DNCKE−...−S / KEC−...−S
6.3
Test run
Comply with limits for all loads.
For setting the speed and pneumatic cushioning:
1. First, completely screw in screws of the up
stream one-way flow control valves aA and
the pneumatic cushioning aB at the DNCKE,
then unscrew again around one turn.
2. Pressurise the complete system slowly, e.g. with the soft-start valve type HEL.
3. Pressurise the cylinders simultaneously at both supply ports (1 è Fig. 1, only for DNCKE).
This prevents movement in the direction of the unpressurised cylinder chambers.
4. Pressurise the clamping unit at the supply port (2 è Fig. 1) with at least 3.8 bar.
The piston rod might already then move slowly into the extended end position.
5. Start a test run at low cycle rate and at low impact speed.
6. Repeat the test run, increasing the speed in steps until the operating speed is reached.
If the speed is set correctly, the payload (e.g. the moved machine part) will reach the end position
without striking hard against it.
7. In the test run, check whether the following equipment settings need to be modified.
– speed of the payload
– pneumatic cushioning
– clamping force
After completing the necessary adjustments:
8. End the test run.
Festo – DNCKE−...−S / KEC−...−S – 1511b English
aA
aB
Fig. 20
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