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5. Electric actuators / Common precautions 

5.1 Design and selection 

Warning 

1.    Be sure to read the Operation Manual (this manual and the one for the controller: LEC series).

 

Handling or usage/operation other than that specified in the Operation Manual may lead to breakage 
and operation failure of the product. 
Any damage attributed to the use beyond the specifications is not guaranteed. 

2.    There is a possibility of dangerous sudden action by the product if sliding parts of machinery 

are twisted due to external forces etc.

 

In such cases, human injury may occur, such as by catching hands or feet in the machinery, or damage 
to the machinery itself may occur. Design the machinery should be designed to avoid such dangers. 

3.    A protective cover is recommended to minimize the risk of personal injury. 

If  a  driven  object  and  moving  parts  of  the  product  are  in  close  proximity,  personal  injury  may  occur. 
Design the system to avoid contact with the human body. 

4.    Securely tighten all stationary parts and connected parts so that they will not become loose. 

When the product operates with high frequency or is installed where there is a lot of vibration, ensure 
that all parts remain secure. 

5.    Consider a possible loss of power source.

 

Take measures to prevent injury and equipment damage even in the case of a power source failure. 

6.    Consider behavior of emergency stop of whole system.

 

Design the system so that human injury and/or damage to machinery and equipment will not be caused, 
when  it  is  stopped  by  a  safety  device  for  abnormal  conditions  such  as  a  power  outage  or  a manual 
emergency stop of whole system. 

7.    Consider the action when operation is restarted after an emergency stop or abnormal stop of 

whole system. 

Design the system so that human injury or equipment damage will not occur upon restart of operation 
of whole system. 

8.  Never disassemble or modify (including additional machining) the product. 

An injury ro failure can result. 
It will cause the loss of the product performance. 

9.  Do not use the stop signal, "EMG" of the controller and stop switch on the teaching box as the 

emergency stop of system. 

The stop signal, "EMG" of controller and the stop switch on the teaching box are for decelerating and 
stopping the actuator. 

Design the system with an emergency stop circuit which is applied relevant safety standard separately. 

10.  When using it for vertical application, it is necessary to build in a safety device. 

The rod may fall due to the weight of work. The safety device should not interfere with normal operation 
of the machine. 

 

 

Caution

 

1.  Operate within the limits of the maximum usable stoke. 

The product will be damaged if it is used with the stroke which is over the maximum stroke. Refer to the 
specifications of the product. 

2.  When the product repeatedly cycles with partial strokes, operate it at a full stroke at least once 

a day or every 1000 strokes.

 

Otherwise, lubrication can run out. 

3.  Do not use the product in applications where excessive external force or impact force is applied 

to it.

 

The product can be damaged. Each component that includes motor is made with accurate tolerance. 

So even slightly deformed or miss-alignment of component may lead operation failure of the product. 

 

 

Summary of Contents for LER Series

Page 1: ...roduct Number LER Series This manual describes the actuators operation in combination with the LEC 6 series controllers Refer to the manual relevant to the controller being used for full operating instructions Doc no LER0 OM00303 Controller LEC Series ...

Page 2: ... Setting Function 18 3 3 Step data setting method 21 Positioning operation 21 Pushing operation 23 Operating procedure and input output signals for each operation 29 Continuous rotation 360 type setting 30 3 4 Parameter setting method 31 Initial setting for the basic parameters 31 Initial setting for the ORIG parameters 32 4 Wiring of cables Common precautions 33 5 Electric actuators Common precau...

Page 3: ... 2 7 Troubleshooting 42 ...

Page 4: ...n should also continuously review all specifications of the product referring to its latest catalog information with a view to giving due consideration to any possibility of equipment failure when configuring the equipment 2 Only personnel with appropriate training should operate machinery and equipment The product specified here may become unsafe if handled incorrectly The assembly operation and ...

Page 5: ... or necessary parts will be provided This limited warranty applies only to our product independently and not to any other damage incurred due to the failure of the product Prior to using SMC products please read and understand the warranty terms and disclaimers noted in the specified catalog for the particular products 3 Vacuum pads are excluded from this 1 year warranty A vacuum pad is a consumab...

Page 6: ... 1 3 Power supply plug 1 4 Actuator cable 1 5 I O cable Not use in this section 1 6 Teaching box 1 7 Controller setting kit The controller setting software The communication cable USB cable and conversion unit are included Setting software version 1 1or higher 1 Part name Conditions Power supply 24VDC Except inrush current restraining type Refer to power consumption of each actuator Wire AWG20 0 5...

Page 7: ... software After turning on the controller power supply start up the ACT Controller setting soft ware Select Easy Mode Select OK 3 JOG Drive a Driving preparation Servo On Return to ORIG Select Monitor Select OK 1 SVRE lighting is confirmed b JOG Drive 2 Select Return to ORIG Clicking arrow button Operation S Direction O Direction c Driving stop Servo Off Select Test Select OK Caution If an alarm i...

Page 8: ...No Move M Speed Position Pushing F TriggLV In pos s 0 ABS 50 0 00 0 0 0 50 1 ABS 200 90 00 0 0 0 50 6 Controller setting software screen explanation Refer to the Help Easy mode menu in the ACT Controller setting software Step Data No Move M Speed Position Pushing F TriggLV In pos s 0 ABS 50 0 00 0 0 0 50 1 ABS 200 180 00 0 0 0 50 Step Data No Move M Speed Position Pushing F TriggLV In pos s 0 ABS ...

Page 9: ...ess the 3 SET key JOG 1 RTN ORIG Done JOG Move Posn 123 45 Operates by 2 JOG key JOG S Direction JOG O Direction Press the 5 MENU key Check 1 EXT Inp ON OK Press the 3 SET key アラーム ALARM ジョグ JOG 設定 SETTING テスト TEST モニタ MONITOR データ DATA アラーム ALARM ジョグ JOG 設定 SETTING テスト TEST モニタ MONITOR データ DATA The power supply is turned on EXT Inp OFF YES Press the 3 SET key Servo ON Ready YES Press the 3 SET key...

Page 10: ...tep 1 Step No 1 Posn 180 00 Speed 200 s Press the 1 Number key 90 Press the 3 SET key Change of positioning speed Speed 200 s 50 s Step 1 Step No 0 Posn 0 00 Speed 200 s Press the 1 Number key 50 Press the 3 SET key Screen showing the actuator speed of 200 s Step 1 Step No 0 Posn 0 00 Speed 200 s Press the 4 Down key Select Speed Change Step No 1 Step 1 Step No 1 Posn 0 00 Speed 50 s Press the 1 N...

Page 11: ...0 63 1 4 2 8 Electric specification Motor size 20 28 42 Motor Step motor Servo 24VDC Encoder Angular displacement sensor Incremental A B phase 800 pulse rotation Rated voltage VDC 24 10 Power consumption W Note 6 11 22 34 Standby power consumption when operating W Note 7 7 12 13 Max instantaneous power consumption W Note 8 19 42 57 Note 1 Pushing Torque accuracy should be 30 F S for LER10 25 F S f...

Page 12: ...chased separately confirm that the combination of the controller which you have and the actuator is compatible See 5 3 Caution 1 on p 36 Be sure to check the following before use 1 Check that actuator label for model number This matches the controller 2 Check Parallel I O configuration matches NPN or PNP 1 2 LER10K NPN ...

Page 13: ...ium alloy Anodized 7 Table Aluminium alloy Anodized 8 Joint Stainless steel 9 Bearing holder Aluminium alloy 10 Bearing retainer Aluminium alloy 11 Starting point bolt Carbon steel 12 Pulley A Aluminium alloy 13 Pulley B Aluminium alloy 14 Grommet NBR 15 Motor plate Carbon steel 16 Basic Deep groove ball bearing High precision Special ball bearing 17 Deep groove ball bearing 18 Deep groove ball be...

Page 14: ... 13 Parts list No Part Material Remarks 22 Table Aluminium alloy Anodized 23 Arm Carbon steel Nickel plated 24 Holder Aluminium alloy Anodized 25 Adjustment bolt Carbon steel Chromating External stopper ...

Page 15: ...Power consumption W Note 6 11 22 34 Standby power consumption when operating W Note 7 7 12 13 Max instantaneous power consumption W Note 8 19 42 57 Note 1 Pushing Torque accuracy should be 30 F S for LER10 25 F S for LER30 20 F S for LER50 Note 2 The Angular acceleration angular deceleration and angular speed may fluctuate due to variations in the moment of inertia Refer to the catalog Note 3 The ...

Page 16: ...hased separately confirm that the combination of the controller which you have and the actuator is compatible See 5 3 Caution 1 on p 36 Be sure to check the following before use 3 Check that actuator label for model number This matches the controller 4 Check Parallel I O configuration matches NPN or PNP 1 2 LER10K 1 NPN ...

Page 17: ...inium alloy 10 Bearing retainer Aluminium alloy 11 Pulley A Aluminium alloy 12 Pulley B Aluminium alloy 13 Grommet NBR 14 Motor plate Carbon steel 15 Basic Deep groove ball bearing High precision Special ball bearing 16 Deep groove ball bearing 17 Deep groove ball bearing 18 Deep groove ball bearing 19 Belt 20 Step motor Servo 24VDC 21 Proximity dog Stainless steel 22 Sensor holder Carbon steel Ch...

Page 18: ...iring See 4 Wiring of cables on p 29 Communication cable is to be connected to PC by USB cable through conversion unit And do not connect teaching box to PC Use only specified cables otherwise there maybe fire risk and damage The actuator body and controller are sold as a package If When only the actuator is purchased seperately confirm that the combination of the controller which you have and the...

Page 19: ... function by the iconized menu at the first page Step data setting and monitoring at the second page Data Axis 1 Step No 0 Posn 123 45mm Force 30 It can be registered by SET after entering the values Operation status can be checked 1st screen 2nd screen 2nd screen Example of setting the step data Example of checking the operation status 1st screen Monitor Axis 1 Step No 1 Posn 12 34mm Force 50 Pos...

Page 20: ...red JOG and fixed distance movement return to origin position test operation and testing of compulsory output can be done Controller setting soft ware Every function step data parameter monitor and teaching are indicated in a different window Teaching box The data in the controller can be saved forwarded in this teaching box Continuous test operation can be made after specifying five step data ...

Page 21: ...eleration when returning to origin can be set Test JOG It can make continuous operation at the set speed while the switch is being pressed MOVE It can make test operation at the set distance and speed from the current position when the switch is pressed Rerurn to ORIG Test of return to origin can be done Test drive The operation of the specified step data can be tested Continuous operation Force o...

Page 22: ...ning operation In the positioning operation the electric rotary actuator moves to and stops at the target position The following image shows the setting items and operation Confirmation of reaching the target position during the positioning operation When the table of the rotary actuator reaches the range of the target position the target position reaching signal INP in position is outputted When ...

Page 23: ...ly the actuator comes to stop The higher the set value the quicker it stops f Pushing force Set 0 If values other than 0 set the operation will be changed to the pushing operation g X Trigger LV h X Pushing speed i Moving force Max force at the positioning operation The force is automatically adjusted corresponding to the load See 6 3 Caution 2 on p 40 j Area1 Area2 This is the condition that turn...

Page 24: ...V is achieved Also if the actual pushing force exceeds the Trigger LV the INP signal is turned on Caution When the table is to be stopped by an external object utilize the pushing operation If the product is used in the positioning operation there may be galling or other problems when it comes into contact with the external object Note When it is not possible to operate the table move it with manu...

Page 25: ...ue the quicker it stops f Pushing force Pushing force ratio is defined Note 40 to 50 g Trigger LV The condition at which INP output signal is turned on Set it at the value equivalent to the pushing force See 6 3 Caution 3 on p 40 The INP output signal is given when the target force Trigger LV is achieved The INP output signal is turned on when the generated force exceeds the value h Pushing speed ...

Page 26: ... pos k 0 5 0 5 I N P O ut putcondi t i on 180 90 0 270 Condition 2 The AREA output signal is used The AREA output signal is a signal output when the rod traverses through a certain range The step data Area 2 from Area 1 This feature is useful when an output to check the rod position at intermediate stroke is required 200 0 S peed s ON OFF ON OFF b A rea2 j A rea1 j P osi t i on c 180 160 140 120 1...

Page 27: ...tsi gnal I N P O ut putcondi t i on Condition 2 The AREA output signal is used The AREA output signal is a signal output when the rod traverses through a certain range The step data Area 2 from Area 1 This feature is useful when an output to check the rod position at intermediate stroke is required 30 0 ON OFF 200 50 0 40 ON OFF 180 160 140 120 100 80 60 40 20 0 10 S t roke 90 180 0 270 10 40 I N ...

Page 28: ...00 to 60 Condition 1 Length to work In position Lengt h t o w ork 40 P osi t i on c 100 80 60 40 20 0 S t roke 20 0 100 270 90 60 180 40 W I n pos k Condition 2 Length to work In position 60 40 100 80 60 40 20 0 S t roke 0 90 60 100 180 20 270 W Lengt h t o w ork P osi t i on c I n pos k k In pos Length to work Actual force g TriggerLV The INP output signal is turned on INP Output condition k In p...

Page 29: ... 0 0 0 100 0 00 0 00 0 50 2 ABS 200 40 00 3000 3000 50 40 30 100 20 00 40 00 20 00 Condition 1 In case the pushing operation is Step no 0 to Step no 2 100 80 60 40 20 0 S t roke 270 0 90 60 40 180 0 90 100 270 180 20 40 P osi t i on c I n pos k Condition 2 In case the pushing operation is Step no 1 to Step no 2 100 80 60 40 20 0 S t roke 270 0 90 60 40 180 P osi t i on c I n pos k Caution When the...

Page 30: ...and the operation starts Complete 4 IN0 IN1 IN2 IN3 IN4 IN5 DRIVE Note 3 5 OUT0 OUT1 OUT2 Note 3 4 OUT3 OUT4 OUT5 After reaching of target position INP After stopping motion BUSY Select the step no 2 and the operation starts Complete 5 SVON SVRE SETON Note 2 INP Power to the motor is cut Note 1 means ON means OFF Note 2 The origin has been recognized when the operation is repeated so it can operat...

Page 31: ... Monitor angle will be reset to 0o every 360o 2 Select Relative for setting the angle position If the setting angle is over 360o with ABS Absolute the actuator will not operate correctly 3 Please set the range of output signal Area to 0 359 99 2 The actuator stopped in the middle of the stroke due to emergency stop or alarm If Relative is selected in the next step movement to the correct position ...

Page 32: ...on rate 0 Stroke 1000 00 Basic External stopper 2 3 10000000 00 360 type 1 Stroke 1000 00 Basic External stopper 2 3 10000000 00 360 type 1 Max speed Max speed of each product Step data input limit Max speed of each product Max ACC DCC 3 000 Step data input limit 3 000 at the maximum Def In position 0 50 ORIG offset 0 00 Basic 360 type 1 5 00 External stopper 2 3 Max force 50 Step data input limit...

Page 33: ... type 3 Limit switch origin1 Sensor1 recognizes the sensor detection range as the origin While detecting the sensor the rotary table rotates in the reverse direction in the sensor detection range Description Extract Initial input value Input range ORIG direction 2 CCW Basic External stopper 2 3 1 CW 360 type 1 1 CW O direction 2 CCW S direction Note 1 ORIG mode 1 Stop Basic External stopper 2 3 3 ...

Page 34: ... sharp angles where they enter the product 7 Avoid twisting folding rotating or applying an external force to the cable Risk of electric shock wire break contact failure and loss of control for the product can happen 8 Fix the cable protruding from the product in place before using The motor and lock cables are not robotic type cables and can be damaged when moved Therefore fix the cables and the ...

Page 35: ... safety device for abnormal conditions such as a power outage or a manual emergency stop of whole system 7 Consider the action when operation is restarted after an emergency stop or abnormal stop of whole system Design the system so that human injury or equipment damage will not occur upon restart of operation of whole system 8 Never disassemble or modify including additional machining the product...

Page 36: ... the product and the load in such a way that there is no interference at any point within the stroke Do not scratch or dent the sliding parts of the product tube or piston rod etc by striking or grasping them with other objects Components are manufactured to precise tolerances so that even a slight deformation may cause faulty operation 6 Prevent the seizure of rotating parts Prevent the seizure o...

Page 37: ...ke the motor phase detection step into consideration for the installation and operation of this actuator Caution 1 Keep the controller and product combined as delivered for use The product is set in parameters for shipment If it is combined with a different parameter failure can result 2 Check the product for the following points before operation a Damage to electric driving line and signal line b...

Page 38: ... oils coolant or oil mist contaminates the product failure or increased sliding resistance can result 3 Install a protective cover when the product is used in an environment directly exposed to foreign matters such as dust cutting chips and spatter Play or increased sliding resistance can result 4 Shade the sunlight in the place where the product is applied with direct sunshine 5 Shield the valve ...

Page 39: ...product operation is stopped and the power supply is turned off 4 Do not apply an impact load or strong vibration while the lock is activated If an external impact load or strong vibration is applied to the product the lock will lose it s holding force and damage to the sliding part of the lock or reduced lifetime can result The same situations will happen when the lock slips due to a force hight ...

Page 40: ...use the product with an external stopper with repeatability of 0 01 180 and 90 with adj of 2 or by directly stop the workpiece using an external object utilizing the pushing operation 6 2 Mounting 1 Do not drop or hit the rotary actuator to avoid scratching and denting the mounting surfaces Even slight deformation can cause the deterioration of accuracy and operation failure 2 When mounting the ro...

Page 41: ...ime or an alarm may be generated 3 INP output signal 1 Positioning operation When the product comes within the set range by step data In position output signal will be turned on Initial value Set to 0 50 or higher 2 Pushing operation When the pushing force exceeds the TriggerLV value the INP In position output signal is turned on Please set the Pushing force and the TriggerLV within the specified ...

Page 42: ...sition after starting to push c Err overflow alarm The displacement at the pushing start position exceeds the specified range 6 If the table is stopped by an external object there is no backlash effect in pushing operation The return to origin position is set by pushing operation 7 In the external stopper specification an angle adjustment screw adjuster bolt is mounted as the standard specificatio...

Page 43: ...ould not be changed See 5 3 Caution 1 on p 36 4 Excessive external force is being applied including vibration or impact load Operate within the specified range See 2 1 Specifications on p 9 Release the warm using the manual override See 6 2 Caution 5 on p 40 Alarm for Step data ALM1 code 1 048 is generated Procedure of restart Input the reset signal Setting condition for step data is not correct C...

Page 44: ...tly in the external set to pushing operation please use See 6 3 Caution 5 on p 41 5 For the pushing operation The position and the target start pushing position are not set correctly Check the step data See 6 3 Caution 5 on p 41 6 The cable is not connected or has been disconnected Confirm that the cable is connected correctly See 4 Wiring of cable on p 33 7 It was not the intended origin position...

Page 45: ... Procedure of restart Turn the power supply off Turn the power supply on 1 The lead screw had galling due to excessive external force including vibration or impact Operate within the specified range See 2 1 Specifications on p 9 Release the warm using the manual override See 6 2 Caution 5 on p 40 2 The Power supply does not have sufficient capacity Check the power consumption for each actuator and...

Page 46: ... because the input signal time was too short Add an interval of 15ms the recommendation is 30ms or more between the input signals See Operating procedure input and output signals for each operation type on P 29 4 Different input signal to the expected step number is inputted to the controller caused by PLC or other device Check that the step number is inputted correctly for the required motion Ope...

Page 47: ...ion by receiving the INP output signal Go to the next operation after receiving the BUSY output signal is outputted 6 The operation time is delayed to the step date setting 1 The inertia moment angle acceleration and deceleration and effective torque angular speed exceed the specified range Check this with the model selection stated in the catalog 7 Damage 1 Abnormal external force Interference of...

Page 48: ... No LER OM00207 Jan 2014 Revision Part material change Proximity dog No LER OM00208 Jan 2015 Revision Change of specification No LER OM00209 May 2015 Revision No LER OM00210 Sep 2015 Revision No LER OM00211 Mar 2016 Revision No LER0 OM00303 May 2019 Revision 4 14 1 Sotokanda Chiyoda ku Tokyo 101 0021 JAPAN Tel 81 3 5207 8249 Fax 81 3 5298 5362 URL https www smcworld com Note Specifications are sub...

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