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- FAQ > Drive Products > Inverters-FREQROL > FREQROL-A500 > Motor heat generation at low-speed operation
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Motor heat generation at low-speed operation
On the A500 series catalog for the FR-A540-3.7K, it is mentioned that continuous operation under 100% torque is possible up to 3 Hz with a constant-torque motor. In the SF-JRCA specifications, 3.7 kW is subject to totally enclosed fan-cooled operation.
Does this mean that operating the SF-JRCA 3.7 kW motor at 3 Hz continuously does not cause a heat generation problem?
Or, does the catalog just mention the standard specifications of the SF-JRCA and is it necessary to provide a specially ordered forced cooling fan when actually operating the motor continuously at 3 Hz?
Does this mean that operating the SF-JRCA 3.7 kW motor at 3 Hz continuously does not cause a heat generation problem?
Or, does the catalog just mention the standard specifications of the SF-JRCA and is it necessary to provide a specially ordered forced cooling fan when actually operating the motor continuously at 3 Hz?
- Category :
Answer
When using the FR-A540-3.7K in Advanced magnetic flux vector control, operating the motor continuously under the 100% torque at up to 3 Hz does not cause a heat generation problem.
You do not need to provide a specially ordered forced cooling fan.
Note that the 400 V specifications product of the SF-JRCA is a dedicated motor.
You do not need to provide a specially ordered forced cooling fan.
Note that the 400 V specifications product of the SF-JRCA is a dedicated motor.
- Product Name
- Inverter, magnet motor drive
- Product Category
- Inverter
- Series
- FR-A500
