Drive out put current

Hello,

taking into account the prerequisites shown in catalogue D21.4, the following combinations are possible:

• Motor rated current higher than rated output current of the Power Module or Motor Module:
  In cases where a motor with a higher rated current than the rated output current of the Power Module or Motor Module is to be connected, the motor will only be able to operate under partial load. The following limit applies:
  The short-time current (= 1.5 × base-load current IH) should be higher or equal to the rated current of the connected motor. Adhering to this dimensioning rule is important because the low leakage inductance of large motors causes current peaks which may result in drive system shutdown or in continuous output limiting by the internal protective electronic circuitry.
• Motor rated current significantly lower than rated output current of the Power Module or Motor Module:
  With the vector control system used, the rated motor current must equal at least 1/8 of the rated output current of the Power Module or Motor Module. With lower motor currents, the drive can be operated in V/f control mode.