Technical terms

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 drive 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 attractive force F_a [N]

Attractive force between magnetic plate and coil part. Exists even when no current is flowing. Increases with the size of the coil part 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 dissipation P_c [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.

Air gap [mm]

Distance between magnetic plate and coil part. Must be observed during assembly to achieve the specified values of the linear motor.