Application | TOSHIBA INVERTER

Washing machines　［Commercial use］

Selection

When using high speed motors, the inverter capacity should be larger than the motor capacity.
When choosing inverters for washing machines, please pay attention to the following key points:
- Maximum frequency
- Minumum frequency
- Acceleration time
- Deceleration time

- Selection of number of motor poles
The load torque allowance of motors is decreasing at high speed.
EX:
Rated frequency: 60Hz
Operation frequency: 90Hz
  Load torque allowance: 100% / (90Hz / 60Hz) = 66.7%

NOTICE:
When you operate a motor at a speed that is too high for its base frequency, the motor may stall.
Please keep the following inverter selection for washing machines:
  [Motor rated current] x 1.05 < [Inverter rated current]
  [Load torque at high speed] < [Motor allowable torque at high speed]

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