SEW EURODRIVE
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DR…J series AC motors (LSPM* technology)
DR.. series:
DR…J design (LSPM* technology)
*Line Start Permanent Magnet Motor
Features – The DR..J synchronous motor design (LSPM technology) is integrated in the DR.. series modular motor system and is designed in the sizes 71S to 100L. The technology is based on adding per- manent magnets below the squirrel cage of AC asynchronous motors
– One motor – three variants – three energy efficiency classes:
DR…J motors are available in the energy-efficient designs DRE..J (IE2), DRP..J (IE3) and DRU..J (IE4) with LSPM technology
– This is indicated by a “J” following the length designation
– Compared to series motors with the same power range, the same energy efficiency class is achieved with a smaller size of the DR…J motors (LSPM technology)
– Compact and robust design
– Synchronous running of the motors with operating frequency
– Slip-free speed control without encoder feedback
– No rotor losses occur during operation:
- High efficiency from IE2 to IE4
- Compact design compared to standard asynchronous motors
– DR.. J LSPM motors can be operated with the frequency inverters MOVITRAC LTE-B and MOVITRAC LTP-B, MOVITRAC B, MOVIFIT FC, and MOVIMOT D
– Can be used as individual or group drive with a frequency inverter
– Many additional features of the modular motor system are available
– Can be combined with the 7-series of the modular gear unit system from SEW-EURODRIVE
– Constant torque CT in the speed setting range without forced cooling fan
