SEW-EURODRIVE Products: AC Motor DRE/DRS/DRP/DRL Series

Products

> Modular DR motor system
> Minimizing losses
> AC motors of energy efficiency classes IE
> Modular brake system – The brake of your choice
> Built-In Encoders
> Additional features

Your advantages

Very simple configuration and ordering

All motor variants are configured from one single series

Power range

Standard motors: from 0.25 HP

High efficiency motors: 1.0 – 300 HP

Premium efficiency motors: 1.0 – 50 HP

More options, fewer restrictions

Compact design saves space and costs

Long life from both the environmental and regulatory viewpoint

Integration with gear unit means reduced costs for energy efficient motors. Energy efficient motors in efficiency classes: Standard Efficiency, High Efficiency, Premium Efficiency

Choice of different brake sizes means reduced costs: up to three brake sizes for each motor size

The built-in encoder is fully integrated into the motor

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 well-established DT/DV motor series. The new DR series AC motors combines the entire range of required motor efficiency levels including NEMA Premium^® energy efficient motors, making it a modern innovation of the highest quality.

In 2002, SEW-EURODRIVE became the first company to successfully use die-cast copper technology in an industrial high-volume production process for manufacturing energy efficient motors. 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.

All 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 EISA and IEC standards. They bring a whole range of unique benefits to planners and users. One single series for millions of drive combinations.

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 – 315
Lengths	K, S, M, MC, L, LC
Power 4-pole	(USA) 0.25 – 0.75 HP (Export) 0.75 – 200 kW
Frequency	50, 60 and 50/60
Efficiency Class	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 – 315
Lengths	S, M, MC, L, LC
Power 4-pole	1.0 – 300 HP
Frequency	50, 60 and 50/60
Efficiency Class	North America	CSAe, ee¹⁾
	Europe	EFF1
	Australia/New Zealand	EFF1

1) CC056A

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
Lengths	S, M, MC, L, LC
Power 4-pole	1.0 – 50 HP
Frequency	50, 60 and 50/60
Efficiency Class	North America	CSAe, ee¹⁾
	Europe	EFF1
	Australia/New Zealand	EFF1

1) CC056A

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 inflexibility. 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.

Excerpt from the brake combination options

Motor type	Brake type	W_tot	Braking torque stepping
Motor type	Brake type	[10⁶ J]	[lb-in]
...	...	...	...
DR.90	BE1	120	44	62	88
	BE2	165		62	88	124	177
	BE5	260				124	177	248	354
DR.100	BE2	165			88	124	177
DR.100	BE5	260				124	177	248	354	487
...	...	...	...

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.

The encoder is based on one mechanical design but allows for different functions and connection.

Three designs are available:

HTL signals in A+B tracks (+ negated)

Sin/cos signals in A+B tracks (+ negated)

Signals of the rotation counter as absolute value

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
Periods per revolution	C	0	0	0	0	0
DR motor sizes		71 ... 132
Connection		Terminal strip in the terminal box or 8-pin M12 connector

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
Bearings	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 options:
	/IS	Integrated plug connector
	/AS.., etc.	Installed plug connectors of various types
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


	Latest News: Availability of the new DR AC motors

	Operating Instructions: Drehstrommotoren DRS/DRE/DRP

	Catalogs: AC Motors DRS, DRE, DRP