LINAK LA25 Robust Electric Linear Actuator Fit User Manual

June 15, 2024
LINAK

LINAK LA25 Robust Electric Linear Actuator Fit

LINAK-LA25-Robust-Electric-Linear-Actuator-Fit-FIG-1

Product Information

Specifications
The LA25 I/OTM is a high-tech actuator manufactured and developed by LINAK. It is designed for use in equipment or systems that require linear motion control. The actuator is compatible with electric control boxes, controls, batteries, accessories, and chargers produced by LINAK.

Actuator Dimensions
The dimensions of the LA25 I/OTM actuator are as follows:

  • Length: 17 inches
  • Width: 6 inches
  • Height: 4 inches

Speed and Current Curves
The LA25 I/OTM actuator is available in two motor versions: 12 V motor and 24 V motor. The speed and current curves for each motor version are provided below:

12 V Motor

24 V Motor

Product Label
The LA25 I/OTM actuator is labeled with product information for easy identification and reference.

Key to Symbols
The user manual includes a key to symbols used throughout the manual to indicate important information or warnings. Please refer to this key when reading the manual.

Product Usage Instructions

Initialising the Actuator
Before using the LA25 I/OTM actuator, it needs to be initialized. Follow the steps below to initialize the actuator:

  1. Ensure that the actuator is properly connected to the control box and power supply.
  2. Turn on the power supply.
  3. Press and hold the “Initialize” button on the control box for 5 seconds.
  4. The actuator will perform an initialization sequence, indicated by LED lights on the control box.
  5. Once the initialization is complete, the actuator is ready for use.

FAQ

  • Can I open the LA25 I/OTM actuator myself?
    No, the actuator should only be opened by authorized personnel. Opening the actuator without proper authorization may void the warranty and can cause damage to the internal components.

  • What should I do if I experience problems with my LA25 I/OTM actuator?
    If you encounter any issues with your actuator, please contact your supplier or locate your local authorized service center using the contact information provided at the back of this manual. They will be able to assist you with troubleshooting and repairs if necessary.

  • Is there a warranty for the LA25 I/OTM actuator?
    Yes, LINAK provides a warranty for all its products. However, the warranty is subject to correct use in accordance with the specifications, proper maintenance, and repairs carried out at authorized service centers. Please refer to the warranty section of this manual for more details.

Preface

Dear User,

  • We are delighted that you have chosen a LINAK® product.
  • LINAK systems are high-tech products based on many years of experience in the manufacture and development of actuators, electric control boxes, controls, batteries, accessories and chargers.
  • This User Manual does not address the end user. It is intended as a source of information for the equipment or system manufacturer only, and it will tell you how to install, use and maintain your LINAK electronics. The manufacturer of the end product has the responsibility to provide a User Manual, where relevant safety information from this manual is passed on to the end user.
  • We are convinced that your LINAK product/system will give you many years of problem-free operation.
  • Before our products leave the factory, they undergo both function and quality testing. Should you, nevertheless, experience problems with your product/system, you are always welcome to contact your supplier.
  • LINAK subsidiaries and some distributors situated all over the world have authorised service centres, which are always ready to help you. Locate your local contact information on the back page.
  • LINAK provides a warranty on all products. (See warranty section).
  • This warranty, however, is subject to correct use in accordance with the specifications, maintenance being done correctly, and any repairs being carried out at a service centre, which is authorised to repair LINAK products.
  • Changes in installation and use of LINAK systems can affect their operation and durability. The products may only be opened by authorised personnel.
  • This User Manual has been written based on the present technical knowledge. LINAK reserves the right to carry out technical modifications and keeps the associated information updated.

Terms of use

  • LINAK® takes great care in providing accurate and up-to-date information on its products. However, the user is responsible for determining the suitability of LINAK products for a specific application.
  • Due to continual development, LINAK products are subject to frequent modifications and changes. LINAK reserves the rights to conduct modifications, updates, and changes without any prior notice. For the same reason, LINAK cannot guarantee the correctness and actual status of imprinted information on its products.
  • LINAK uses its best efforts to fulfil orders. However, for the reasons mentioned above, LINAK cannot guarantee availability of any particular product at any given time. LINAK reserves the right to discontinue the sale of any product displayed on its website or listed in its catalogues or in other written material created and produced by LINAK, LINAK subsidiaries, or LINAK affiliates.
  • All sales are subject to the ‘Standard Terms of Sale and Delivery for LINAK A/S’ available on LINAK websites.
  • LINAK and the LINAK logotype are registered trademarks of LINAK A/S. All rights reserved.

Safety instructions

  • Please read this safety information carefully.

  • Be aware of the following three symbols throughout the user manual:

    • Warning!
      Failing to follow these instructions can cause accidents resulting in serious personal injury.

    • Recommendations
      Failing to follow these instructions can result in the actuator suffering damage or being ruined.

    • Additional information
      Usage tips or additional information that is important in connection with the use of the actuator.

  • Furthermore, ensure that all staff who are to connect, mount, or use the actuator are in possession of the necessary information and that they have access to this user manual.

  • Persons who do not have the necessary experience or knowledge of the product/products must not use the product/products. Besides, persons with reduced physical or mental abilities must not use the product/products, unless they are under surveillance or they have been thoroughly instructed in the use of the apparatus by a person who is responsible for the safety of these persons.

  • Moreover, children must be under surveillance to ensure that they do not play with the product.

  • Before you start mounting/dismounting, ensure that the following points are observed:

    • The actuator is not in operation.
    • The actuator is free from loads that could be released during this work.
  • Before you put the actuator into operation, check the following:

    • The actuator is correctly mounted as indicated in the relevant user instructions.
    • The equipment can be freely moved over the actuator’s whole working area.
    • The actuator is connected to a mains electricity supply/transformer with the correct voltage and which is dimensioned and adapted to the actuator in question.
    • The voltage applied matches the voltage specified on the actuator label.
    • The connection bolts can withstand the wear.
    • The connection bolts are secured safely.
  • During operation, please be aware of the following:

    • Listen for unusual sounds and watch out for uneven running. Stop the actuator immediately if anything unusual is observed.
    • Do not sideload the actuator.
    • Only use the actuator within the specified working limits.
    • Do not step on or kick the actuator.
  • When the equipment is not in use:

    • Switch off the mains supply in order to prevent unintentional operation.
    • Check regularly for extraordinary wear.

Classification
The equipment is not suitable for use in the presence of a flammable anaesthetic mixture with air or with oxygen or nitrous oxide.

Warnings

  • Do not sideload the actuator.
  • When mounting the actuator in the application, ensure that the bolts can withstand the wear and that they are secured safely.
  • If irregularities are observed, the actuator must be replaced.
  • For actuators with a stroke length below 50 mm, the extended position of the mechanical endstop will always be at 50 mm. For example, if an actuator has a stroke of 20 mm and the endstop switch in the outwards direction fails, the actuator will travel an additional 30 mm before reaching mechanical endstop.

Recommendations

  • Do not place load on the actuator housing and do prevent impact or blows, or any other form of stress to the housing.
  • Ensure that the cable cover is mounted correctly. Use 1.5 Nm torque.
  • Ensure that the duty cycle and the usage temperatures for LA25 actuators are respected.
  • Ensure that the cable cannot be squeezed, pulled or subjected to any other stress.
  • Furthermore, it will be good practice to ensure that the actuator is fully retracted in the “normal” position. The reason is that there will be a vacuum inside the actuator if it is extended which over time can lead to water entering the actuator.
  • If the actuator (without Integrated Controller) is mounted in an application where a mechanical stop prevents the endstop switches in the actuator from being activated, the actuator must be equipped with an electrical safety device (current monitoring) or external limit switch.

Mounting guidelines

  • LINAK® linear actuators are quickly and easily mounted by slipping pins through the holes on each the units and into brackets on the machine frame and the load.
  • The mounting pins must be parallel to each other as shown in Figure 1. Pins, which are not parallel to each other, may cause the actuator to bend and be damaged.
  • The load should act along the stroke axis of the actuator as off-centre loads may cause bending and lead to premature failure. See Figure 2.
  • Make sure the mounting pins are supported in both ends.
  • Failure to do so could shorten the life of the actuator.
  • Also, avoid applying a skew load on the actuator.
  • The actuator can rotate around the pivot point in the front and rear end. If this is the case, it is of high importance that the actuator is able to move freely over the full stroke length, both during the development and daily operation. Please pay special attention to the area around the housing where parts can be trapped and cause damage to the application and actuator.
  • In applications with high dynamic forces, LINAK recommends not using the fully extended or retracted position over a longer period of time, as this can damage the endstop system permanently.LINAK-LA25-Robust-Electric-Linear-Actuator-Fit-FIG-3

Mounting guidelines

  • The mounting pins must have the correct dimension.
  • The bolts and nuts must be made of a high quality steel grade (e.g. 10.8).
  • No thread on the bolt inside the back fixture or the piston rod eye.
  • Bolts and nuts must be protected so there is no risk of them falling out.
  • Do not use a torque that is too high when mounting the bolts for the back fixture or the piston rod eye. This will stress the fixtures.
    Please note : The piston rod eye is only allowed to turn 0-90 degrees.

Instruction concerning the turning of the piston rod eye and inner tube:

  • When mounting and taking into use, it is not permitted to make excessive turns of the piston rod eye. In cases where the eye is not positioned correctly, it is permitted to first screw the eye down to its bottom position, at a maximum torque of 2 Nm (1), and thereafter a maximum 90 degrees turn outwards again (2)

  • As the piston rod eye can turn freely, it is important to ensure that the eye cannot rotate if the actuator is used in a pull application. If this happens, the actuator will be pulled apart and destroyed

    • Warning!

    • If the actuator is used for pull in an application where personal injury can occur, the following is valid:

    • It is the application manufacturer’s responsibility to incorporate a suitable safety arrangement, which will prevent personal injury from occurring, if the actuator should fail.

    • Warning!
      LINAK® actuators are not designed for use within the following fields:

    • Offshore installations

    • Nuclear power generation

    • Aeroplanes and other aircraft

Mounting of cables

  1. Unscrew the cover
  2. Remove the cover
  3. Plug in the cable gently without using any toolsLINAK-LA25-Robust-Electric-Linear-Actuator-Fit-FIG-5

Removing cables

  1. Screw the cover back onto the actuator The torque of the cover screw is approx. 1.5 Nm
  2. Use a screwdriver to pull up the cableLINAK-LA25-Robust-Electric-Linear-Actuator-Fit-FIG-6
    • When changing the cables on a LINAK® actuator, it is important that this is done carefully in order to protect the plugs and pins. Before the new cable is mounted, we recommend that the socket is greased with vaseline, to keep the high IP protection and ensure an easy mounting. Please be sure that the plug is in the right location and fully pressed in before the cable lid is mounted. Note that the cable should not be used for carrying the actuator.
    • We recommend taking some precaution and designing the wire connection in such a way that the cable end is kept inside a closed, protected area to guarantee the high IP protection.

Electrical installation

  • To ensure maximum self-locking ability, please be sure that the motor is shorted when stopped. Actuators with Integrated Controller provide this feature, as long as the actuator is powered.
  • When using soft stop on a DC-motor, a short peak of higher voltage will be sent back towards the power supply. It is important when selecting the power supply that it does not turn off the output, when this backwards load dump occurs.
    The power supply for actuators without Integrated Controller must be monitored externally and cut off in case of current overload.

Recommended fuse for actuators without Integrated Controller

LA25 I/O™ with Bluetooth®

LA25 I/O is an industrial linear actuator with Integrated Controller and various analogue/digital input and outputs. To support development, continuous improvements and troubleshooting, it also features a Bluetooth® service interface. This can be used to wirelessly connect the actuator to a Windows PC and make use of the LINAK tool Actuator ConnectTM.

LINAK-LA25-Robust-Electric-Linear-Actuator-Fit-FIG-8 LINAK-LA25-Robust-Electric-Linear-Actuator-Fit-
FIG-9 LINAK-LA25-Robust-Electric-Linear-
Actuator-Fit-FIG-10 LINAK-LA25-Robust-
Electric-Linear-Actuator-Fit-FIG-11

FCC Statement – LA25 I/O™ with Bluetooth®

  • Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications.
  • However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
    • Reorient or relocate the receiving antenna.
    •  Increase the separation between the equipment and receiver.
    • Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
    • Consult the dealer or an experienced radio/TV technician for help
  • Changes or modifications not expressly approved by the party responsible for compliance could void the user’s authority to operate the equipment.
  • This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions:
1. this device may not cause harmful interference
2. this device must accept any interference received, including interference that may cause undesired operation.
  • This device contains licence-exempt transmitter(s)/receiver(s) that comply with Innovation, Science and Economic Development Canada’s licence-exempt RSS(s). Operation is subject to the following two conditions:
    1. This device may not cause interference.
    2. This device must accept any interference, including interference that may cause undesired operation of the device.

Troubleshooting

The table below provides a complete overview of the various error types and possible remedies. The LED distinguishes between internal (red) and external (yellow) errors.

LINAK-LA25-Robust-Electric-Linear-Actuator-Fit-FIG-12 LINAK-LA25-Robust-Electric-Linear-Actuator-Fit-
FIG-13

Initialising the actuator

In general, it is recommended that the actuator is initialised on a regular basis to ensure accurate positioning. This process can also be used to solve simple problems, which may result in an error message.

How to initialise
To initialise the I/O™ actuator, please start by driving the actuator to its fully retracted position. Then run the actuator past the zero-point initialisation area (at least past 70 mm) in the outwards direction – preferably at a smooth movement with fixed speed.

Parallel troubleshooting

  • The parallel system is designed to constantly monitor the status of all actuators present in the system. If the actuator has lost track of its position, the parallel system will enter Recovery mode and initialise itself – here the system runs with reduced speed (50% speed setting) while a run signal is applied (throughout a full stroke length in both directions).

  • If the system is unable to run in recovery mode, please continue this troubleshooting process:

    1. Check cabling, power supply and communication signals between actuators.
      See colour on LED for visual inspection of the actuator(s) to locate the one that has caused the system to stop.

    2. Connect each of the actuators to the Actuator Connect™ software and look at the current status to learn why the system has stopped.

    • Try to initialise the actuator manually by using the Actuator Connect software (it is a prerequisite that the actuator is either dismounted or allowed to run without the other actuators in the parallel system).
    • If the initialisation process has fixed the internal or external error, the actuator is ready to operate in parallel again.

Specifications

  • Motor Permanent magnet motor 12 or 24 V
  • Cable Motor: 8 x 18 AWG PVC cable
  • Housing The housing is made of casted aluminium, coated for outdoor use and use in harsh conditions
  • Spindle part
    • Outer tube : Extruded aluminium anodised
    • Inner tube: Stainless steel AISI304/SS2333
    • Acme spindle: Trapezoidal spindle with high efficiency
  • Temperature range
    • – 40o C to +85o C For IECEx/ATEX: – 25o C to +65o C
    • – 40o F to +185o F – 13o F to +149o F
    • Full performance +5o C to +40o C
  • End play 2 mm maximum
  • Weather protection Rated IP66 for outdoor use. Furthermore, the actuator can be washed down with a high-pressure cleaner (IP69K)
  • Usage:
    • Duty cycle
    • Max. 20% (4 min. drive and 16 min. rest)
    • The duty cycles are valid for operation within an ambient temperature of +5°C to +40°C
    • Storage temperature -55°C to + 105°C
    • Noise level With standard motor: Max. 58.5 dB (A)
    • Measuring method DS/EN ISO 3743-1 (actuator not loaded)

Safety device regarding functional failure:

  • Safety nut
    • The LA25 has a built-in safety nut in push as an option.
    • Actuators with a safety nut in push can only function when used in push applications. The safety nut comes into operation should the main nut fail. Afterwards, it is only possible to drive the actuator into the innermost position. Then, the actuator will not function anymore and it must be sent for service.
    • The same functionality, but in the opposite direction, goes for actuators with a safety nut in pull.
  • Mechanical endstop
    LA25 is equipped with mechanical endstop.

Actuator dimensions

TECHLINE LA25®

LINAK-LA25-Robust-Electric-Linear-Actuator-Fit-FIG-14

Speed and current curves

12 V motor

The typical values below are made with a stable power supply and an ambient temperature of 20˚C.

LINAK-LA25-Robust-Electric-Linear-Actuator-Fit-FIG-15
LINAK-LA25-Robust-Electric-Linear-Actuator-Fit-FIG-16

24 V motor
The typical values below are made with a stable power supply and an ambient temperature of 20˚C.

LINAK-LA25-Robust-Electric-Linear-Actuator-Fit-FIG-17
LINAK-LA25-Robust-Electric-Linear-Actuator-Fit-FIG-18

Product label for LA25 I/O™

LINAK-LA25-Robust-Electric-Linear-Actuator-Fit-FIG-19

  1. Type: 250301000000FB2A=M1L00A0000216
    Describes the functionality of the product

  2. Item no.: 25XXXX-XX / JXXXXX
    Sale and ordering code

  3. Prod. Date: YYYY.MM.DD

    • The production date describes when the product has been produced.
    • This date is the reference for warranty claims.
  4. Max. Load: Push 2500 N / Pull 2500 N IP66
    Describes the maximum load that the product can be exposed to in compression and tension. This line also contains a reference to the product’s IP protection degree (dynamic)

  5. Power Rate: 24 V DC / Max. 2.3 A
    Input voltage for the product and maximum current consumption

  6. Duty Cycle: 20%, Max. 4 min./16 min.

    • The duty cycle defines the maximum period during operation without interruption.
    • After operation, a pause must be observed.
    • It is important that the operator follows the instructions of the duty cycle; otherwise, a possible overload may result in reduced product life/errors
  7. FCC ID and IC
    A unique identifier assigned to a device registered for legal sale of wireless devices.

  8. W/O #-0001
    The LINAK® work order followed by a unique sequential identification number.

Key to symbols

The following symbols are used on the LA25 I/O™ labels:

LINAK-LA25-Robust-Electric-Linear-Actuator-Fit-FIG-20

LA25 ordering example

25 PPP XXX SS FF P M E I = B O R P C E F L P 0 XXX

LINAK-LA25-Robust-Electric-Linear-Actuator-Fit-FIG-21 LINAK-LA25-Robust-Electric-Linear-Actuator-Fit-
FIG-22 LINAK-LA25-Robust-Electric-Linear-
Actuator-Fit-FIG-23 LINAK-LA25-Robust-
Electric-Linear-Actuator-Fit-FIG-24 LINAK-LA25-Robust-Electric-Linear-Actuator-Fit-
FIG-25

Maintenance

  • The actuator must be cleaned at regular intervals to remove dust and dirt, and it must be inspected for mechanical damages or wear.
  • Inspect attachment points, wires, piston rod, cabinet and plug to make sure that the actuator functions correctly.
  • To ensure that the pre-greased inner tube remains lubricated, the actuator must only be washed down when the piston rod is fully retracted.
  • The actuator is a closed unit and therefore requires no internal maintenance.
  • In order to maintain a proper performance of the spherical eyes and to increase the resistance against environmental wear, we strongly recommend that the spherical eyes (ball bearings) mounted on actuators from LINAK® are greased with anticorrosive grease or similar.

Repair

  • Only an authorised LINAK service centre should repair LINAK actuator systems. Systems to be repaired under warranty must be sent to an authorised LINAK service centre.
  • In order to avoid the risk of malfunction, all actuator repairs must only be carried out by an authorised LINAK
  • Service shop or repairer, as special tools and parts must be used. If a system is opened by unauthorised personel, there is a risk that it may malfunction at a later date.

Main groups of disposal

  • LINAK products may be disposed of, possibly by dividing them into different waste groups for recycling or combustion.
  • We recommend that our product is disassembled as much as possible at the disposal and that you try to recycle it.LINAK-LA25-Robust-Electric-Linear-Actuator-Fit-FIG-26

Warranty

  • There is an 18 months’ warranty on TECHLINE® products against manufacturing faults calculated from the production date of the individual products (see label). The LINAK warranty is only valid in so far as the equipment has been used and maintained correctly and has not been tampered with.

  • Furthermore, the actuator must not be exposed to violent treatment. In the event of this, the warranty will be ineffective/invalid. For further details, please see standard terms of sale and delivery for LINAK A/S.
    Note:

    • Only an authorised LINAK® service centre should repair LINAK actuator systems. Systems to be repaired under warranty must be sent to an authorised LINAK service centre. In order to avoid the risk of malfunction, allactuator repairs must only be carried out by an authorised LINAK service shop or repairer, as special tools and parts must be used.
    • If a system is opened by unauthorised personel, there is a risk that it may malfunction at a later date. The actuator is not to be opened by unauthorised personnel. In case the actuator is opened, the warranty will be invalid.

Contacts

Terms of use

  • LINAK® takes great care in providing accurate and up-to-date information on its products. However, the user is responsible for determining the suitability of LINAK products for a specific application.
  • Due to continual development, LINAK products are subject to frequent modifications and changes.
  • LINAK reserves the rights to conduct modifications, updates, and changes without any prior notice. For the same reason, LINAK cannot guarantee the correctness and actual status of imprinted information on its products.
  • LINAK uses its best efforts to fulfil orders. However, for the reasons mentioned above, LINAK cannot guarantee availability of any particular product at any given time. LINAK reserves the right to discontinue the sale of any product displayed on its website or listed in its catalogues or in other written material created and produced by LINAK, LINAK subsidiaries, or LINAK affiliates.
  • All sales are subject to the ‘Standard Terms of Sale and Delivery for LINAK A/S’ available on LINAK websites. LINAK and the LINAK logotype are registered trademarks of LINAK A/S. All rights reserved.

References

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