Festo ELGC-BS-KF Parts list manual

8095590
ELGC-BS-KF
Spindle axis
8095590
2018-08c
[8095592]
Instructions| Operat-
ing

Translation of the original instructions
2 Festo — ELGC-BS-KF — 2018-08c

3Festo — ELGC-BS-KF — 2018-08c
1 Further applicable documents..................................................................................... 4
2 Safety........................................................................................................................... 4
2.1 Safety instructions........................................................................................................ 4
2.2 Intended use................................................................................................................ 4
2.3 Training of specialised personnel................................................................................. 4
3 Further information..................................................................................................... 4
4 Service..........................................................................................................................4
5 Product overview......................................................................................................... 5
5.1 Function....................................................................................................................... 5
5.2 Product design............................................................................................................. 5
6 Transport..................................................................................................................... 5
7 Mounting..................................................................................................................... 6
7.1 Preparation................................................................................................................... 6
7.2 Mounting...................................................................................................................... 7
7.3 Attachment................................................................................................................... 7
7.4 Mounting accessories................................................................................................... 8
8 Commissioning............................................................................................................ 9
9 Service..........................................................................................................................11
9.1 Cleaning....................................................................................................................... 12
10 Fault clearance............................................................................................................ 13
11 Disassembly................................................................................................................ 14
12 Disposal........................................................................................................................14
13 Technical data............................................................................................................. 15
13.1 Technical data, mechanical........................................................................................... 15
13.2 Technical data, characteristic curves............................................................................ 17
Table of contents

1 Further applicable documents
All available documents for the product èwww.festo.com/pk.
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 environment. 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 to be used for positioning payloads in combination with tools or as a drive when
external guides are used. The axis is approved for the slide operating mode è Fig.1.
Fig. 1 Slide mode
2.3 Training of specialised personnel
Installation, commissioning, maintenance and disassembly should only be conducted by qualified per-
sonnel.
The qualified personnel must be familiar with installation of electrical control systems.
3 Further information
– Accessories èwww.festo.com/catalogue.
– Spare parts èwww.festo.com/spareparts.
4 Service
Contact your regional Festo contact person if you have technical questions èwww.festo.com.
Further applicable documents
Festo — ELGC-BS-KF — 2018-08c4

5 Product overview
5.1 Function
A rotating ball screw drive converts the rotation of a motor into straight-line motion. As a result, the
slide moves backwards and forwards. The slide is ball-bearing guided. The reference position of the
slide can be determined using proximity sensors (è 7.4 Mounting accessories) or by homing a fixed
stop (motor-side end position).
5.2 Product design
1Drive hub
2Interface for motor mounting kit
3Cover strip
4Slide
5Thread/centring holes for attachment com-
ponents
6Thread for accessories
7Profile housing with ball guide
8Sealing air connection
9Slot for sensor bracket
10 Slots for attachment
Fig. 2 Product design ELGC-BS-KF
6 Transport
NOTICE!
Unexpected and unbraked movement of components
• Secure moving components for transport.
• Take product weight into account è 13 Technical data.
Product overview
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7 Mounting
7.1 Preparation
– Unscrew screws and threaded pins only when requested.
– Select the motor and motor mounting kit from Festo èwww.festo.com/catalogue.
When using other motors: observe the limit values for forces, torques and speeds
è 13 Technical data.
– When mounting the motor: follow the instruction manual for the motor mounting kit.
– In case of large or heavy motors: support the axis-motor combination so that it is free from ten-
sion.
– Connect motor cables only after the axis is mounted.
NOTICE!
The reference position is lost when the motor is dismounted (e.g. when turning the motor around).
• Start homing è 8 Commissioning.
Fig. 3
CAUTION!
For vertical or slanted mounting position: when power is off, moving parts can travel or fall uncon-
trolled 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.
– Place the product in such a way that the operating elements can be reached (e.g. belt reverser).
– Install product without tension or distortion.
– Secure the product to a mounting surface. Evenness: 0.05% of the stroke length, but max.
0.5mm.
For gantry applications, attention must also be paid to parallel alignment or product height when
aligning the axes.
For additional information, contact your local Festo Service.
Mounting
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7.2 Mounting
1. Select mounting components èwww.festo.com/catalogue.
2. To prevent collisions, mount the mounting components outside the positioning range.
3. Attach the axis to the profile (e.g.with profile mounting EAHF-L2).
4. Tighten the screws.
Fig. 4
7.3 Attachment
Requirements
NOTICE!
A warped attachment component bends the slide and shortens the service life of the guide.
• Use an attachment component with an even surface. Evenness: t = 0.01mm
Fig. 5 Use an even attachment component
1. Position the attachment component.
Keep the tilt moment resulting from the force (parallel to the axis of movement) and lever arm as
small as possible.
2. Avoid collisions of the mounting part and payload with other attachments.
Mounting
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Mounting
1. Fasten the attachment to the slide with screws and centring sleeves.
2. Observe the maximum screw-in depth D and tightening torque.
Fig. 6 Screw-in depth D
Size 32 45 60 80
Screw M3 M4 M5 M6
Screw-in depth D [mm] 4…5 6…7.5 8.5…10 11…14
Tightening torque [Nm] 1.2 2.9 5.9 9.9
Centring H7 [mm] Æ2 Æ4 Æ5 Æ7
Tab. 1
For attachment components with their own guide:
• Adjust the guide and axis so that they are exactly parallel or use a connection that permits toler-
ance compensation. In this way, the guide is not overloaded.
7.4 Mounting accessories
To protect the end positions against uncontrolled overtravel:
• Check the necessity of proximity sensors (hardware limit switches).
If proximity sensors are used as limit switches:
• Preferably use proximity sensors with normally closed function.
This protects against excess travel beyond the end position, if the proximity sensor cable is
broken.
If proximity sensors are used as reference switches:
• Use proximity sensors that correspond to the input of the controller being used.
In case of inductive proximity sensors: use a switch lug èAssembly instructions of the accessor-
ies.
Mounting
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Proximity sensor mounting
• Use the proximity sensor with sensor bracket [A] in the slot 9èAssembly instructions of the
accessories.
Fig. 7
Prevention of contamination
• Connect sealing air. To do so, remove the sealing element 8 from the housing and connect the
compressed air/vacuum.
Fig. 8
8 Commissioning
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.
Commissioning
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NOTICE!
Incorrect set values for the braking ramp in STOP statuses (e.g.EMERGENCY OFF, Quick Stop) result in
an overloading of the spindle axis and can destroy it or drastically reduce its service life.
• Check the settings for all braking ramps in the controller or the higher-order control system (decel-
eration values and jerk).
• Adjust delay values (braking delay, delay times) in such a way that the maximum driving torque,
acceleration or maximum feed force is not exceeded. In the process, take the following into con-
sideration:
– Travel speed
– Moving mass
– Mounting position
• When designing the spindle axis, use the Festo engineering software PositioningDrives
èwww.festo.com.
NOTICE!
Block-shaped acceleration profiles (without jerk limitation) cause high peaks in the drive force that
can lead to an overloading of the drive. Due to overshooting effects, positions outside of the permiss-
ible range may also occur. A jerk-limited acceleration specification reduces vibrations in the entire sys-
tem and has a positive effect on stress in the mechanical system.
• Check the controller settings and adapt if necessary (e.g. jerk limitation, smoothing of the accel-
eration profile).
NOTICE!
Axes of the same design may demonstrate different running noises depending on the respective com-
ponent.
The following factors may also influence this issue:
• Parameterisation
• Operating mode
• Type of mounting
• Installation situation (e.g.rigidity of the foundation, vibration behaviour, resonance frequencies)
Commissioning
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Procedure Purpose Note
1. Control travel Determining the approach direc-
tion of the motor
Even with identical control, motors of the
same design can turn in opposite directions
due to different wiring.
2. Homing Comparison of real situation to
the image of the controller
Homing takes place:
– towards the reference switch
– towards the motor-side end stop. Com-
ply with maximum impact energy
è Tab. 3.
Observe additional information èOperat-
ing instructions of the drive system.
3. Test run Checking the overall behaviour Check the following requirements:
– The slide moves through the intended
positioning cycle completely.
– Slide stops as soon as a limit switch is
reached.
After a successful test run, the axis is ready
for operation.
Tab. 2
Size 32 45 60 80
Max. impact energy1) [10-3J] 0.25 0.5 1.0 2.0
1) max. Speed of homing for all sizes: 0.01m/s
Tab. 3
9 Service
WARNING!
Unexpected movement of components.
Injury due to impacts or crushing.
• Before working on the product, switch off the control and secure it to prevent it from being
switched back on accidentally.
Checking wear
• Regularly check the reversing backlash of the slide for spindle nut wear. The wear on the ball
screw will lead to increased noise in the long term and eventually cause the ball screw drive to
block or the spindle nut to break. The maximum permissible reversing backlash is 0.2mm.
Checking the cover strip
• Check the cover strip after every 2000km of operating distance.
Waves on the cover strip are a sign of wear on the belt reversal device.
Service
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Fig. 9
Whenever waves form, retighten cover strip on both sides:
1. Loosen the screws [C] è Fig.9.
2. Push the cover strip into the cover.
3. Tighten cover strip with a clamping element [B] è Fig.9.
Clamping element èwww.festo.com/catalogue.
4. Tighten the screws. Tightening torque: size 32/45: 0.2Nm; size 60/80: 0.8Nm.
If the cover strip can no longer be retensioned:
• Replace belt reversal devices and covering èwww.festo.com/spareparts.
9.1 Cleaning
Do not clean the guide elements (e.g. guide rails).
• Clean the outside of the product with a soft cloth. Do not use aggressive cleaning agents.
Service
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10 Fault clearance
Fault description Cause Remedy
Coupling spacing is wrong. Observe the permissible coup-
ling spacings èInstruction
manual for motor mounting kit.
Tensions – Install axis without tension.
Observe the evenness of
the mounting surface
è 7.1 Preparation.
– Change the arrangement of
the attachment ele-
ment/useful load.
– Align axis so it is exactly
parallel to the second axis.
Squeaking noises, vibrations or
the axis is not running
smoothly.
Controller is set incorrectly. Change the parameters
(e.g.controller data).
Vibrations on the carriage Operation at the resonance
point of the axis.
– Change the travel speed.
– Change the acceleration.
– Reinforce the axis mount-
ing.
– Change the useful load geo-
metry.
The swing-out time of the pro-
file is too long.
The resonant frequency from
the profile and useful load are
too low
– Reinforce the axis mount-
ing.
– Change the useful load geo-
metry.
Coupling spins. Check the mounting of the
shaft-hub connection
èAssembly instructions of the
motor mounting kit.
Loads too high. Reduce load mass/torques.
Slide does not move.
Retaining screws on tool are too
long.
Observe the screw-in depth
è 7.3 Attachment.
The reversing backlash is too
large (è 9 Service).
Wear Replace axis
èwww.festo.com/catalogue.
Fault clearance
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Fault description Cause Remedy
The idling torque increases. Wear Replace axis
èwww.festo.com/catalogue.
Slide travels over end position. Proximity sensor does not
switch.
Check proximity sensor, connec-
tions and controller.
Cover strip has waves or alu-
minium wear on axis.
Wear on belt reversal device – Retension cover strip
è 9 Service.
– Replace the belt reversal
device
èwww.festo.
com/spareparts.
Tab. 4
11 Disassembly
WARNING!
Unexpected movement of components.
Injury due to impacts or crushing.
• Before working on the product, switch off the control and secure it to prevent it from being
switched back on accidentally.
1. Observe transport information è 6 Transport.
2. Remove motor cables and mounting components.
Information about spare parts and accessories èwww.festo.com/spareparts.
12 Disposal
ENVIRONMENT!
Send the packaging and product for environmentally sound recycling in accordance with the current
regulations èwww.festo.com/sp.
Disassembly
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13 Technical data
13.1 Technical data, mechanical
Sizes1) 32 45 60 80
Spindle pitch [mm/re-
v]
8 10 12 16
Design Electromechanical axis with ball screw drive
Guide Recirculating ball bearing guide
Mounting position Any
Max. feed force Fx[N] 40 100 200 350
Max. no-load driving torque2) [Nm] 0.04 0.12 0.25 0.40
Max. rotational speed [1/min] 4500 3600 4000 3750
Max. speed [m/s] 0.6 0.8 1
Max. acceleration [m/s2] 15
Repetition accuracy [mm] ±0.015 ±0.01
Reversing backlash (new) [mm] <0.15
Reversing backlash (limit value) (è 9 Service)
Feed constant [mm/re-
v]
8 10 12 16
Ambient temperature [°C] 0…+50
Storage temperature [°C] –20…+60
Degree of protection IP40
2nd degree of surface torque
Iy[mm4] 38 x 103140 x 103441 x 1031.37 x 106
Iz[mm4] 45 x 103170 x 103542 x 1031.66 x 106
Max. permitted forces on the slide1)
Fy[N] 150 300 600 900
Fz[N] 300 600 1800 2700
Technical data
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Sizes1) 32 45 60 80
Spindle pitch [mm/re-
v]
8 10 12 16
Max. permitted torques on the slide1)
Mx[Nm] 1.3 5.5 29.1 59.8
My = Mz[Nm] 1.1 4.7 31.8 56.2
1) The PositioningDrives engineering software is available for sizing tasks èwww.festo.com/sp.
2) measured at max. speed.
Tab. 5 General data
Size 32 45 60 80
Note on materials Contains materials that include PWIS1)
Materials
Cover Aluminium, lacquered
Profile Anodised aluminium
Slide Aluminium
Guide, screws, ball bearings,
spindles, cover strip
Steel
Coverings PA
Belt reversal POM
Weight
Zero stroke length [kg] 0.30 0.73 1.70 2.95
Per metre of stroke [kg] 1.8 3.6 5.1 8.8
1) PWIS = paint-wetting impairment substances
Tab. 6 Materials and weight
Technical data
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13.2 Technical data, characteristic curves
Speedv and working strokel
Fig. 10 ELGC-BS-KF-32
Fig. 11 ELGC-BS-KF-45
Technical data
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Fig. 12 ELGC-BS-KF-60
Fig. 13 ELGC-BS-KF-80
Technical data
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Copyright:
Festo SE & Co. KG
Ruiter Straße 82
73734 Esslingen
Germany
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