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GainThe numeric value of an adjustment of the controller’s reaction (response) when controlling the servo motor. Generally, the higher the gain the faster the response, and the lower it is the slower the response.GantryA type of two-axis (X and Y) assembly in which a support guide is mounted to support the Y-axis, so that heavier objects can be carried on the Y-axis.GreaseHigh-viscosity oil applied to contact surfaces to make the guide and the ball screw move smoothly.GreasingInjection or application of grease to sliding parts.GuideA mechanism for guiding (supporting) the slider of the actuator. A bearing mechanism that supports linear motions.Guide moduleAn axis in a two-shaft assembly that is used in parallel with the X-shaft to support the end of the Y-shaft when the Y-shaft overhang is long. Typical models include the FS-12WO and FS-12NO.HomeReference point for actuator operation. The pulse counts are determined and recorded for all positions the actuator moves to / from home.Home accuracyThe amount of variation among the positions when home return is performed (if home varies, all positions vary).Key slottedA rotary shaft or mounting component is machined with a slot for key mounting.(Key: One means of preventing positional slip in the rotation direction of the rotary axis and the mounting component)LeadThe lead of the feed screw is the distance moved after the motor (hence the feed screw) has rotated one turn.Understanding lead valueThe lead value changes the actuator speed and thrust.Speed: With an AC230V servo motor, the rated rpm is 3000rpm. In other words, this is 50 revolutions per second. In this case, with a 20mm screw lead,the speed is 50 revolutions/s×20mm/revolution = 1000mm/s.Thrust: If the lead is large, then the thrust is small; and vice-versa.Load capacity (Payload)The weight of objects that can be moved by the actuator's slider or rod.Lost Motion [mm]First, for one position, run with positioning straight in front and then measure that position. Next, make a movement in the same direction by issuing a command. Then, issue the same command for movement in a negative direction from the position. Conduct positioning in the negative direction and measure that position. Again, issue a command for a movement in the negative direction, and issue the same command for a positioning movement straight ahead from that position. Then measure that position.Using this method, repeat measurement in positive and negative directions, seven times each. Conduct positioning for each and obtain the deviation from the average value for each stop position. Determine the position for the center of the movements in these measurements and positions nearly at both ends. The measurement value will be the maximum value among those obtained. (Complies with JIS B6201)Mechanical endPosition where actuator slider comes to mechanical stop. Mechanical stopper. (Example: Urethane rubber)OfflineA state in which the PC software is started without the RS232 cable connected to the controller.Technical InformationTechnical Reference/Information Appendix: - 20