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LA Series Linear Actuator Manual 

 

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Chapter 1    Overview of the LA series 

The LA series actuators (DC motor model) are linear actuators incorporating a precise ball screw, a DC motor for 

closed-loop positioning, and a Harmonic drive

 component having small size, high precision, and no backlash.   

With a dedicated control unit, the actuators offer remarkable preciseness in positioning and the smoothest motion 

from top speed to extremely low speed responding to input signals. 

1-1    Features 

◆ 

Ultra-high positioning accuracy in sub-micron-meter-meter order

 

◆ 

High repeatability in positioning 

◆ 

High thrust, small size 

    Closed-loop positioning 

 

    Low vibration, No skip step, Low heat radiation 

    Long travel 

 

1-2    Ordering information 

 

   

 

 

 

 

 

                                                                                             

 

 

 

 

 

 

 

 

30 

32 

 

10 

30 

LA-30 B-10-F-L 

Linear actuator: LA series 

 

Frame Number:

 

 

Version Code: 

Stroke(mm):

     

   

Mounting: 

   

Flange mount 

 

Encoder output type 

   

 

          L:Line driver type 

          None:Open collector type 

 

Summary of Contents for LA Series

Page 1: ...ting the equipment so as to prevent an accident resulting in a serious physical injury damaged by a malfunction or improper operation Product specifications are subject to change without notice for im...

Page 2: ...ing instruction manuals Align the shaft of actuator and motors with the applied equipment precisely following the relating instruction manuals Secure the output rod output shaft of the actuator to the...

Page 3: ...not touch a terminal after at least five minutes from power OFF Even after power OFF electric charge remains in the control unit To avoid an electric shock accident inspection must start after five m...

Page 4: ...apter 2 Notices at system design and on usage 9 2 1 Environment 9 2 2 Fundamental notices on usage 9 2 3 Actuator installation 9 2 4 Load direction 10 2 5 Stroke limits 10 Chapter 3 Connections 12 3 1...

Page 5: ...er remarkable preciseness in positioning and the smoothest motion from top speed to extremely low speed responding to input signals 1 1 Features Ultra high positioning accuracy in sub micron meter met...

Page 6: ...A 30B 10 F Unit mm LA 32 30 F 10 10 143 133 2 5 5 11 28 21 9 21 28 o23 h7 o23 o27 o10 0 0 021 L 300mm 0 08mm 2 L 300mm 0 08mm 2 4 o3 4 40 36 28 150 8 30 164 1 4 2 7 8 5 5 5 13 3 9 10 36 o10 28 L 300mm...

Page 7: ...C02 1C22 Rated voltage DC 12V Rated current 0 5 A Excitation Permanent Magnet Insulation class B class Withstand voltage AC 500V 1 minute Insulation resistance 100M or more by DC500V insulation tester...

Page 8: ...1k 0 1 S Max RL 1k Signal fall time 1 S Max RL 1k 0 1 S Max RL 1k Max response frequency 100kHz Light source LED Line Driver Output Circuit Open Collector Output Circuit Colors of Encoder Cables Cabl...

Page 9: ...motion 1 mm 5 m or less Note Measuring temperature 20 C 1 C 1 6 Testing system and standards for testing 1 6 1 Testing system The LA series linear actuators are guaranteed with the following tests und...

Page 10: ...seven times in total Then seven positions P1 P2 P7 are measured The repetitive accuracy is obtained as a half of difference from the maximum measured value to the minimum value 2 Full stroke position...

Page 11: ...of the maximum error and the minimum error 4 Lost motion A Actuator rod moves toward pushing direction until the stroke center The position is named A0 B Form A0 the rod moves 1mm toward pushing dire...

Page 12: ...es Linear Actuator Manual 8 1 7 Allowable loads Allowable loads to the output rod are as follows Load Allowance Fa Axial Load 49N 5kgf or less Fr Side Load Inhibited Tm Rotary Torque 5kgf cm 0 49N m o...

Page 13: ...ny screws of the actuator nor disassemble the actuator Loosening and disassembling may cause a malfunction poor accurate positioning short life and abnormal noise of the actuator 2 3 Actuator installa...

Page 14: ...gh mechanical characteristics such as positioning accuracy The hardness of the part to attach the actuator load should be HRC 55 65 2 5 Stroke limits Do not move actuator rod exceeding the stroke limi...

Page 15: ...30B 10 F LA 32 30 F Do not make the system of dead end stroke even in the permitted range of the rod because it may cause poor positioning accuracy shorter life or mechanical damage the actuator Push...

Page 16: ...ot apply tensile force of more than 0 5kg to an encoder lead and a motor lead Slacken off encoder leads for their installation Do not bend an encoder lead less than 40mm of curvature radius 3 4 Motor...

Page 17: ...er leads and encoder leads Take are not to be affected by noise from signal lines for other equipment if the lines uses same extension cable for the encoder Take care that an interface circuit for the...

Page 18: ...ation so that IOL is 10 20mA VCC1 VF IOL A VF Input forward voltage for photo isolator approximately 1V to 1 6V 3 Set the filter constant R1 C1 so that the cut off frequency fc is more than 2 8 times...

Page 19: ...Encoder frequency pps For safety half length of the value obtained from above equation is recommended for the limit When the actual length for the cable is longer than the half make CS and RL small o...

Page 20: ...0 60Hz L F NFB CP 8 IN COM ALM RST ENABLE CLEAR DC24V 0V 5 6 7 2 7k 2 7k 2 7k 35 36 CN2 1 4 5 8 9 10 12 13 5V GND 11 14 E LMT VCC FWD LMT REV LMT DC 24V Input of operation limit signal 2 7k 2 7k 29 31...

Page 21: ...1 4 5 8 9 10 12 13 5V GND 11 14 LMT VCC FWD LMT REV LMT DC 24V Input of operation limit signal FWD FWD REV REV 5V COM 0V 220 1 2 220 3 4 8 IN COM ALM RST ENABLE CLEAR DC24V 0V 5 6 7 2 7k 2 7k 2 7k DC...

Page 22: ...ing trial operation 1 Check any abnormal vibrations 2 Check any abnormal noises 3 Is motor temperature rise normal 4 Is rod movement smooth 5 1 Relationship between input signal and actuator rod The r...

Page 23: ...ty 10 RH to 80 RH No water condensation 6 1 Anti corrosion Move the output rod several times in the range of full stroke supplying power in every three months because of anti corrosion for sliding por...

Page 24: ...to 1 user s misapplication improper installation inadequate maintenance or misuse 2 disassembling modification or repair by others than Harmonic Drive Systems Inc 3 imperfection caused by the other t...

Page 25: ...armonic Drive SE Hoenbergstrasse 14 D 65555 Limburg a d Lahn Germany TEL 49 6431 5008 0 FAX 49 6431 5008 119 Harmonic Drive L L C 42 Dunham Ridge Beverly Massachusetts 01915 U S A TEL 1 978 532 1800 F...

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