Festo EGSC-BS, Operating Instructions

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9.4 Lubrication
Lubrication interval and accessories
Lubrication Ball screw
drive BS Recirculating ball
bearing guide KF Piston rod
Lubrication interval Lubrication for life If required, e.g. if the
grease layer is insuffi-
cient.
Accessories
Lubrication point
— Interface
Lubricant — ELKALUB VP 922,
ChemieTechnik, Vöh-
ringen
Tab. 12: Overview of lubrication intervals and accessories
10 Malfunctions
10.1 Fault clearance
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.
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.
Malfunction Possible cause Remedy
Loud running noises
or vibrations or rough
running of the slide. Coupling distance too
short. Observe permissible coupling spacings
è Instruction manual for motor mounting kit
è www.festo.com/sp.
Torsional stresses
–
Install the mini slide without tension. Make
sure that the contact surface is flat
è
6.4
Mounting mini slide.
–
Change the layout of the attachment compo-
nent, e.g. payload.
–
Align slide and attached guide element par-
allel to each other.
Current controller set-
tings. Optimise controller values, e.g. velocity, acceler-
ation, etc.
Resonance oscillation
of the slide. Change the travel velocity.
Wear on bearing or
guide.
–
Contact local Festo Service.
–
Replace slide è www.festo.com/catalogue.
Wear of the ball screw
drive.
–
Check reversing backlash è 9.2 Checking
slide elements.
–
Contact local Festo Service.
–
Replace slide
è
www.festo.com/catalogue.
Insufficient lubrication
of the piston rod. Lubricate the piston rod è 9.4 Lubrication.
Vibrations on the slide. Operation at the res-
onance point of the
slide.
–
Change the travel velocity.
–
Change the acceleration.
–
Increase slide rigidity, e.g. shorter support
distances.
–
Change the payload geometry.
Long oscillations of the
profile. Resonant frequency of
profile and payload too
low.
–
Increase slide rigidity, e.g. shorter support
distances.
–
Change the payload geometry.
Slide does not move. Coupling slips. Check the mounting of the shaft-hub connection
è Instruction manual of the motor mounting kit,
è
www.festo.com/sp.
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 6.5 Mounting the
attachment component.
Ball screw drive
blocked.
–
Contact local Festo Service.
–
Replace slide
è
www.festo.com/catalogue.
Pre-tension of toothed
belt too high in parallel
kit. Reduce the pre-tension of the toothed
belt
è Instruction manual for parallel kit,
è www.festo.com/sp.
Operation at the lower
ambient temperature
limit.
–
Optimise controller data, e.g. velocity, accel-
eration, ...
–
Use gear unit.
Slide jammed in the
mechanical end posi-
tion. Manually releasing a jam:
–
Switch off the controller and lock it to prevent
it from being switched on again unintention-
ally.
–
Remove motor and motor mounting kit.
–
Rotate drive shaft freely.
Overruns the end posi-
tion. Sensor does not
switch. Check sensor, installation and parameterisation.
Idling torque too high. Wear in the drivetrain.
–
Contact local Festo Service.
–
Replace slide è www.festo.com/catalogue.
Tab. 13: Overview of fault clearance
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.
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 installations.
2. Remove the mounted attachment component.
3. Remove the attached accessories.
4. Remove motor and mounting kit.
5. Remove the mounting attachments.
6. Observe transport information
è
5 Transport.
12 Technical data
12.1 Technical data, mechanical
Use the Festo sizing software for sizing the drive è www.festo.com/sp.
Additional information
è
www.festo.com/catalogue.
EGSC-BS-25/32
Size 25 32
Spindle pitch 2P 6P 3P 8P
Design Mini slide with ball screw drive
Guide Recirculating ball bearing guide
Mounting position any
Max. perm. payload [kg] 2 6
Max. feed force F
x
[N] 20 60
Max. driving torque [Nm] 0.02 0.05 0.07 0.135
No-load driving torque at v
max
[Nm] 0.015 0.029 0.044 0.042
Max. rotational speed [rpm] 4000 3750
Max. velocity v
max
[m/s] 0.133 0.4 0.188 0.5
Max. acceleration [m/s
2
] 5 15 5 15
Repetition accuracy [mm] ± 0.015
Max. reversing backlash [mm] è 9.2 Checking slide elements
Feed constant [mm/
rev] 2 6 3 8
Duty cycle [%] 100
Relative humidity [%] 0 … 95 (non-condensing)
Ambient temperature [°C] 0 … +50
Storage temperature [°C]
z
20 … +60
Degree of protection IP40
Max. permissible force on the drive hub
Max. transverse load Fx, Fy
[N] 30 75
Max. permissible forces and torques on the guide centre
Fy
[N] 669 991
Fz [N] 669 991
Mx [Nm] 2 3.4
My [Nm] 2.1 3.2
Mz [Nm] 2.1 3.2
Distance to the guide centre when the slide is retracted
H13
[mm] 7.3 7.9
L6 [mm] 25.1 31.8
Calculating the load comparison factor
fv
Tab. 14: General data, EGSC-BS-25/32