They're two type of SEW motor, DT and DRE. DT old style motor has a round fan cover and DRE new style motor has a hexagonal fan cover. Checking the rectifier DT motor (white and red) wire reads 173 ohms, on a DRE motor reads 138 ohms. Between red and blue wires DT motor reads 518 ohms and DRE motor reads 660 ohms. If one or the other coil resistance reading is not correct, need to replace both rectifier and brake coil. If reading are good, since we know the rectifier has an input and no output the rectifier needs to be replace.
NORD DRIVESYSTEMS is one of the world's leading suppliers of full-scale, comprehensive drive solutions. NORD's portfolio ranges from standard drives to customized solutions for demanding application requirements, e.g. based on energy-efficient or explosion-protected drives. Subsidiaries and distributors in 89 countries around the world and an extensive service network ensure minimal lead times and provide customer-oriented services wherever needed on short notice. NORD’s wide variety of gear types covers torques from 10 Nm to 250 kNm and more. The company also supplies motors with outputs from .12 kW to 1,000 kW and manufactures frequency inverters up to 160 kW. NORD's inverter line-up features conventional models for installation in control cabinets as well as design types for fully integrated drive units in decentralized automation environments.
They're two type of SEW motor, DT and DRE. DT old style motor has a round fan cover and DRE new style motor has a hexagonal fan cover. Checking the rectifier DT motor (white and red) wire reads 173 ohms, on a DRE motor reads 138 ohms. Between red and blue wires DT motor reads 518 ohms and DRE motor reads 660 ohms. If one or the other coil resistance reading is not correct, need to replace both rectifier and brake coil. If reading are good, since we know the rectifier has an input and no output the rectifier needs to be replace.
NORD DRIVESYSTEMS is one of the world's leading suppliers of full-scale, comprehensive drive solutions. NORD's portfolio ranges from standard drives to customized solutions for demanding application requirements, e.g. based on energy-efficient or explosion-protected drives. Subsidiaries and distributors in 89 countries around the world and an extensive service network ensure minimal lead times and provide customer-oriented services wherever needed on short notice. NORD’s wide variety of gear types covers torques from 10 Nm to 250 kNm and more. The company also supplies motors with outputs from .12 kW to 1,000 kW and manufactures frequency inverters up to 160 kW. NORD's inverter line-up features conventional models for installation in control cabinets as well as design types for fully integrated drive units in decentralized automation environments.
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