EDR..71 – 315, EDRN63 – 315

*26859823_1020*Drive Technology \ Drive Automation \ System Integration \ Services

Revision

Explosion-Protected AC MotorsEDR..71 – 315, EDRN63 – 315

Edition 10/2020 26859823/EN

SEW-EURODRIVE—Driving the world

1Revision

Revision – EDR..71 – 315, EDRN63 – 315 3

1 Revision

INFORMATIONThis revision describes amendments made to the "Explosion-Protected EDR..71 – 315 AC Motors, EDRN63 – 315 – ATEX" and "Explosion--Protected EDR..71 – 315AC Motors, EDRN63 – 315 – IECEx" operating instructions. The following chaptersare amended:• For a more detailed definition of the intended use:

– Motors of design 2G-b, 2D-b, 2GD-b, 3G-c, 3D-c and 3GD-c (chapter 5.12.ATEX)

– Motors of design 2G, 2D, 2GD, 3G, 3D and 3GD (chapter 5.12. IECEx)• Amendment according to standard:

– Overview of cable entries and line entries at EDR. and EDRN motors– Length expansion of stator housing and rotor

• Adaption of currents:– Temperature detection /KY (chapter 5.17.2 ATEX; chapter 5.18.2 IECEx)– Temperature detection /PK (chapter 5.17.3 ATEX; chapter 5.18.3 IECEx)– Temperature detection /PT (chapter 5.17.4 ATEX; chapter 5.18.4 IECEx)

• Revision and amendment of chapter introduction:– Motor/inverter assignment for motors of design 3G, 3D and 3GD (chapter

6.5.4. ATEX)– Motor/inverter assignment for motors of design 3G-c, 3D-c and 3GD-c (chapter

6.5.4. IECEx)

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2 Electrical installationMotors of design 2G, 2D, 2GD, 3G, 3D and 3GD

Revision – EDR..71 – 315, EDRN63 – 3154

2 Electrical installation

2.1 Motors of design 2G, 2D, 2GD, 3G, 3D and 3GDThe EDR../EDRN.. explosion-protected motors by SEW‑EURODRIVE are designedfor use in the following zones:

Catalog designa-tion of the motor

Protection type/protection level

Usage

/2G eb Can be used in zone 1 or 2

/2D tb Can be used in zone 21 or 22

/2GD eb, tb Can be used in zone 1 or 2, as well as in zone 21 or 22

/3G ec Can be used in zone 2

/3D tc Can be used in zone 22

/3GD ec, tc Can be used in zones 2 and 22

2.2 Motors of design 2G-b, 2D-b, 2GD-b, 3G-c, 3D-c and 3GD-cThe EDR../EDRN.. explosion-protected motors by SEW‑EURODRIVE are designedfor use in the following zones:

Design Protection type/protection level

Usage

/2G-b eb Can be used in zone 1 or 2

/2D-b tb Can be used in zone 21 or 22

/2GD-b eb, tb Can be used in zone 1 or 2, as well as in zone 21 or 22

/3G-c ec Can be used in zone 2

/3D-c tc Can be used in zone 22

/3GD-c ec, tc Can be used in zone 2 or 22

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2Electrical installationOverview of cable entries and line entries at EDR. and EDRN motors


2.3 Overview of cable entries and line entries at EDR. and EDRN motors

EDRSEDRE

– 71 80 90 100 112/132

EDRN 63 71 80 90 100 112/132S

Thread size/through holeand tolerance specification

Ø16 +0.5/-0 x – – – – –

Ø20 +0.5/-0 x – – – – –

M12x1.5 6H – x x x x x

M16x1.5 6H – x x x x x

M20x1.5 6H – x x x x x

M25x1.5 6H – x x x x x

M32x1.5 6H – x x x x x

M50x1.5 6H – x x x x x

NPT 1/2" – x x x x x

NPT 3/4" – x x x x x

Housing materialGD-AL x x x x x x

EN-GJL – x x x x x

Gasket – O-ring/gasket

Surface roughnesson sealing surface Rz in µm max. 63 max. 30

Wall thickness

With GD-ALin mm 2 6

With EN-GJLin mm – 8

Rectangularity mm < 0.2 < 0.1

Grounding connections – 1 internal + 1 external

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2 Electrical installationOverview of cable entries and line entries at EDR. and EDRN motors


EDRSEDRE

– 160 180 200 225 250/280 315

EDRN 132M/L 160 180 200 225 250 315

Thread size/through holeand tolerance specification

M12x1.5 6H x x x x x – –

M16x1.5 6H x x x x x x x

M20x1.5 6H x x x x x – –

M25x1.5 6H x x x x x – x

M32x1.5 6H x x x – – – –

M40x1.5 6H x x x x x – x

M50x1.5 6H x x x x x – –

M63x1.5 6H – – – x x x x

NPT 1/2" x x x x x x –

NPT 3/4" x – – – – – –

NPT 1 1/4" x x x x x – –

NPT 1 1/2" x x x x x – –

NPT 2 1/2" – – – – – x –

Housing materialGD-AL x x x x x – –

EN-GJL x x x x x x x

Gasket – O-ring/gasket

Surface roughnesson sealing surface Rz in µm max. 30

Wall thickness

With GD-ALin mm 7.5 –

With EN-GJLin mm 7 7.5

Rectangularity mm < 0.1

Grounding connections – 1 internal + 1 external26

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2Electrical installationTemperature detection /KY (KTY84 – 130)


2.4 Temperature detection /KY (KTY84 – 130)

NOTICEExcessive self-heating of the temperature sensor can damage the insulation of thetemperature detection as well as the motor winding.The drive system might be damaged.• The current in the circuit must not exceed 3 mA.• Observe the correct connection of the KTY to ensure correct evaluation of the

temperature detection.• Observe the polarity during connection.

The characteristic curve in the following figure shows the resistance curve subject tothe motor temperature with a measuring current of 2 mA and correct pole connection:

0

500

1000

1500

2000

2500

3000

-100 -50 0 50 100 150 200 -250 300 350

T [°C]

R [Ω]

1140975115

Technical data KTY84 – 130Connection Red (+)

Blue (−)

Total resistance at 20 – 25 °C 540 Ω < R < 640 Ω

Test current < 3 mA

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2 Electrical installationTemperature detection /PK (PT1000)


2.5 Temperature detection /PK (PT1000)

NOTICEExcessive self-heating of the temperature sensor can damage the insulation of thetemperature detection as well as the motor winding.The drive system might be damaged.• The current in the circuit must not exceed 3 mA.• Observe the correct connection of the PT1000 to ensure correct evaluation of the

temperature detection.

The characteristic curve in the following figure shows the resistance curve subject tothe motor temperature.

0

500

1000

1500

2000

2500

3000

-100 -50 0 50 100 150 200 250

T [°C]

R [Ω]

17535480203

Technical data PT1000Connection Black/red

Resistance at 20 – 25 °C per PT1000 1077 Ω < R < 1098 Ω

Test current < 3 mA26

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2Electrical installationTemperature sensor /PT (PT100)


2.6 Temperature sensor /PT (PT100)

NOTICEExcessive self-heating of the temperature detection can damage the insulation ofthe temperature detection as well as the motor winding.The drive system might be damaged.• The current in the circuit must not exceed 3 mA.• Observe the correct connection of the PT100 to ensure correct evaluation of the

temperature detection.

The characteristic curve in the following figure shows the resistance curve subject tothe motor temperature.

0

50

100

150

200

250

300

-100 -50 0 50 100 150 200 250

T [°C]

R [Ω]

1145838347

Technical data PT100Connection Red/white

Resistance at 20 – 25 °C per PT100 107.8 Ω < R < 109.7 Ω

Test current < 3 mA

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3 Mechanical installationLength expansion of stator housing and rotor


3 Mechanical installation

3.1 Length expansion of stator housing and rotorThe following table shows the maximum axial length expansion of EDR. and EDRNmotors. The expansion refers to the state of the motor without self-heating and ismeasured from the tool flange.

SizesLength expansion

housing at rated powerin mm

Length expansionrotor at rated power

in mm63

0.15

0.015

71

80

90

100

0.53

112

132

160

180

200

0.42 0.68

225

250

280

315

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4Duty types and limit valuesMotor/inverter assignment for motors of design 3G, 3D and 3GD


4 Duty types and limit values4.1 Motor/inverter assignment for motors of design 3G, 3D and 3GD

Frequency inverters that have similar values with respect to output current and outputvoltage can also be used. For more information, refer to the standard EN 60079‑15.When selecting and operating the frequency inverters, make sure that the maximuminput voltage of the inverter is 500 V so that the maximum permitted DC link voltage of707 V DC in motor operation is maintained. DC link coupling with 2 or more frequencyinverters is not permitted. Set the PWM frequency of the frequency inverter to at least3 kHz.Combinations for motor voltages other than 230/400 V can be requested fromSEW‑EURODRIVE.

INFORMATIONThe maximum speed values may be lower due to options and connection of a gearunit. Refer to the nameplate for the permitted values.

4.2 Motor/inverter assignment for motors of design 3G-c, 3D-c and 3GD-cFrequency inverters that have similar values with respect to output current and outputvoltage can also be used. For more information, refer to the standard IEC 60079-15for EDR.. and IEC 60079-7 for EDRN.. motors.When selecting and operating the frequency inverters, make sure that the maximuminput voltage of the inverter is 500 V so that the maximum permitted DC link voltage of707 V DC in motor operation is maintained. DC link coupling with 2 or more frequencyinverters is not permitted. Set the PWM frequency of the frequency inverter to at least3 kHz.Combinations for motor voltages other than 230/400 V can be requested fromSEW‑EURODRIVE.

INFORMATIONThe maximum speed values may be lower due to options and connection of a gearunit. Refer to the nameplate for the permitted values.

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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, EDRN63 – 315

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