Aventics R499050077 Instrucciones De Servicio página 71

Impact stress with
different cushioning
settings
Impact stress
D
B
A
C
Travel time during
cushioning
Pos. A–D
Cushioning settings
Pos. A
Low flow rate
Pos. D
High flow rate
AVENTICS | ITS | R412020619–BAL–001–AD
Proceed as follows:
1. Turn the throttle screws for cushioning clockwise up to the
stop and then turn them back a full rotation.
This basic setting (A) prevents the piston from impacting
without cushioning and damaging the cylinder.
If the piston moves into the end position with an oscillating
movement:
2. Turn the throttle screw counterclockwise to reduce the
cushioning.
The cushioning procedure will be shortened and the impact
stress increased (B).
3. Turn the throttle screw further counterclockwise until the
impact stress is at a minimum (C).
4. The piston speed will increase as a result of this.
If a loud impact is audible (D):
5. Turn the throttle screw clockwise until the impact stress is at
a minimum (C).
Ideal cushioning has been attained when the total stroke time is
short with a minimal impact noise.
In large pneumatic systems, the working pressure can change
depending on the number of consumers. Cushioning must
then be adapted to the modified working pressure.
If you change the piston speed or moved mass:
Readjust the cushioning.
An optimally adjusted cushioning reduces stress on the
cylinder and system vibrations. Additionally, cylinder speeds
can be optimized and the precision of your application
increased.
Commissioning and Operation
69