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Glossary
  • Active stator length

    Length of the electrical motor winding within the linear motor stator.

  • Force constant

    The force constant describes the relationship between phase current and the force released within the standard stroke range.

  • Linearity

    Maximum linearity error of the drive in relation to the maximum stroke of the linear motor when controlled by a LinMot Servo Drive.

  • Linearity ES

    Maximum linearity error when positioning the linear motor with a LinMot servo drive and an external position sensor system optionally available from LinMot.

  • Magnetic Period

    Distance from North Pole to North Pole is produced by magnets in the slider. Both the stator winding and the position sensors of a corresponding stator are based on this period length.

  • Magnetic slider length

    The magnetic slider length is the length of the magnet column in the slider.

  • Max. border force relative

    Maximum force applied by the motor at the ends of the extended stroke relative to the force in the standard stroke range.

  • Max. cont. currrent [Passive cooling / Fan / Fluid]

    Maximum continuous current values of the linear motor for different cooling variants at a temperature of the cooling medium of 25°C without exceeding the maximum winding temperature.

  • Max. cont. force [Passive cooling / Fan / Fluid]

    Maximum force which the linear motor can apply continuously at a coolant temperature of 25°C and different cooling variants without exceeding the maximum winding temperature.

  • Max. current @ 1x230VAC

    Maximum permissible phase current (Ipeak) at 1x230VAC supply voltage.

  • Max. current @ 3x400VAC

    Maximum permissible phase current (Ipeak) at 3x400VAC supply voltage.

  • Max. current @ 48VDC

    Maximum permissible phase current (Ipeak) at 48VDC supply voltage.

  • Max. current @ 72VDC

    Maximum permissible phase current (Ipeak) at 72VDC supply voltage.

  • Max. force @ 1x230VAC

    Maximum force of the linear motor when controlled with a LinMot Servo Drive at 1x230VAC supply voltage.

  • Max. force @ 3x400VAC

    Maximum force of the linear motor when controlled with a LinMot Servo Drive at 3x400VAC supply voltage.

  • Max. force @ 48VDC

    Maximum force of the linear motor when controlled with a LinMot Servo Drive at 48VDC supply voltage.

  • Max. force @ 72VDC

    Maximum force of the linear motor when controlled with a LinMot Servo Drive at 72VDC supply voltage.

  • Max. stroke / Extended stroke (ES)

    Maximum travel distance of the linear motor.

  • Max. velocity @ 1x230VAC

    Maximum speed of the linear motor when controlled with a LinMot Servo Drive at 1x230VAC supply voltage.

  • Max. velocity @ 3x400VAC

    Maximum speed of the linear motor when controlled with a LinMot Servo Drive at 3x400VAC supply voltage.

  • Max. velocity @ 48VDC

    Maximum speed of the linear motor when controlled with a LinMot Servo Drive at 48VDC supply voltage.

  • Max. velocity @ 72VDC

    Maximum speed of the linear motor when controlled with a LinMot Servo Drive at 72VDC supply voltage.

  • Max. winding temperature

    Maximum permissible winding temperature. When this temperature is reached, the drive motor must be switched off to prevent the motor from being damaged by overheating.

  • Moment of inertia (rotative)

    Moment of inertia of the rotating slider mass of a motor.

  • Motor type FC

    Liquid-cooled linear motor stators with integrated cooling coil for the cooling medium. These motors have a much higher power range than normal-cooled motors.

  • Motor type HP

    High-performance linear motors with identical dimensions and nearly twice the power density of standard motors.

  • Motor type LC

    New standard motor series, compatible with the previous standard motors.

  • Pole pitch

    Distance from North Pole to South Pole produced by magnets in the slider.

  • Position resolution

    The smallest deviation between actual and setpoint position detected by the LinMot Servo Drive when using the linear motor internal position sensor.

  • Position resolution ES

    The smallest deviation between the actual and target position detected by the LinMot Servo Drive when using the external linear sensor offered by LinMot as an accessory.

  • Repeatability

    Maximum deviation of the reached position in case of repeated approach to the same position under identical conditions. Repeatability of the rotary axes of the linear motors in closing processes.

  • Repeatability ES

    Maximum deviation of the reached position in case of repeated approach to the same position under identical conditions with external position sensors.

  • Slider

    The slider is the rod-shaped part of the motor which is pushed into the stator. The slider consists of a thin-walled stainless steel tube in which the motor magnets (permanent magnets) are accommodated.

  • Slider diameter

    Outer diameter of the linear motor slider.

  • Slider mass

    Weight of the slider.

  • Stall torque

    The torque that the rotary motor can apply permanently at standstill.

  • Standard stroke (SS)

    Stroke range in which the linear motor develops its greatest force, since all windings of the stator (active range) are in the magnetic field of the slider. The force in the standard stroke range is constant.

  • Stator

    The stator is the motor part of the linear motor in which the motor windings, position sensors, temperature monitoring and the electronic nameplate are integrated.

  • Stator design S

    Linear motors with particularly compact, short construction. In the type designation recognizable by an S (short) after the stator diameter.

  • Slider diameter

    Outer diameter of the linear motor slider.

  • Stator length [Connector type / Cable type]

    The length of the stator does not take into account the motor cable, the minimum bending radius for cable types or the connector for connector types.

  • Stator mass

    Mass of the stator (without slider).

  • Terminal inductivity

    Effective inductance between two motor winding connections.

  • Terminal resistance 25/Tmax °C

    Effective ohmic resistance between two motor winding connections at appropriate winding temperature.

  • Thermal resistance [Passive cooling / Fan / Fluid]

    Thermal resistance between stator winding and cooling medium of the corresponding cooling type. Determines the maximum heating at a given power loss.

  • Thermal time constant [Passive cooling / Fan / Fluid]

    Describes the typical reaction time for a temperature change of the stator with appropriate cooling mode.

  • Winding type in motors P10

    M, U, W: Depending on the winding type, different phase current values, force and voltage constants as well as maximum speed values (with a given DC link voltage) result for a given motor family.

  • Winding type in standard motors P01

    E, F, H: Depending on the winding type, different phase current values, force and voltage constants as well as maximum speed values (with a given DC link voltage) result for a given motor family.

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