High Performance Electric Actuator Cycle time can be reduced. Cycle time compared with the existing model∗1 ∗1 When LEFS25FH-400 is operated from 0 to 400 mm. Acceleration/ Deceleration % increase compared with the existing model) % compared with the existing model) Existing model High Performance Parallel I/O Step Motor Controller Higher acceleration and maximum speed can be set with the special controller (for LEFS२F Series).

Electric Actuator/Slider Type High Performance Step Motor (Servo/24 VDC) Ball Screw Drive/LEFS२F Series Model Selection Selection Procedure Step 1 Check the work load– speed. Step 2 Check the cycle time. Check the allowable moment. Selection Example țWorkpiece mass: 10 [kg] țSpeed: 300 [mm/s] țWorkpiece mounting condition: Work load: W [kg] Operating conditions țMounting orientation: Horizontal upward Step 1 Check the work load–speed. (pages 2 to 5) Select a model based on the workpiece mass and speed while referencing the speed–work load graph. Selection example) The LEFS25FA-200 can be temporarily...

Model Selection High Performance Step Motor (Servo/24 VDC) Speed–Work Load Graph (Guide) Model Selection ∗ The following graphs show the values when moving force is 100 %. LEFS16FA/Ball Screw Drive Horizontal/Lead 10 Auto Switch LEFS16FB/Ball Screw Drive Horizontal/Lead 5

LEFS२F Series High Performance Step Motor (Servo/24 VDC) Speed–Work Load Graph (Guide) ∗ The following graphs show the values when moving force is 100 %. LEFS25FH/Ball Screw Drive Horizontal/Lead 20 LEFS25FA/Ball Screw Drive Horizontal/Lead 12 LEFS25FB/Ball Screw Drive Horizontal/Lead 6

Model Selection High Performance Step Motor (Servo/24 VDC) Speed–Work Load Graph (Guide) Model Selection ∗ The following graphs show the values when moving force is 100 %. LEFS32FH/Ball Screw Drive Horizontal/Lead 24 Auto Switch LEFS32FA/Ball Screw Drive Horizontal/Lead 16 LEFS32FB/Ball Screw Drive Horizontal/Lead 8

LEFS२F Series High Performance Step Motor (Servo/24 VDC) Speed–Work Load Graph (Guide) ∗ The following graphs show the values when moving force is 100 %. LEFS40FH/Ball Screw Drive Horizontal/Lead 30 LEFS40FA/Ball Screw Drive Horizontal/Lead 20 LEFS40FB/Ball Screw Drive Horizontal/Lead 10 Acceleration: 3000 mm/s2 Work load: W [kg]

Model Selection High Performance Step Motor (Servo/24 VDC) Load overhanging direction Auto Switch m : Work load [kg] Me: Dynamic allowable moment [N·m] L : Overhang to the work load center of gravity [mm] Model Selection ∗ This graph shows the amount of allowable overhang (guide unit) when the centre of gravity of the workpiece overhangs in one direction. Dynamic Allowable Moment

LEFS२F Series High Performance Step Motor (Servo/24 VDC) ∗ This graph shows the amount of allowable overhang (guide unit) when the centre of gravity of the workpiece overhangs in one direction. Dynamic Allowable Moment Orientation Load overhanging direction m : Work load [kg] Me: Dynamic allowable moment [N·m] L : Overhang to the work load centre of gravity [mm] Calculation of Guide Load Factor 1. Decide operating conditions. Acceleration [mm/s2]: a Model: LEFS२F Work load [kg]: m Size: 25/32/40 Work load centre position [mm]: Xc/Yc/Zc Mounting orientation: Horizontal/Bottom/Wall/Vertical 2....

Model Selection High Performance Step Motor (Servo/24 VDC) Model Selection Table Accuracy (Reference Value) A side Travelling parallelism [mm] (Every 300 mm) Model w D side travelling q C side travelling parallelism to A side parallelism to B side 0.03 ∗ Travelling parallelism does not include the mounting surface accuracy. (Excludes when the stroke exceeds 2000 mm) Auto Switch Table Displacement (Reference Value) 0.08 Load W [N] ∗ This displacement is measured when a 15 mm aluminium plate is mounted and fixed on the table. ∗ Check the clearance and play of the guide separately. Overhang Displacement...

High Performance Electric Actuator/Slider Type Ball Screw Drive LEFS२F Series !2 For details on controllers, refer to page 24. Basic type High-precision type e Motor mounting position — Applicable size High performance (Step motor 24 VDC) Compatible controllers Note Applicable stroke None With (Includes 1 mounting bracket) o Grease application (Seal band part) — N With Without (Roller specification) Without option With lock Housing B bottom∗6 Body bottom 2 locations Standard cable [m] None — 1.5 S1 Body bottom

High Performance Electric Actuator/Slider Type Ball Screw Drive Model Selection !2 Controller Without controller With controller C6H7 3 I/O cable length Screw mounting DIN rail Parallel I/O (NPN) type Parallel I/O (PNP) type Number of axes/Special specification H 1 axis/High performance type ∗1 Please consult with SMC for non-standard strokes as they are produced as special orders. ∗2 Excluding the LEFS16 ∗3 If 2 or more are required, please order them separately. (Part no.: LEF-D-2-1 For details, refer to the Web Catalogue.) ∗4 The auto switches must be ordered separately. (For details, refer...

LEFS२F Series Specifications LEFS16F Actuator specifications Stroke range Max. acceleration/deceleration Horizontal [mm/s2] Vertical Positioning repeatability Basic type [mm] High-precision type Basic type High-precision type Actuation type Ball screw Guide type Linear guide Operating temperature range [°C] Operating humidity range [%RH] Lock unit specifications Electric specifications Motor size Motor type Encoder Incremental A/B phase (800 pulse/rotation) 24 VDC ±10 % Rated voltage [V] Standby power consumption when operating [W]∗5 Max. power consumption [W]∗6 Type∗7 Holding force [N] Power consumption...

High Performance Electric Actuator/Slider Type Ball Screw Drive Additional weight with lock [kg] Additional weight with lock [kg] Additional weight with lock [kg] Model Selection Additional weight with lock [kg] Auto Switch