Festo DGE ZR RF Series, Инструкции по ремонту

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28 / 44 Festo 7DGE_ZR_RFb_en
Note
Incorrect set values for the braking ramp during STOP conditions (e.g. emergency stop, quick stop) result in over-
loading of the toothed belt axis and can destroy it or dramatically reduce its service life.
• Check the settings for all braking ramps in your controller or the higher-order control system (deceleration values
and jerk).
• Make sure that the deceleration values (braking deceleration, deceleration times) for the speed, the load to be
moved and the installation position (horizontal/vertical) as well as the specified maximum drive torque or the feed
force correspond to the permissible values for the toothed belt axis used.
• Use the Festo “Positioning Drives” sizing software, available via the Festo website ( www.Festo.com ), to size the
toothed belt axis.
Note
Block-shaped acceleration profiles (no jerk limitation) cause high peaks in the drive force that can lead to overloading
of the drive. Positions outside of the permissible range can also occur.
A smoothed acceleration specification reduces vibrations in the entire system and has a positive effect on the stresses
and strains to which the mechanical system is subjected.
• Check which closed-loop controller settings can be adapted (e.g. jerk limitation, smoothing of the acceleration
profile).
4.3.1 Dismantling the slides
Replacing the stop buffers
Note
You can replace the stop buffers without removing the slide.
• Lever the stop buffers out of both front sides of the slide and replace them.
Replacing the track rollers
Note
The track rollers should at least be replaced in pairs, or ideally all four at the
same time.
Check the guide rails for damage before replacing the track rollers. Defective
guide rails cannot be replaced.
Note
A drive cover must be removed to replace the track rollers. To do this, carry
out the steps described in section
4.2.1 “Removing the drive covers” .