arrangement IM V3 (IM 3031) and IM V6 (IM 1031) to IEC 60034-7 shall be sealed to prevent water entry to the machine via the shaft. Water and dirt collecting on the upper bearing end-shield shall not reduce performance and lifetime of the machine.When a motor is controlled by VSD (Variable Speed Drive), the motor must be variable frequency dedicated motor, related variable frequency information shall be reflected on the nameplate of the motor.