SEW-Eurodrive EDR71 User manual

*22127909_0718*
Drive Technology \ Drive Automation \ System Integration \ Services
Revision
Explosion-Proof AC Motors
EDR..71 – 315, EDRN80 – 315
ATEX
Edition 07/2018 22127909/EN

SEW-EURODRIVE—Driving the world

Table of contents
Revision – EDR..71 – 315, EDRN80 – 315 3
Table of contents
1 Revision..................................................................................................................................... 4
1.1 General information ........................................................................................................4
1.2 Motor structure................................................................................................................5
1.3 Mechanical installation....................................................................................................6
1.4 Startup ............................................................................................................................9
1.5 Appendix .......................................................................................................................10
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1Revision
General information
Revision – EDR..71 – 315, EDRN80 – 315
4
1 Revision
INFORMATION
This revision describes amendments made to the "Explosion-Proof AC Motors
EDR..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 information
1.1.1 Other applicable documentation
Explosion-proof EDR.., EDRN.. motors
The 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
Revision
Motor structure
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1.2 Motor structure
1.2.1 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-relevant
applications.
SEW‑EURODRIVE labels a functionally safe motor option at the drive with an FS logo
and a 2-digit number on the motor nameplate. The number is a code that indicates
which components in the drive are safety-related. This allows to uniquely identify an
available functionally safe motor option via the motor nameplate.
FS logo
Available functionally safe motor option
Decentralized in-
verters Safety brake Safety encoders
01
X
02
X
04
X
07
X X
11
X 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 is
available, 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 in
the 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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1Revision
Mechanical installation
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6
1.3 Mechanical installation
INFORMATION
Observe 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 mechanical
installation in the corresponding addendum to the operating instructions.
1.3.1 Preliminary work after longer periods of storage
Depending on the duration and ambient conditions during storage, corrosion, aging of
lubricants, 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 following
measures.
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 life
If the drives are stored for longer than a year, the service life of the bearing grease is
reduced 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 (see
chapter "Drying the motor"(→27)).
Checking the brake
If 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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Mechanical installation
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Measuring the insulation resistance
The 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 is
below the limit characteristic curve, dry the motor.
100
10
1
0,1 020 40 60 80
[˚C]
[M ]
173323019
Drying the motor
Proceed as follows to dry the motor:
1. Heat up the motor, either using warm air or using an isolation transformer:
WARNING
Risk 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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Mechanical installation
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8
Connection with wiring diagram R13
[1]
2336250251
[1] Transformer
Connection with wiring diagram R72
[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
Connection with wiring diagram R76
[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
Revision
Startup
Revision – EDR..71 – 315, EDRN80 – 315 9
1.4 Startup
1.4.1 Before startup
Prior 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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1Revision
Appendix
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10
1.5 Appendix
1.5.1 Declarations of conformity
EU Declaration of Conformity
Translation of the original text 900860810/EN
SEW-EURODRIVE GmbH & Co. KG
Ernst-Blickle-Straße 42, D-76646 Bruchsal
declares under sole responsibility that the following products
Bruchsal
a) Authorized representative for issuing this declaration on behalf of the manufacturer
b) Authorized representative for compiling the technical documents
Place Date
02.07.2018
Managing Director Innovation/Mechatronics
Dr. Hans Krattenmacher
a) b)
Motors of the series EDRS71.. – EDRE315..
Possibly in connection with brake of the
series BE..
Variant /3GD, /3G or /3D
Designation II3G Ex ec IIB T3 Gc
II3G Ex ec IIC T3 Gc
II3D Ex tc IIIB T120°C Dc
II3D Ex tc IIIB T140°C Dc
II3D Ex tc IIIC T120°C Dc
II3D 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/A11:2013
EN60079-7:2015
EN 60034-1:2010
EN 60079-31:2014
EN 50581:2012
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