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AC Motor DRE/DRS/DRP Series

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  Documentations for: AC Motor DRE/DRS/DRP Series
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Amortization calculation for energy efficient motors

Modular DR motor system
The new modular system of asynchronous AC motors from SEW-EURODRIVE is a ­development based on the established motor series. The new DR series AC motors combines the entire range of required motor efficiency levels as well as energy efficient motors making it a future-proof innovation of the highest quality.

In the development of energy efficient motors, SEW-EURODRIVE became the first ­company in the world to succeed in using die-cast copper technology in industrial high-volume series production in 2002. The modular DR motor system from SEW-­EURODRIVE offers three different brake sizes per motor size and as cost-optimized ­encoders integrated in the motor.

Alle other additional features of the new DR series are available in all energy efficiency levels.

The DR motor supports any energy efficiency standard worldwide and even already meets the upcoming IEC standard. They bring a whole range of unique benefits to planners and users. One single series for millions of drive combinations

AC Motor DRE/DRS/DRP Series
Minimizing losses
In an AC motor, electrical energy can never be converted into mechanical energy without any losses. The goal of many international regulations, directives and standards is to reduce these losses.

The two parts of the motor standard IEC 60034, part 2-1 and part 30, will provide an ­internationally uniform and accepted procedure for determining and classifying the level of efficiency of asynchronous AC motors.

The diversity (former part 2 of IEC60034, IEC 61972 or IEEE 112) will then be a thing of the past and manufacturers as well as users can be on the safe side.

DR motor types DRS, DRE and DRP surpass the required levels of efficiency and ­belong to classes IE1, IE2 and IE3.

AC motors of energy efficiency classes IE

 
DRS series
The DRS motor in the modular DR motor system is a motor that meets the standard efficiency level. The motors are marked with IE1 according to IEC 60034 T30.
Sizes
71 ... 225, 315
Lengths
K, S, M, MC, L, LC
Power 4-pole
0.75 ... 45, 110 ... 200 kW
Frequency
50, 60 and 50/60
Efficiency logo
Europe
EFF2
Australia/New Zealand (up to 0.75 kW)
EFF2

 
DRE series
The DRE motor in the modular DR motor system is a motor that meets High Efficency requirements. The motors are marked with IE2 according to IEC 60034 T30.
Sizes
80 ... 225, 315
Lengths
K, S, M, MC, L, LC
Power 4-pole
0.75 ... 45, 110 ... 200 kW
Frequency
50, 60 and 50/60
Efficiency logo
Europe
EFF1
Australia/New Zealand
EFF1
North America1
CSAe, ee

 
DRP series
The DRP motor in the modular DR motor system is a motor that meets ­Premium Efficency requirements. The motors are marked with IE3 according to IEC 60034 T30.
Sizes
90 ... 225, 315
Lengths
K, S, M, MC, L, LC
Power 4-pole
0.75 ... 37, 90 ... 160 kW
Frequency
50, 60 and 50/60
Efficiency logo
Europe
EFF1
Australia/New Zealand
EFF1
North America1
CSAe, ee

Modular brake system – The brake of your choice
The BE brake is based on the extremely successful BM(G) brake, but was further ­developed in many aspects. The brake size has so far been unalterably linked to the motor size. "Less" brake is only possible by reducing the braking torque with a modified brake spring.

The new combination options of DR motors with BE brakes are no longer subject to this unalterability. The DR motor can be combined with two or three different BE brake sizes.

Depending on the braking torque or braking work required, the DR motor can be ­combined with the ideal BE brake.

Brake mounting to motors size 90 and larger offers another special feature. The brake itself is mounted on a friction plate, which only has to be attached to the endshield. Without opening the motor, the unit can now be demounted and replaced – also by a larger or smaller brake.

Extract from the brake combination options

Motor type
Brake type
Wtot
Braking torque stepping
[106 J]
[Nm]
...
...
...
...
             
DR.90
BE1
120
5
7
10
         
BE2
165
 
7
10
14
20
     
BE5
260
     
14
20
28
40
 
DR.100
BE2
165
   
10
14
20
     
BE5
260
     
14
20
28
40
55
...
...
...
...
             

Built-In Encoders
The new built-in encoders are unique in the modular DR motor system. Instead of an external encoder mounted to the fan guard of the non-drive end, the encoder can now be installed between the endshield and the fan. This means that any extra length caused by mounted encoders is avoided.

3 variants are available:

Built-in encoder
EI7C
EI78
EI72
EI71
EI7S
AI7W
AI7N
Signal type
HTL (push-pull)
Sin/cos
RS-485 or CAN
Periods per r­evolution
A, B
24
6
2
1
24
4
n
C
0
0
0
0
0
   
DR motor sizes
71 ... 132
Connection
Terminal strip in the terminal box or 8-pin M12 connector

AC Motor DRE/DRS/DRP Series
Additional features
The additional features of the DR motor and DR brakemotor are diverse and extensive. To provide a better overview, they were combined in groups

Type
Description
Mechanical attachments
All versions that can be mounted to the DR motor using additional elements:
BE..
Brake with brake size, scaled in steps of 10 Nm
HF, HR
Manual brake release, lockable or automatic disengaging
/RS
Backstop instead of a brake
/MSW
MOVI-SWITCH®, integrated switching and protection function
/MM..
MOVIMOT®, integrated frequency inverter
Temperature sensor, temperature detection
All versions that are offered with additional elements in the winding:
/TF
3 Temperature sensors (positive coefficient thermistor or PTC resistor) connected in series
/TH
3 thermostats (bimetallic switches) in series
/KY
1 temperature sensor KTY84-130
/PT
1 or 3 temperature sensors (en) PT100
Ventilation
All versions in conjunction with cooling/ventilation on the DR motor:
/V
Forced cooling fan, IP66, AC voltage range or DC
/Z
Additional flywheel mass (flywheel fan)
/AL
Metal fan
/U
Non-ventilated (only without fan)
/OL
Non-ventilated (closed B side)
/LF
Air filter
/C
Protective cover
In-stock motors
All DR315 motors in conjunction with the bearing function:
/NS
Lubrication device
/ERF
Reinforced bearing for high overhung loads (only with NS)
/NIB
Insulated bearing (B-side)
Connection
All designs in conjunction with connection alternatives:
/IS
Integrated plug connector
/AS.., etc.
Installed plug connectors of all kinds
/KCC
Terminal strip with cage clamps
/KC1
C1-compliant connection of electrified monorail system (VDI RL 3643)
Encoders
All designs in conjunction with mounted encoders of various electrical interfaces:
/ES7*
Mount-on encoder DR71 ... 132
/EG7*
Mount-on encoder DR160 ... 225
/XV**
Mounting or encoder adapter of encoders not included in the SEW portfolio
Sensors
All designs in conjunction with condition monitoring:
/DUB
Brake monitoring for function and/or wear
/DUV
Vibration monitoring
Other
Other designs
/DH
Condensation drain hole
/2W
Second shaft end on the motor/brakemotor
/RI
Reinforced winding insulation for frequency inverter operation > AC 500 V


Product variants DRL/DRM/DRK

 
DRL motor
This motor is suited for high dynamic loads in addition to the high overload capacity of DR motors. This means the DRL motor fulfills all properties of an asynchronous servomotor.
The DRL motor in the modular DR motor system is a motor that meets the standard efficiency level. The motors are marked with IE1 according to IEC 60034 T30.
Dynamic 1
Dynamic 2
Dynamic 3
~ 200% Mdyn / MN
~ 300% Mdyn / MN
~ 350% Mdyn / MN
Torques MR
2.5 … 350 Nm
Sizes
71 ... 225
Lengths
S, M, MC, L, LC
Speed classes
1100, 1700, 2300, 3000 rpm

 
DRM motor
The DRM motor in the modular DR motor system is a 12-pole motor that allows for thermally safe operation on a 3-phase mains supply, even if the rotor is blocked. The usual product designation "torque motor" is also maintained for the DRM motor.
Every torque motor is available with 2 rated torques. Rating 2 can be three times the torque of rating 1 but either only in S3/15% cdf or in S1 continuous duty with forced cooling fan only.
Sizes
71 ... 160
Lengths
S, M, L
Rating 1
S1
0.4 ... 3 Nm
Rating 2
S3/15 or S1 with forced cooling fan
1.2 ... 9 Nm

 
DRK motor
The DRK motor in the modular DR motor system is a single-phase motor that can be operated on a single-phase power supply (instead on the usual three-phase power supply). The DRK motor comes equipped with operating capacitor CB.
Sizes
71 ... 160
Lengths
S, M, L
Power 4-pole
0.25 ... 1.5 kW
Frequency
50 Hz

 
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