Contents Contents General Information .................... 5 How to use this documentation ..............5 Structure of the safety notes ............... 5 Rights to claim under warranty ..............6 Exclusion of liability..................6 Copyright..................... 6 Product names and trademarks ..............6 Safety Notes ......................7 Preliminary information ................
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Contents 5.12 Connecting category 2G and 2GD motors ..........27 5.13 Connecting category 3G and 3GD motors ..........28 5.14 Motors of category 2G, 2GD, 3D and 3GD ..........31 5.15 Accessory equipment................34 Duty Types and Limit Values ................36 Permitted duty types .................
General Information How to use this documentation General Information Explosion-Proof AC Motors DR63/eDR63, DVE250/280 How to use this documentation The documentation is an integral part of the product and contains important information on operation and service. The documentation is written for all employees who assemble, install, start up, and service this product.
General Information Rights to claim under warranty 1.2.3 Structure of the embedded safety notes Embedded safety notes are directly integrated in the instructions just before the descrip- tion of the dangerous action. This is the formal structure of an embedded safety note: •...
Safety Notes Preliminary information Safety Notes The following basic safety notes must be read carefully to prevent injury to persons and damage to property. The operator must ensure that the basic safety notes are read and adhered to. Make sure that persons responsible for the system and its operation, as well as persons who work independently on the unit, have read through the operating instructions carefully and understood them.
Safety Notes Target group Target group Any mechanical work may only be performed by adequately qualified personnel. Quali- fied personnel in the context of this documentation are persons familiar with the design, mechanical installation, troubleshooting and servicing of the product who possess the following qualifications: •...
Safety Notes Other applicable documentation Other applicable documentation The following publications and documents have to be observed as well: • Wiring diagrams provided with the motor • Operating instructions of the frequency inverter for motors powered by inverters • Operating instructions "Explosion-Proof Gear Units R..7, F..7, K..7, S..7 Series, ®...
Safety Notes Electrical connection Observe the notes in the "Mechanical Installation" section. Electrical connection All work may only be carried out by qualified personnel. During work, the low-voltage machine must be at standstill, enabled, and safeguarded against accidental restart. This also applies to auxiliary circuits (e.g.
Motor Structure Basic structure of the motors Motor Structure INFORMATION The following figures are block diagrams. They help you assign components to the spare parts list. Deviations are possible depending on the motor size and version. Basic structure of the motors The following figure illustrates the structure of a DR63/eDR.63 motor: 12 131 Rotor...
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Motor Structure Basic structure of the motors The following figure illustrates the structure of the DVE250/280 motor: 1213 1 Rotor, complete 35 Fan guard 128 Grounding terminal 3 Key 36 Fan 129 Screw plug 7 Flanged endshield 42 B-side endshield 134 Screw plug 9 Screw plug 44 Grooved ball bearing...
Motor Structure Nameplate, type designation Nameplate, type designation 3.2.1 Nameplate The following figure shows an example nameplate of a DVE motor in category 3GD: 6306-2Z-J-C3 6205-2Z-J-C3 EDRE90M4/2GD 0102 PTB 10 ATEX 1234 / 01 82,5 01.1151928301.0001.11 1430 220-240 / 380-420Y 3,48 0,77 PTB 10 ATEX 1234 / 02...
Motor Structure Accessory equipment Accessory equipment 3.3.1 AC motor series The following table shows the types of AC motors: Designation Category eDR.., DR.. ATEX motor DVE.. ATEX energy-efficient motor, High Efficiency IE2 63, 250, 280 Motor sizes /2G, /2GD, Lengths: /3D, /3GD S –...
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Motor Structure Accessory equipment 3.3.6 Explosion-proof motors The following table shows the possible explosion protection categories: Designation Option /II2G Motors according to Directive 94/9/EC, category 2 (gas) /II2GD Motors according to Directive 94/9/EC, category 2 (gas/dust) /II3D Motors according to Directive 94/9/EC, category 3 (dust) /II3GD Motors according to Directive 94/9/EC, category 3 (gas/dust) 3.3.7...
Mechanical Installation Before you start Mechanical Installation INFORMATION It is essential that you observe the safety notes in chapter 2 for mechanical installation. Before you start NOTICE The mounting position for installation must correspond with the specifications on the nameplate. Install the drive only if the following conditions are met: •...
Mechanical Installation Extended storage of motors Extended storage of motors • Note that the service life of the lubricant in the ball bearings is reduced by 10% per year after the first year of storage. • Before startup, you should re-lubricate the lubrication devices on motors that have been in storage for longer than 5 years.
Mechanical Installation Motor installation notes The drying process is finished when the minimum insulation resistance has been ex- ceeded. In the terminal box, make sure that: • The inside is clean and dry • The connections and fixing parts are free from corrosion •...
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Mechanical Installation Motor installation notes • Make sure that there is sufficient clearance around the motor/brakemotor to provide for adequate cooling, and that the motor does not draw in warm air from other units. Observe the following minimum clearance: Motor type h in mm eDR63, DR63 DVE250...
Mechanical Installation Installation tolerances Installation tolerances Shaft end Flanges Diameter tolerance according to EN 50347 Centering shoulder tolerance in accordance with EN 50347 • ISO j6 with Ø ≤ 28 mm • ISO k6 with Ø ≥ 38 mm up to ≤ 48 mm •...
Mechanical Installation Painting WARNING Possible damage to the motor outputs when turning the terminal board. Possible damage to property. • To make sure that the cables have not been damaged, carry out an insulation test after re-assembly, see chapter "Extended storage of motors" (page 17). 4.6.2 Tightening torques The following table shows all the tightening torques required for this procedure:...
Electrical Installation Additional regulations Electrical Installation WARNING Danger of electric shock. Severe or fatal injuries! • Note the following: • Comply with the safety notes in chapter 2 during installation. • Use switch contacts in utilization category AC-3 according to EN 60947-4-1 for switching the motor.
Electrical Installation Equipotential bonding Only use connection glands with screw heads that fit into the existing counterbore. The following table shows the sizes of the flat bottom counter sinking with the corre- sponding screw sizes: Counter sinking in mm Screw fitting All cable entries that are not required must be sealed off with a closing plug after com- pletion of the installation in order to maintain the degree of protection.
Electrical Installation Special aspects for operation with frequency inverter Special aspects for operation with frequency inverter When motors are powered from inverters, you must observe the wiring instructions is- sued by the inverter manufacturer. It is essential that you observe chapter "Operating modes and limit values"...
Electrical Installation Ambient conditions during operation 5.10 Ambient conditions during operation 5.10.1 Ambient temperature The temperature range of -20 °C to +40 °C must be ensured unless specified otherwise on the nameplate. Motors intended for use in higher or lower ambient temperatures have specific designa- tions on the nameplate.
Electrical Installation Notes regarding the connection of the motor 5.11 Notes regarding the connection of the motor INFORMATION It is essential to comply with the valid wiring diagram. Do not connect or start up the motor if this wiring diagram is missing. The relevant wiring diagrams are available from SEW-EURODRIVE free of charge.
Electrical Installation Connecting category 3G and 3GD motors 5.12.1 Motor connection Cage clamp With motors of size 63, the supply cables must be secured in the spring clamp terminal strip according to the wiring diagram. Connect the protective earth to the protective con- ductor connection so that the cable lug and housing material are separated by a washer: connection connection...
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Electrical Installation Connecting category 3G and 3GD motors Size 63 – Cage clamp With motors of size 63, the supply cables must be secured in the spring clamp terminal strip according to the wiring diagram. Connect the protective earth to the protective con- ductor connection so that the cable lug and housing material are separated by a washer: connection connection...
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Electrical Installation Connecting category 3G and 3GD motors Arrangement of terminal links for connection Motor size DVE250/280: [1] Terminal link [4] Terminal board [2] Terminal stud [5] Customer connection [3] Flange nut [6] Customer connection with split connection cable INFORMATION The terminal box must be free from foreign objects, dirt and humidity.
Electrical Installation Motors of category 2G, 2GD, 3D and 3GD 1139608587 [1] Hex nut [2] Washer [3] PE conductor with cable lug [4] Serrated lock washer [5] Stud [6] Terminal box 5.14 Motors of category 2G, 2GD, 3D and 3GD 5.14.1 General information The explosion-proof SEW-EURODRIVE motors are designed for use in the following zones:...
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Electrical Installation Motors of category 2G, 2GD, 3D and 3GD 5.14.3 Temperature classes The motors are authorized for temperature classes T3 or T4. The temperature class of the motor variants 3D and 3GD is listed on the nameplate or in the declaration of conformity in the appendix. The temperature class of the motor variants 2G and 2GD is listed in the type examina- tion certificate that is enclosed with each motor.
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Electrical Installation Motors of category 2G, 2GD, 3D and 3GD The following table shows the type of motor protection required according to the respec- tive approval: Category 2 (2GD / Gb Db or 2G / Gb) 3 (3GD / Gc Dc or 3G / Dc) Operation: •...
Electrical Installation Accessory equipment 5.14.8 Protection with motor protection switch and additional PTC thermistor The conditions stated for exclusive protection with motor protection switches also apply here. Protection with positive temperature coefficient thermistors (TF) only represents a supplementary protection measure which is irrelevant to certification for potentially ex- plosive atmospheres.
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Electrical Installation Accessory equipment Below figure shows the characteristic curve of the TF with reference to the rated re- sponse temperature (referred to as T R [Ω] 4000 1330 5470153483 5.15.2 Forced cooling fan /VE Motors in category II3D and II3GD can be equipped with a forced cooling fan as an op- tion.
Duty Types and Limit Values Permitted duty types Duty Types and Limit Values Permitted duty types Motor type and Protection against impermissi- Permitted duty type equipment cate- bly high temperatures exclu- gory sively through • eDR63 Motor protection switch • Heavy starting not possible II2G Motor protection switch and PTC...
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Duty Types and Limit Values Permitted duty types INFORMATION The maximum permitted rated motor voltage for frequency inverter operation is 500 V. Frequency inverters from SEW-EURODRIVE When using frequency inverters from SEW-EURODRIVE at line voltages of up to 500 V, the maximally permitted limit values of the motors are met.
Duty Types and Limit Values NOTES ON EXPLOSION PROTECTION • It is not permitted to connect more than one motor to one frequency inverter. • The voltage at the motor terminal board must projected be to prevent overheating. • If the motor voltage is too low (undercompensation), slip increases, which causes higher temperatures in the rotor of the motor.
Duty Types and Limit Values Safe operation of motors in category 3 Safe operation of motors in category 3 Project planning is the basic requirement for safe operation of explosion-proof motors. The following points have to be considered: • Adhere to the thermal torque limit characteristic curve •...
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Duty Types and Limit Values Safe operation of motors in category 3 6.3.3 Thermal limit characteristic curves – category 3GD Thermal limit char- Thermal limit characteristic curve for inverter operation of 4-pole AC motors and acteristic curves AC brakemotors in connection: rated 1.20...
Duty Types and Limit Values Soft-start units 6.3.4 Notes for safe operation General Install the frequency inverter outside the potentially explosive atmosphere. information Thermal motor Only motors that are equipped with a positive temperature coefficient thermistor (TF) are protection permitted for operation on a frequency inverter to ensure that the permitted limit temper- ature is not exceeded.
Startup Before startup Startup INFORMATION • Only qualified personnel is allowed to start up and operate the motors ob- serving the applicable accident prevention regulations and the information in these operating instructions. WARNING Danger of electric shock. Severe or fatal injuries! Observe the following notes.
Startup During startup During startup During startup, make sure that: • The motor is running properly (no overload, no speed fluctuations, no loud noises, etc.) • The proper braking torque is set according to the specific application (see chapter "Technical Data") In case of problems, refer to the "Malfunctions"...
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Startup Parameter setting: Frequency inverters for category 3 motors Maximum speed The maximum motor speed must be limited in the "System limits" window. Observe the following when you set the parameter maximum speed: • Maximum speed ≤ motor limit speed and •...
Startup Changing the blocking direction for motors with backstop Changing the blocking direction for motors with backstop [1] Fan guard [5] Felt ring [9] Sprags [2] Fan [6] Retaining ring [10] Equalizing ring [3] Cap screw [7] Tapped hole [4] V-ring [8] Driver 7.4.1 Dimension "x"...
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Startup Changing the blocking direction for motors with backstop Do not start up the motor in blocking direction (ensure proper connection of power supply with motor). Note the direction of rotation of the output shaft and the number of stages when mounting the motor on a gear unit. For inspection purposes, you can operate the backstop once in blocking direction with half the motor voltage.
Inspection / Maintenance Changing the blocking direction for motors with backstop Inspection / Maintenance WARNING Risk of crushing if the hoist falls or in the event of uncontrolled unit behavior. Severe or fatal injuries. • Secure or lower hoist drives (danger of falling) •...
Inspection / Maintenance Inspection and maintenance intervals NOTES ON EXPLOSION PROTECTION • Use only original spare parts from the relevant and valid spare parts lists; other- wise, the approval for hazardous locations of the motor will become void. • The routine test must be repeated whenever motor parts relating to explosion pro- tection are replaced.
Inspection / Maintenance Change the adapter plate Change the adapter plate The following figure shows the adapter plate: 259726475 Cage clamp Adapter plate Screws To prevent screws from loosening, secure the screws [3] that are used to attach the ® adapter plate [2] for size DR63/eDR63 motors using LOCTITE or a similar substance.
Inspection / Maintenance Mounting a VE forced cooling fan Mounting a VE forced cooling fan 1. Before installing the forced cooling fan [1], check to see that the fan wheel and the fan motor are not damaged. 2. After installation, turn the fan wheel to make sure that the fan wheel does not rub in any place.
Technical Data Maximum permitted overhung loads Technical Data Maximum permitted overhung loads The following table lists the permitted overhung loads (top value) and axial forces (bot- tom value) of explosion-proof AC motors: Permitted overhung load F Permitted axial force F [N];...
Malfunctions Malfunctions of the motor Malfunctions 10.1 Malfunctions of the motor Malfunction Possible cause Remedy Motor does not start up Supply cable interrupted Check connections, correct if necessary Fuse blown Replace fuse Motor protection tripped Check motor protection for correct setting, correct fault if necessary Motor protection does not switch, controller Check motor protection control, correct error...
Malfunctions Malfunctions during operation with a frequency inverter 10.2 Malfunctions during operation with a frequency inverter The symptoms described in chapter "Motor malfunctions" can also occur when the motor is operated with a frequency inverter. Please refer to the frequency inverter oper- ating instructions for the meaning of the problems that occur and to find information about rectifying the problems.
Declarations of Conformity Customer service Declarations of Conformity INFORMATION The EC prototype test certificate is provided with the drive. The notified body as well as the technical details are listed in the provided EC prototype test certificate. Operating Instructions – Explosion-Proof AC Motors DR63/eDR63, DVE250/280...
Declarations of Conformity AC motors DR.63 in category 3GD 11.2 AC motors DR.63 in category 3GD EC Declaration of Conformity 901160011 SEW-EURODRIVE GmbH & Co KG Ernst-Blickle-Straße 42, D-76646 Bruchsal declares under sole responsibility that the motors of the series DR63 category labeling...
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Index Installation, conditions..........16 Parameter setting Insulation resistance ..........17 Frequency inverters for category 3 ....43 Isolation transformer ..........17 PE connection............28 Protection device ...........34 PTC thermistor Categories 2GD and 3GD........33 Low-voltage equipment ..........23 Pulse voltage ............36 Maintenance ............47 Regeneration ............37 Malfunctions Removing a forced cooling fan ......50 Frequency inverter ..........54 Repairs ..............47 Motor..............53...
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Index Temperature class Transport ..............9 Category 2GD and 3GD........31 Type designation ...........13 Temperature sensor TF Temperature detection........14 Categories 2GD and 3GD........33 Type designation EDR Temperature sensor (TF) Connection variants ...........14 Categories 2GD and 3GD........33 Mechanical additions .........14 Temperature sensor / temperature detection..14 Motor series ............14 Terminal box Motors for hazardous locations......15...
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SEW-EURODRIVE—Driving the world SEW-EURODRIVE GmbH & Co KG Ernst-Blickle-Straße 42 76646 BRUCHSAL GERMANY Phone +49 7251 75-0 Fax +49 7251 75-1970 sew@sew-eurodrive.com www.sew-eurodrive.com...
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