If the rated capacity of the motor selected does not match that of the AC drive,
especially when the AC drive's rated power is greater than the motor's, adjust the motor
protection parameters on the operation panel of the AC drive or install a thermal relay in the
motor circuit for protection.
9. Altitude and de-rating
In places where the altitude is above 1000 m and the cooling effect reduces due to thin air, it
is necessary to de-rate the AC drive.
10. Protection class
DGI900 protection level is IP20 when inverter with keypad.
Fig 1-3. Inverter output current derating and Altitude