Festo ELGC-TB-KF Parts list manual

8095599
ELGC-TB-KF
Toothed belt axis
8095599
2018-08a
[8095601]
Instructions| Operat-
ing

Translation of the original instructions
2 Festo — ELGC-TB-KF — 2018-08a

3Festo — ELGC-TB-KF — 2018-08a
1 Further applicable documents..................................................................................... 4
2 Safety........................................................................................................................... 4
2.1 Safety instructions........................................................................................................ 4
2.2 Intended use................................................................................................................ 4
2.3 Foreseeable misuse...................................................................................................... 4
2.4 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..........................................................................................................................10
9.1 Cleaning....................................................................................................................... 11
10 Fault clearance............................................................................................................ 12
11 Disassembly................................................................................................................ 13
12 Disposal........................................................................................................................13
13 Technical data............................................................................................................. 14
13.1 Technical data, mechanical........................................................................................... 14
13.2 Technical data, characteristic curves............................................................................ 16
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 Foreseeable misuse
The axis is not approved for operating conditions in which vegetable and water-soluble greases or oils
can penetrate into the axis.
2.4 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-TB-KF — 2018-08a4

5 Product overview
5.1 Function
A toothed belt on the drive shaft converts the rotary movement of a motor into a linear movement. As
a result, the slide 4moves backwards and forwards. The slide is ball-bearing guided. The reference
position of the slide can be queried by means of a proximity sensor (è 7.4 Mounting accessories) or
determined by referencing against a fixed stop (end position on motor side).
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
6 Transport
NOTICE!
Unexpected and unbraked movement of components
• Secure moving components for transport.
1. Take product weight into account è 13 Technical data.
Product overview
5Festo — ELGC-TB-KF — 2018-08a

2. Comply with maximum permitted support clearances when attaching transportation aids
è 13.2 Technical data, characteristic curves.
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.
– Fasten product to a mounting surface with flatness of 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
6 Festo — ELGC-TB-KF — 2018-08a

– Take the required support spacings into consideration
è 13.2 Technical data, characteristic curves.
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
7Festo — ELGC-TB-KF — 2018-08a

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 45 60 80
Screw M4 M5 M6
Screw-in depth D [mm] 6…7.5 8.5…10 11…14
Tightening torque [Nm] 2.9 5.9 9.9
Centring H7 [mm] 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
8 Festo — ELGC-TB-KF — 2018-08a

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
9Festo — ELGC-TB-KF — 2018-08a

NOTICE!
The toothed-belt elasticity changes acceleration of the axis through the spring effect. This might result
in deviations from the acceleration set at the controller.
• Take deviations into account accordingly.
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Instruc-
tion manual 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 45 60 80
Max. impact energy1) [10-3J] 0.125 0.25 0.75
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.
Service
10 Festo — ELGC-TB-KF — 2018-08a

NOTICE!
Retensioning shortens the service life of the toothed belt.
• Do not retension toothed belt.
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.
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 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
11Festo — ELGC-TB-KF — 2018-08a

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.
Resonance point of the actuator Change the travel speed.
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Instruc-
tion manual of the motor
mounting kit.
Loads too high. Reduce load mass/torques.
Retaining screws on tool are too
long.
Observe the screw-in depth
è 7.3 Attachment.
Slide does not move.
Toothed belt has broken Replace axis
èwww.festo.com/catalogue.
Slide travels over end position. Proximity sensor does not
switch.
Check proximity sensor, connec-
tions and controller.
Fault clearance
12 Festo — ELGC-TB-KF — 2018-08a

Fault description Cause Remedy
Controller is set incorrectly. Change the parameters
(e.g.controller data).
Toothed belt jumps off.
Toothed belt tension is too low. Contact local Festo Service.
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.
Toothed belt wear Wear on the toothed belt Replace axis
èwww.festo.com/catalogue.
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
13Festo — ELGC-TB-KF — 2018-08a

13 Technical data
13.1 Technical data, mechanical
Sizes1) 45 60 80
Design Electromechanical axis with toothed belt
Guide Recirculating ball bearing guide
Mounting position Any
Max. feed force Fx[N] 75 120 250
Max. no-load driving torque2) [Nm] 0.08 0.20 0.42
Max. driving torque Mmax. [Nm] 0.72 1.49 4.18
Max. speed [m/s] 1.2 1.5 1.5
Max. acceleration [m/s2] 15
Repetition accuracy [mm] ±0.1
Feed constant [mm/re-
v]
60 78 105
Ambient temperature [°C] 0…+50
Storage temperature [°C] –20…+60
Degree of protection IP40
2nd degree of surface torque
Iy[mm4] 140 x 103441 x 1031.37 x 106
Iz[mm4] 170 x 103542 x 1031.66 x 106
Max. permitted forces on the slide1)
Fy[N] 300 600 900
Fz[N] 600 1800 2700
Technical data
14 Festo — ELGC-TB-KF — 2018-08a

Sizes1) 45 60 80
Max. permitted torques on the slide1)
Mx[Nm] 5.5 29.1 59.8
My = Mz[Nm] 4.7 31.8 56.2
1) The PositioningDrives engineering software is available for sizing tasks èwww.festo.com/sp.
2) at a speed of 0.2m/s
Tab. 5 General data
Size 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
Toothed belt CR(glass-fibre reinforced)
Weight
Zero stroke length [kg] 0.76 1.78 3.50
Per metre of stroke [kg] 2.3 4.3 7.3
1) PWIS = paint-wetting impairment substances
Tab. 6 Materials and weight
Technical data
15Festo — ELGC-TB-KF — 2018-08a

13.2 Technical data, characteristic curves
Force Fy/Fz and support spacing L at a max. sag of 0.5mm
Force alignment Support spacing L
Tab. 7
Fig. 10 ELGC-TB-KF-45
Fig. 11 ELGC-TB-KF-45
Technical data
16 Festo — ELGC-TB-KF — 2018-08a

Fig. 12 ELGC-TB-KF-60
Fig. 13 ELGC-TB-KF-60
Technical data
17Festo — ELGC-TB-KF — 2018-08a

Fig. 14 ELGC-TB-KF-80
Fig. 15 ELGC-TB-KF-80
Technical data
18 Festo — ELGC-TB-KF — 2018-08a

Reproduction, distribution or sale of this document or communic-
ation of its contents to others without express authorization is
prohibited. Offenders will be liable for damages. All rights
reserved in the event that a patent, utility model or design patent
is registered.
Copyright:
Festo SE & Co. KG
Ruiter Straße 82
73734 Esslingen
Germany
[phone]
[phone]
Fax:
[email protected]
www.festo.com
Internet:
Phone:
e-mail: