Piemme Electric Motors

installation and commissioning

GENERAL CONDITIONS
The electric motor is a device that may cause hazards mainly of electrical nature. Therefore, if used in a wrong way, it can cause damages to persons, animals and things. Here below, we give you some pratical suggestions addressed to the qualified staff in charge of the installation and the commissioning of the motor.
Piemme Electric Motors declines every responsibility for the improper use of the motor or the lacked respect of the EEC Safety Directives concerning electrical material.

1. Check that the motor has not been damaged during transport. Remove any lock or protection used for transport; verify that the shaft turns freely.
2. Check carefully the correspondence between the nominal data of the nameplate and the features of the motor application.
3. Pay attention to the direct coupling and to the coupling with pulleys: an excessive force can permanently damage the motor bearings. In case of coupling with belt, in order to avoid damages and/or vibrations, a perfect parallelism between the axis of the motor and the pulley must be guaranteed.
4. In the assembly of the motor with feet (B3 shape), the same one must be fixed to a solid and perfectly flat surface. Indeed, the eventual deformations suffered by the feet during the screws fastening can cause their break.
5. In motors with B14 flange and through-holes, the length of the screws should be determined before they are fixed, so that the winding of the motor will not be damaged.

1. In order to prevent undesired voltage drops, assess that the power cables are adequately rated for full load and starting current in terms of capacity and isolation.
2. In order to safeguard the motor from overloads and short circuits it's advisable to employ appropriate circuits of protection. To such purpose, it's not recommended to use the fuses only.
3. Bond all equipment to earth in accordance with the standards in force.
4. Before coupling ensure that the direction of rotation is correct.