Festo ELFC User manual

ELFC
Guide axis
Festo SE & Co. KG
Ruiter Straße 82
73734 Esslingen
Deutschland
[phone]
www.festo.com
Operating instructions
8117249
2021-04b
[8117251]
Translation of the original instructions
© 2021 all rights reserved to Festo SE & Co. KG
1Applicable Documents
All available documents for the product è www.festo.com/sp.
2 Safety
2.1 Safety instructions
–Observe labelling on the product.
–Prior to assembly, installation and maintenance work: Switch off power supply,
ensure that it is off and secure it against being switched back on.
–Store the product in a cool, dry, UV-protected and corrosion-protected environ-
ment. Ensure that storage times are kept to a minimum.
–Observe tightening torques. Unless otherwise specified, the tolerance
is ± 20 %.
2.2 Intended use
The axis is intended for use in combination with a drive axis for moving payloads
in multi-axis applications (e.g. planar surface gantries).
The axis is only approved for slide operating mode.
Fig. 1: Slide mode
2.3 Training of qualified personnel
Work on the product may only be carried out by qualified personnel who can
evaluate the work and detect dangers.
3 Additional information
–Contact the regional Festo contact if you have technical problems
è www.festo.com.
–Accessories and spare parts è www.festo.com/catalogue.
4 Product overview
4.1 Function
The slide of the axis follows the movement of the parallel mounted drive axis via
the mechanical coupling. The linear movement of the slide is precisely guided by
the guide. Sensors enable the monitoring of end positions, reference position and
intermediate position.
4.2 Product design
1
2345 6 72
8
9
10
Fig. 2: Product design ELFC
1Sealing air connection
2End cap
3Cover strip
4Threaded hole for attachment
component
5Centring hole for attachment
component
6Threaded hole for switch lug
7Slide
8Slot for sensors and sensor
brackets
9Slot for profile mountings
10 Profile
5Transport and storage
NOTICE
Unexpected and unbraked movement of components
• Secure moving components for transport.
Transport and storage conditions
–Take product weight into account è Technical data.
Weight > 25 kg: transport with a suitable hoist (cross-brace) or with two per-
sons.
–Take the centre of gravity of the product into consideration.
–Comply with maximum permitted support clearances when attaching transpor-
tation aids è Technical data.
–Store and transport the product in its original packaging.
–Store product in a cool, dry, shaded and corrosion protected environment.
–Store product in areas where it is not exposed to oils, greases and degreasing
vapours.
–Keep storage times short.
6 Assembly
6.1 Safety
WARNING
Risk of Injury due to Unexpected Movement of Components
For vertical or slanted mounting position: when power is off, moving parts can
travel or fall uncontrolled into the lower end position.
•Bring moving parts of the product into a safe end position or secure them
against falling.
6.2 Unpacking product
Protection of the cover strip
The cover strip is equipped with a protective cover to prevent damage. This
protective cover must be removed and disposed of before commissioning. After
removing the protective cover, mechanical damage and contamination of the
cover strip must be avoided.
1. Open packaging.
2. Remove all transport materials (e.g. foils, caps, cardboard boxes).
3. Remove the product from the packaging and place it on the mounting surface.
Comply with maximum permitted support clearances when attaching trans-
portation aids è 12.2 Characteristic curves.
4. Dispose of packaging and transport materials.
6.3 Mounting axis
Requirement
–No collision with mounting and sensor components in the movement space of
the attachment component.
–Sufficient space to reach maintenance interfaces.
–Sufficient space for reaching and securing the sealing air connection.
–Flatness of the mounting surface of 0.05 %of the stroke length or maximum
0.5 mm over the stroke length of the bearing surface.

–Required support points lie within the specified support distancesè 12.2 Char-
acteristic curves.
–No distortion or bending when installing the product.
1. Select mounting attachments è www.festo.com/catalogue.
2. Place the mounting attachments on the support points.
3. Tighten retaining screws.
Observe the maximum tightening torque and screw-in depth.
In the case of planar and 3-dimensional gantries, pay attention to parallelism,
product height and alignment of the axes.
For additional information, contact your local Festo Service.
Profile mounting EAHF-L2
Mounting via profile groove
Instruction manual è www.festo.com/sp.
Tab. 1: Overview of mounting component
6.4 Mounting the attachment component
Collision-free Flatness Centre of gravity
and tilting
moment
Max. screw-in
depth
Tab. 2: Requirement for attachment component
Requirement:
–No collision with mounting and sensor components in the movement space of
the attachment component.
–Flatness of the mounting surface of the attachment component of 0.01 mm
above the slide surface.
–Minimise breakdown torque with force Fx. Short lever arm a from the centre of
the guide

to the centre of gravity of the attachment
–The maximum screw-in depth of the retaining screws is not exceeded.
1. Select accessories è www.festo.com/catalogue.
2. Place centring components in centring holes.
3. Position the attachment component on the slide.
4. Tighten retaining screws.
Observe max. tightening torque and max. screw-in depth.
When using an additional external guide, ensure exact parallelism and alignment
of the axes and guide.
Recommendation: use guide mountings with tolerance compensation.
Direct fastening
Mounting via thread
Tab. 3: Overview of attachment component
Size 32 45 60 80
Direct fastening
Screw M3 M4 M5 M6
Max. tightening torque [Nm] 1.2 2.9 5.9 9.9
Max. screw-in depth tmax [mm] 5.3 7.8 10.8 14.7
Centring (bore tolerance H7)
Centring pins [mm] Æ2Æ4 – –
Centring sleeve [mm] – – Æ5Æ7
Tab. 4: Information on attachment component
6.5 Mounting accessories
Requirement
–No collision with mounting and sensor components in the movement space of
the attachment component.
–Protection against uncontrolled overtravel of the end positions.
–Query of end positions or intermediate positions.
1. Select accessories è www.festo.com/catalogue.
2. Mount the sensor (reference or query):
–Mount the sensor bracket and switch lug (depending on the type of
mounting).
–Mount the sensor.
–Fasten the cable with clips.
Instruction manuals è www.festo.com/sp.
Sensor bracket
–Switch lug: mounting on slide
–Sensor bracket: mounting via profile groove
–Sensor: mounting on the sensor bracket


–Protect the sensor from external magnetic or ferritic influences (e.g. min. 10 mm distance to slot
nuts).
–Preferably use hardware limit switches with normally closed function (protection guaranteed even
in case of sensor failure).
–Query switching lug only with inductive sensor.
–Query integrated magnets in the slide only with magneto-resistive sensor.
Instruction manual è www.festo.com/sp.
Tab. 5: Overview of sensor mounting
Connecting sealing air
The use of overpressure or negative pressure in the range of approx. ± 0.02 MPa
(± 2.9 psi; ± 0.2 bar) reduces or prevents the following contamination:
–The application of negative pressure minimises the release of abraded particles
into the environment.
–Applying overpressure reduces the penetration of dirt into the drivetrain.
Fig. 3: Connecting sealing air
1. Remove the sealing air plug screw from the threaded hole.
2. Mount the screw fitting and connect the hose.
7 Commissioning
7.1 Safety
WARNING
Risk of injury due to unexpected movement of components.
• Protect the positioning range from unwanted intervention.
• Keep foreign objects out of the positioning range.
•Perform commissioning with low dynamic response.
7.2 Performing commissioning
Running noises during operation
Identically constructed axes can generate different running noises depending on
the parameterisation, mode of operation, type of mounting, installation environ-
ment and components.
For use with reduced particle emission
• Clean product è 9.3 Cleaning.
Requirement
–Mounting of the drive system checked.
–The protective cover of the cover strip is removed.
–No foreign objects in the movement space of the drive system.
–No mechanical overload of the axis and dynamic setpoint deviation not
exceeded (e.g. overrunning the end position) due to force and torque peaks.
•Commissioning of the drive system (e.g. control and homing) è Instruction
manual for drive axis, è www.festo.com/sp.

8 Operation
WARNING
Risk of injury due to unexpected movement of components.
• Protect the positioning range from unwanted intervention.
• Keep foreign objects out of the positioning range.
•Perform commissioning with low dynamic response.
9 Maintenance
9.1 Safety
WARNING
Unexpected movement of components
Injury due to impact or crushing.
• Before working on the product: secure the slide to prevent unintentional move-
ment.
CAUTION
For vertical or slanted mounting position: when power is off, moving parts can
travel or fall uncontrolled into the lower end position.
Injury due to impacts or crushing.
•Bring moving parts of the product into a safe end position or secure them
against falling.
9.2 Checking axis elements
Checking the cover strip
•Check: every 2000 km.
If waves form, the cover strip must be retensioned.
1
2
3
4
Fig. 4: Retensioning cover strip
1
Clamping element
2
Cover strip
3
Screw
4
End cap
Retension cover strip on both sides
1. Loosen screws 3.
2. Push cover strip 2 into the cover 4.
3. Tighten cover strip with a clamping element 1.
4. Tighten the screws.
Tightening torque: size 32/45: 0,2 Nm; size 60/80: 0,8 Nm.
If it is no longer possible to retighten the cover strip, the belt reversals and the
cover strip should be replacedè www.festo.com/spareparts.
Clamping element è www.festo.com/catalogue.
9.3 Cleaning
–Clean the product with a clean, soft cloth and non-abrasive cleaning agents.
For use with reduced particle emission:
–Remove abrasion and contamination from the product on the following
schedule:
–Prior to initial commissioning.
–Regularly during operation.
9.4 Lubrication
The axis is lubricated for life.
Additional lubrication of the axis is not necessary.
10 Malfunctions
10.1 Fault clearance
WARNING
Unexpected movement of components
Injury due to impact or crushing.
• Before working on the product: secure the slide to prevent unintentional move-
ment.
WARNING
Risk of injury due to unexpected movement of components.
• Protect the positioning range from unwanted intervention.
• Keep foreign objects out of the positioning range.
•Perform commissioning with low dynamic response.
CAUTION
For vertical or slanted mounting position: when power is off, moving parts can
travel or fall uncontrolled into the lower end position.
Injury due to impacts or crushing.
•Bring moving parts of the product into a safe end position or secure them
against falling.
Malfunction Possible cause Remedy
Loud running noises,
vibrations or rough
running of the axis.
Torsional stresses –Install axis without tension. Make sure that
the contact surface is flat è 6.3 Mounting
axis.
–Change the layout of the attachment compo-
nent (e.g. payload).
–Align axes parallel to each another.
Resonance oscillation
of the axis.
Change the travel velocity.
Wear on bearing or
guide.
–Contact local Festo Service.
–Replace axis è www.festo.com/catalogue.
Vibrations on the slide. Operation at the reso-
nant frequency of the
axis.
–Change the travel velocity.
–Change the acceleration.
–Increase axis stiffness (e.g. shorter support
distances).
–Change the payload geometry.
Long oscillations of the
profile.
Resonant frequency of
profile and payload too
low.
–Increase axis stiffness (e.g. shorter support
distances).
–Change the payload geometry.
Slide does not move. Loads too high. Reduce forces and torques. Consider dynamics.
Screws for mounting
the attachment com-
ponent are too long
(e.g. payload).
Observe the screw-in depth è Tab. 4 Informa-
tion on attachment component.
Overruns the end posi-
tion.
Sensor does not
switch.
Check sensor, installation and parameterisation.
Wave formation on the
cover strip or alumi-
nium abrasion on the
axis.
Wear on belt reversals. –Retension cover strip è Checking the cover
strip.
–Replace belt reversal and cover strip
è www.festo.com/spareparts.
Tab. 6: Overview of fault clearance
10.2 Repair
The product can be repaired or maintained.
–Spare parts and accessories è www.festo.com/spareparts.
–Replace with an identical product è www.festo.com/catalogue.
11 Disassembly
WARNING
Unexpected movement of components
Injury due to impact or crushing.
• Before working on the product: secure the slide to prevent unintentional move-
ment.
WARNING
Risk of Injury due to Unexpected Movement of Components
For vertical or slanted mounting position: when power is off, moving parts can
travel or fall uncontrolled into the lower end position.
•Bring moving parts of the product into a safe end position or secure them
against falling.
1. Disconnect electrical installation (if installed).
2. Remove the mounted attachment component.
3. Remove the mounted connecting component to the drive axis.
4. Remove the mounted accessories (if present).
5. Remove the mounting attachments.
6. Observe transport information è 5 Transport and storage.
12 Technical data
12.1 Technical data, mechanical
Use the Festo sizing software for sizing the driveè www.festo.com/sp.
Additional information è www.festo.com/catalogue.
Size 32 45 60 80
Design Mechanical axis
Guide Recirculating ball bearing guide
Mounting position any
Max. displacement force [N] 2 4.5 6.75 15
Max. velocity [m/s] 1.5
Max. acceleration [m/s2]15
Ambient temperature [°C] 0 … +50
Storage temperature [°C] –20 … +60
Degree of protection IP40
Max. permissible forces and torques on the slide
Fy [N] 150 300 600 900

Size 32 45 60 80
Fz [N] 300 600 1800 2700
Mx [Nm] 1.3 5.5 29.1 59.8
My [Nm] 1.1 4.7 31.8 56.2
Mz [Nm] 1.1 4.7 31.8 56.2
Calculating the load comparison factor
fv
Tab. 7: General data, ELFC
Size 32 45 60 80
Materials
Note on materials Contains PWIS
Profile Anodised aluminium
End cap Die-cast aluminium, painted
Slide Die-cast aluminium
Guide
Screws
Steel
Cover strip High-alloy steel
Guide pulley Aluminium
Weight
Basic weight at 0 mm stroke [kg] 0.17 0.38 1 1.9
Added weight per 1000 mm
stroke
[kg] 1.1 2.3 4.3 7.3
Tab. 8: Materials and weight
12.2 Characteristic curves
Additional characteristic curves è www.festo.com/catalogue
Additional information è www.festo.com/catalogue.
Support spacing ELFC-KF-32/45/60/80
Maximum permissible support distance L (without profile mounting EAHF) as a
function of force Fy/Fz with a maximum deflection of 0.5 mm.
Support spacing Force load
Tab. 9: Overview of support spacing and force load
Additional support spacing is not required for support points for the ELFC-KF-32.
Fig. 5: ELFC-KF-45, support distances L as a function of force Fy
ELFC-KF-45
Fig. 6: ELFC-KF-60/80, support distances L as a function of force Fy
ELFC-KF-60 ELFC-KF-80
Fig. 7: ELFC-KF-45, support distances L as a function of force Fz
ELFC-KF-45
Fig. 8: ELFC-KF-60/80, support distances L as a function of force Fz
ELFC-KF-60 ELFC-KF-80