Definition and technical terms

This chapter provides information on various technical terms and their meaning.

Consider validity framework All data valid for 40 °C ambient temperature and 60 K overtemperature of the winding. The data can have a tolerance of +/- 10 %.

Peak force F_max [N]

Peak force at peak current I_max. The force that can be achieved depends on the peak output current of the servo terminal used. The peak force results in significant heating of the motor and may be delivered permanently for a maximum of 5 seconds; S5 operation.

Peak current I_max [A]

RMS value of the peak current at peak force F_max.

Continuous force F _c [N]

Available continuous force in S1 operation close to standstill at continuous current I_c.

Continuous current I_c [A]

RMS value of the continuous current at continuous force F_c.

Maximum velocity V_max [m/s]

Maximum velocity of the linear motor.

Force constant K_f [N/A]

Ratio of force to current while maintaining the design air gap.

Magnetic force of attraction F_a [N]

Force of attraction between magnetic plate and coil unit. Exists even when no current is flowing. Increases with the size of the coil unit and depends on the size of the air gap. See Chapter Air gap. Increases by up to 10% when the peak current is reached

Continuous power loss P_L [W]

Maximum power dissipation of the linear motor. Can be used for the calculation of the cooling systems.

Pole pair distance [mm]

Distance across a pole pair, north pole and south pole, of the magnetic plate.