EXG – Explosion-Proof Drives 541 12 20 21 22 Key to the data tables Technical Data of Explosion-Proof AC Brakemotors 4 5 6 7 8 9 10 11 12 13 14 15 12 17 18 19 20 21 22 EXG 12 Technical Data of Explosion-Proof AC Brakemotors 12.1 Key to the data tables The following table lists the short symbols used in the "Technical Data of DR AC Brake- motors" tables. P N Rated power M N Rated torque n N Rated speed I N Rated current cosϕ Power factor η 50% Efficiency at 50% of the rated power η 75% Efficiency at 75% of the rated power η 100% Efficiency at 100% of the rated power I A /I N Starting current ratio M A /M N Starting torque ratio M H /M N Ramp-up torque ratio m Weight of the motor J mot Mass moment of inertia of the motor BE.. Brake used Z 0 BG Switching frequency for operation with BG brake controller Z 0 BGE Switching frequency for operation with BGE brake controller M B Braking torque m B Weight of the brakemotor J MOT_BE Mass moment of inertia of the brakemotor
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EXG – Explosion-Proof Drives 541
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Key to the data tablesTechnical Data of Explosion-Proof AC Brakemotors
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EXG12 Technical Data of Explosion-Proof AC Brakemotors12.1 Key to the data tables
The following table lists the short symbols used in the "Technical Data of DR AC Brake-motors" tables.
PN Rated power
MN Rated torque
nN Rated speed
IN Rated current
cosϕ Power factor
η50% Efficiency at 50% of the rated power
η75% Efficiency at 75% of the rated power
η100% Efficiency at 100% of the rated power
IA/IN Starting current ratio
MA/MN Starting torque ratio
MH/MN Ramp-up torque ratio
m Weight of the motor
Jmot Mass moment of inertia of the motor
BE.. Brake used
Z0 BG Switching frequency for operation with BG brake controller
Z0 BGE Switching frequency for operation with BGE brake controller
MB Braking torque
mB Weight of the brakemotor
JMOT_BE Mass moment of inertia of the brakemotor
542 EXG – Explosion-Proof Drives
12 Technical data of 4-pole explosion-proof energy efficient motorsTechnical Data of Explosion-Proof AC Brakemotors
12.2 Technical data of 4-pole explosion-proof energy efficient motorsCategory: ATEX 2G, 2GD, 400 V, temperature class: T3, max. surface temperature: 120 °C
MotortypPN MN nN
INSpg.-Ber. ±5%
cosϕ IE-Klasse
η50%η75%η100%
IA/INMA/MN
MH/MNm tE
kW Nm 1/min A % kg s
EDRS 71S 4 0.25 1.7 1405 0.86 0.67 ––––
3.7 2.22.1 7.8 50
EDRS 71M 4 0.37 2.55 1375 1.05 0.76 ––––
3.9 2.62.5 9.1 60
EDRS 80S 4 0.55 3.7 1415 1.36 0.81 ––––
5.1 2.11.8 11.5 30
EDRE 80M 4 0.75 5 1435 1.76 0.79 IE279.281.381.0
6.1 2.82.1 14.3 30
EDRE 90M 4 1.1 7.4 1420 2.6 0.79 IE282.583.582.4
6.1 2.82.3 18.4 20
EDRE 90L 4 1.5 10 1430 3.5 0.77 IE283.584.784.0
6.9 3.22.8 21.4 16
EDRE 100M 4 2.2 14.7 1425 4.9 0.80 IE286.386.785.4
Check List and Inquiry Form for Explosion-Proof DrivesAppendix
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Price Catalog13 Appendix13.1 Check List and Inquiry Form for Explosion-Proof Drives
The following check list will help you to determine the necessary information for specify-ing the unit properties and unit categories of drives that are used in potentially explosiveatmospheres.
Check list for explosion-proof drives
Step Criterion Condition DecisionConti-nue with step
1 Potentially explosive mixture of air andGas 2
Dust 7
For gas
2 Drive will be installed in Zone 1 3
Zone 2 5
3 In the case of zone 1, the protection type of the motor is pre-scribed by the customer as
Flameproof enclosure (d) 4
Increased safety (e) 5
4 In the case of motors with flameproof enclosure, design of the terminal box (TB)
TB with flameproof enclosure (d)5
TB with increased safety (e)
5 Group specification
IIA
6IIB
IIC
6 Temperature class (for gas/air mixtures)
T3
9T4
T5 (only with flameproof enclosure)
T6 (only with flameproof enclosure)
For dust
7 Drive will be installed in
Zone 21
8Zone 22 (flammable lint)
Zone 22 (non-conducting dust)
Zone 22 (conducting dust)
8 Maximum permitted surface temperature (for dust/air mix-tures)
T120 °C
9T140 °C
T150 °C (only for synchronous servo gearmotors)
Company address
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Ms. / Mr.
Company
Department Place, date
546 EXM1 – Explosion-Proof Drives
13 Check List and Inquiry Form for Explosion-Proof DrivesAppendix
Notes on the individual items:Step 1Categorization of the potentially explosive atmosphere into gas or dust.
Step 2Zone categorization according to the installation location of the drive. The owner isresponsible for the zone categorization according to directive 99/92/EC. Assistance canbe obtained from the TÜV (German Technical Control Board), German Institutions forStatutory Accident Insurance and Prevention or expert offices:• Zone 1: Potentially explosive gas mixtures are to be expected in normal operation.• Zone 2: Potentially explosive gas mixtures are not to be expected in normal operation
and if they occur at all, then only briefly.
Step 3Protection types of the motor for use in zone 1.• Flameproof enclosure (d)
Potentially explosive mixtures can penetrate the equipment, the mixture inside thehousing can be ignited → Design measures prevent ignition of the externalatmosphere
• Increased safety (e)Potentially explosive mixtures can penetrate the equipment, no sources of combus-tion in or on the equipment → No ignition of the gas mixture.
Step 4Design of the terminal box in the case of motors with flameproof enclosure with protec-tion type• Flameproof enclosure (d)
When this terminal box version is selected, it is essential to take account of the per-mitted cable bushings (conduit system, cable glands, etc.). In addition, the threadtype of the screw fitting (ISO or NPT) must be specified.
• Increased safety (e)When this terminal box version is selected, the cable entry design can be simpler. Itis merely necessary to use an Ex-certified screw fitting.
Step 5Group II is divided into 3 subgroups according to substance. • All protection types
Electrostatic requirements for plastic surfaces (including paint). As a consequence,the EX designation of protection types "e" and "nA" (previously II) is changed to IIA,IIB or IIC, depending on the plastic surfaces or paint used.
• Additionally for flameproof enclosure (d)Here, the subgroup determines the parameters of the ignition gap.
Refer to the relevant published tables, e.g. Nabert/Schön, "Kennzahlen brennbarerGase und Dämpfe" ("Classifications of flammable gases and vapors"), Deutscher Eich-verlag GmbH, D-38102 Braunschweig, Germany.
EXM1 – Explosion-Proof Drives 547
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Check List and Inquiry Form for Explosion-Proof DrivesAppendix
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Step 6Each of the temperature classes represents the assured maximum surface tempera-tures of the drive. For information about the temperature classes of the hazardousmaterials, refer to step 5:• T3: Max. permitted surface temperature: 200 °C• T4: Max. permitted surface temperature: 135 °C• T5: Max. permitted surface temperature: 100 °C• T6: Max. permitted surface temperature: 85 °C
Step 7Zone categorization according to location where the drive is used. According to Directive99/92/EC, the owner is responsible for the zone categorization. Assistance can beobtained from the TÜV (German Technical Control Board), German Institutions forStatutory Accident Insurance and Prevention or expert offices:• Zone 21: Potentially explosive dust/air mixtures are to be expected in normal opera-
tion.• Zone 22: Potentially explosive dust/air mixtures are not to be expected in normal
operation and if they occur at all, then only briefly.Group III is divided into 3 subgroups according to substance.
Step 8The maximum surface temperature of a drive in dust/air mixtures. The value is specifiedin °C. The maximum surface temperature of synchronous servo gearmotors is 150 °C.For information about this, refer for example to: BIA-Report "Brenn- und Explosions-kenngrößen von Stäuben" (Report no. 3051 of BG Institute for Occupational Safety,"Combustion and explosion characteristics of dusts"), Hauptverband der gewerbl.Berufsgenossenschaften, D-53757 St. Augustin, Germany
Group Suitable for atmospheres with Minimum degree of protection IP
IIIA Flammable lint 5x
IIIB Non-conducting dust 5x
IIIC Conducting dust 6x
548 EXM1 – Explosion-Proof Drives
13 Check List and Inquiry Form for Explosion-Proof DrivesAppendix
Inquiry form for explosion-proof drives
Customer data Company: Customer no.: Department Name Phone: Street / P.O. Box: Fax: Zip code/city: E-mail: Your contact person at SEW-EURODRIVE Name: Phone: Technical office: Fax: Technical data Quantity: Desired delivery date: Catalog designation: Gear unit type
Helical gear unit Parallel-shaft helical gear unit
1-shift operation 2-shift operation 3-shift operation Regular Irregular Very irregular
Mounting position Housing typeM1
M2
M3
M4
M5
M6
Pivoted
Foot-mounted Flange (bore) Flange (thread)
Torque arm Other: Shaft design
Solid shaft with key Shrink disk Shaft/hollow shaft Ø mm Hollow shaft with key TorqLoc® Flange Ø mm
Shaft position (angular gear unit) Terminal box position Cable entry A B AB 0° (R) 90° (B) 180° (L) 270° (T) X 1 2 3
Degree of protection Thermal class Surface/corrosion protection
IP54 IP55 IP65 130 (B) 155 (F) KS OS1 OS2 OS3 OS4 Line voltage: V Line frequency:
50 Hz 60 Hz Connection type:
� Y
For inverter operation Max. frequency: Hz Control range: Motor cable length: m Required options Other options:
Brake Voltage: V Braking torque: Nm Manual brake release HR HF Forced cooling fan Forced cooling fan voltage: V Motor protection: TF Encoder
Inverter RAL 7031 RAL
Special ambient conditions Temperature from °C to °C Operation outdoors Installation altitude > 1000 m above msl Other ambient conditions:
Miscellaneous:
EXM1 – Explosion-Proof Drives 549
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Cable dimension units according to AWGAppendix
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13.2 Cable dimension units according to AWGAWG stands for American Wire Gauge and refers to the size of the wires. This numberspecifies the diameter or cross section of a wire in code. This type of cable designationis usually only used in the USA. However, the designations can also be seen in catalogsor data sheets in Europe.
AWG designation Cross section in mm2
000000 (6/0) 185
00000 (5/0) 150
0000 (4/0) 120
000 (3/0) 90
00 (2/0) 70
0 (1/0) 50
1 50
2 35
3 25
4 25
5 16
6 16
7 10
8 10
9 6
10 6
11 4
12 4
13 2.5
14 2.5
15 2.5
16 1.5
16 1
18 1
19 0.75
20 0.5
21 0.5
22 0.34
23 0.25
24 0.2
550 EXG – Explosion-Proof Drives
Index
13.3 IndexAAC motors
Mounting position designations ....................86Adapters for mounting IEC motors ....................111Adapters for mounting NEMA motors ...............114Adapters for mounting servomotors ..................116Additional documentation ............................... 8, 41Additional features ..............................................30Additional service factor, helical-worm gear unit ..............................................................49Available torque arms .......................................119Axial loads ...........................................................51
CCategories, division .............................................13Category /2GD T3 .............................................128Category /3GD T3 .............................................228Churning losses ........................................... 45, 60Connection variants ............................................30Corrosion protection ............................................22Covers, fixed .....................................................123
Ddeclaration of conformity .....................................14Designation code in accordance with EU Directive 94/9/EC ..........................................18Designation of the mounting positions
Six mounting positions M1-M6 .....................55Dimension sheets
Required data ...............................................41Drive technology in accordance with EU Directive 94/9/EC ...................................11
EEfficiency of SEW gear units ...............................44Encoder ...............................................................30Equipment groups, classification ........................13EX labeling of motors ..........................................10Explosion protection designation ..........................9Explosion-proof AC brakemotors ......................541
Technical data ............................................541
Explosion-proof motors ...................................... 30Extended storage, gear unit ............................... 24
FFastening the gear unit .................................... 119Flange block shaft ............................................ 103Flange contours
FAF.., KAF.., SAF.. and WAF.. .................. 122FF.., KF.., SF.. and WF.. ............................ 121RF.. and R..F ............................................. 120
Helical-worm gearmotorsDimension sheets ...................................... 489Mounting positions ....................................... 74Selection tables /2GD T3 ........................... 211Selection tables /3GD T3 ........................... 312
Hollow shaft, shouldered with shrink disk ........ 104
IInstallation of gear units with hollow shaft and key
Provided fastening parts .............................. 96Installing gear units with hollow shaft and key
SEW installation/removal kit ........................ 97
EXG – Explosion-Proof Drives 551
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KKey to the mounting position sheets ...................60KS corrosion protection .......................................22
LLabeling of motors ..............................................10Lubricants
Fill quantities .................................................90General information ......................................87Lubricant table ..............................................89Rolling bearing greases ................................88
Multi-stage gear units ..........................................20Multi-stage gearmotors .......................................47
OOil expansion tank ..............................................46Options
Unit designation ............................................28Order information
Examples ......................................................59Output direction of rotation with backstop ....56Position of output end in right-angle
gear units ............................................................57Position of output shaft and output flange ....56
Other additional features .....................................30Output types ........................................................29Overhung loads ...................................................51
PParallel shaft helical gearmotors
Dimension sheets .......................................379Selection tables /3GD T3 ............................265
Parallel-shaft helical gearmotorsMounting positions ........................................66Selection tables /2GD T3 ............................165Variants ........................................................33
Permitted axial load ............................................52Permitted overhung load .....................................51Position of the terminal box and cable entry .......58Potentially explosive atmospheres ......................13Potentially explosive atmospheres, zones ..........12Product description, general notes .....................19Product groups ......................................................6
Project planning for drivesDrive selection data ..................................... 41
Project planning for gear units ........................... 44Churning losses ........................................... 45Efficiency of gear units ................................. 44Force application, definition ......................... 52Multi-stage gear units .................................. 47Off-center force application,
gear unit constants ............................................. 54Self-locking helical-worm of
Spiroplan® gear units ......................................... 44Service factor ............................................... 48
Project planning procedure for inverter operation ............................................... 43Project planning procedure for supply system operation .................................... 42Protection type c constructional safety ............... 16Protection type d flameproof enclosure .............. 15Protection type e increased safety ..................... 15Protection type k liquid immersion ..................... 16Protection type n ................................................ 17Protection type t ................................................. 17Protection types ................................................. 14Protection types ................................................. 14
RReduced backlash gear units ....................... 20, 95Removal of the gear units with hollow shaft and key
With the SEW installation/removal kit .......... 99RM gearmotors .................................................. 21Rolling bearing greases ..................................... 88
SSample type designation for a DR gearmotor .... 31Selection tables
Helical gearmotors /2GD T3 ...................... 128Helical gearmotors /3GD T3 ...................... 228Helical-bevel gearmotors /2GD T3 ............ 187Helical-bevel gearmotors /3GD T3 ............ 287Helical-worm gearmotors /2GD T3 ............ 211Helical-worm gearmotors /3GD T3 ............ 312Parallel shaft helical gearmotors /3GD T3 . 265Parallel-shaft helical gearmotors /2GD T3 . 165Spiroplan® gearmotors /2GD T3 ............... 224Spiroplan® gearmotors /3GD T3 ............... 325
Self-locking helical-worm or Spiroplan® gear units ........................................................... 44Service factor
Determining the service factor ..................... 48SEW service factor fB .................................. 49
SEW-EURODRIVEGroup of companies ...................................... 5Products ......................................................... 6Systems ......................................................... 6
552 EXG – Explosion-Proof Drives
Index
Spiroplan® gear unit ...........................................28Spiroplan® gearmotors .......................................21
Dimension sheets .......................................524Selection tables /2GD T3 ............................224Selection tables /3GD T3 ............................325Variants ........................................................39
SPIROPLAN® .....................................................80Surface protection ...............................................22Surface protection OS .........................................23
TTechnical data
AC motors eDR63, DV.250 / protection type e, category II2G ........................544
AC motors eDR63, DV.250 / protection type nA, category II3GD ...................544Technical data category
TorqLOC® mounting system ............................102Torque ...............................................................119Type designation
AC motors and options .................................29Gear unit and options ...................................26Helical-bevel gear unit ..................................27Spiroplan® gear unit .....................................28Temperature detection .................................29Temperature sensor .....................................29
UUnit designation
Encoder ........................................................30Helical gear unit ............................................26Helical-worm gear unit ..................................27Mechanical attachments ...............................29Options .........................................................28Parallel-shaft helical gear unit ......................26
Unit designation DRConnection variants ......................................30