transport locks have been removed.• The measures stipulated in chapter "Preliminary work after longer periods of stor-

age" (→ 2 6) are performed after storage periods longer than 9 months.• All connections have been made correctly.• The direction of rotation of the motor/gearmotor is correct.

– Motor rotating clockwise: U, V, W (T1, T2, T3) to L1, L2, L3• All protective covers are installed correctly.• All motor protection equipment is active and set for the rated motor current.• There are no other sources of danger.• Loose elements like keys are appropriately secured.• The brake is not manually released.

– The set screw of /HF option is loosened correctly.– The hand lever of the /HR option has been removed and correctly attached to

the stator using the designated clamps.

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1.5 Appendix1.5.1 Declarations of conformity

EU Declaration of ConformityTranslation of the original text 900860810/EN

SEW-EURODRIVE GmbH & Co. KGErnst-Blickle-Straße 42, D-76646 Bruchsaldeclares under sole responsibility that the following products

Bruchsal

a) Authorized representative for issuing this declaration on behalf of the manufacturerb) Authorized representative for compiling the technical documents

Place Date

02.07.2018

Managing Director Innovation/MechatronicsDr. Hans Krattenmacher

a) b)

Motors of the series EDRS71.. – EDRE315..

Possibly in connection with brake of theseries BE..

Variant /3GD, /3G or /3D

Designation II3G Ex ec IIB T3 GcII3G Ex ec IIC T3 GcII3D Ex tc IIIB T120°C DcII3D Ex tc IIIB T140°C DcII3D Ex tc IIIC T120°C DcII3D Ex tc IIIC T140°C Dc

in accordance with

ATEX Directive 2014/34/EU(L 96, 29.03.2014, 309-356)

RoHS Directive 2011/65/EU(L 174, July 1, 2011, 88-110)

Applied harmonized standards: EN 60079-0:2012/A11:2013EN 60079-7:2015EN 60034-1:2010EN 60079-31:2014EN 50581:2012

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EU Declaration of ConformityTranslation of the original text 900890810/EN

SEW-EURODRIVE GmbH & Co. KGErnst-Blickle-Straße 42, D-76646 Bruchsaldeclares under sole responsibility that the following products

Bruchsal

a) Authorized representative for issuing this declaration on behalf of the manufacturerb) Authorized representative for compiling the technical documents

Place Date

02.07.2018

Managing Director Innovation/MechatronicsDr. Hans Krattenmacher

a) b)

Motors of the series EDRS71.. – EDRE225..

Variant /2GD, /2G or /2D

Designation II2G Ex eb IIB T3 GbII2G Ex eb IIC T3 GbII2G Ex eb IIB T4 GbII2G Ex eb IIC T4 GbII2D Ex tb IIIC T120°C DbII2D Ex tb IIIC T140°C Db

in accordance with

ATEX Directive 2014/34/EU(L 96, 29.03.2014, 309-356)

RoHS Directive 2011/65/EU(L 174, July 1, 2011, 88-110)

Applied harmonized standards: EN 60079-0:2012/A11:2013EN 60079-7:2015EN 60034-1:2010EN 60079-31:2014EN 50581:2012

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SEW-EURODRIVE—Driving the world

SEW-EURODRIVE GmbH & Co KGErnst-Blickle-Str. 4276646 BRUCHSALGERMANYTel. +49 7251 75-0Fax +49 7251 [email protected]

edr..71 – 315, edrn80 – 315 · 1 revision motor structure 5 revision – edr..71 – 315,...

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