Assembling The Cylinder; Commissioning; Setting The Speed; Adjusting Pneumatic Cushioning - Emerson AVENTICS ITS Serie Betriebsanleitung

The preferred medium is oil-free compressed air.
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Compressed air quality: see "Technical Data".

7.2 Assembling the cylinder

1. Make sure that all relevant system parts are not under voltage or pressure be-
fore mounting the cylinder. Protect the system against being restarted.
Depending on your configuration, you can mount the product in different ways.
The content of delivery only includes the mounting you selected in the configura-
tor.
– You can find the exact dimensions of the mountings for your cylinder in
the online catalog.
– Install the cylinder in your system so the pneumatic connections and, if
present, throttle screws for the cushioning are always accessible.
2. Fix the cylinder on the bracket in your system part so that it is not under ten-
sion. Observe the maximum permissible tightening torque values listed in the
online catalog. General technical standards apply if no information is given or
if you use your own mounting materials.
3. Remove the blanking plugs at the pneumatic connections.
4. Make the pneumatic connections for the cylinder. You can find the pneumatic
connection technology for cylinder tubing in the online catalog.
5. Mount the useful load onto the piston rod. Depending on the configuration,
you can mount the useful load onto the internal or external thread. Observe
the permissible piston forces.
You can find the maximum possible piston forces in the online catalog.
On double-acting cylinders, the effective piston surface and piston
force are lower during retraction than extension due to the cylinder
piston rod. This does not apply to cylinders with a through piston rod.

8 Commissioning

Danger of explosion due to heat generation!
The cylinder generates heat during operation. Explosion protection is no
longer guaranteed when specified limits are exceeded.
Observe the limits specified under "Technical Data" and on the rating
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plates.
Danger of explosion due to excessive operating frequencies and piston
speeds!
Excessive operating frequencies and piston speeds overheat the cylinder and
present an explosion hazard.
1. Never exceed the maximum permissible double-stroke frequency:
Cylinder Ø up to 25 mm: 0.33 Hz
Cylinder Ø 32 mm or above: 0.4 Hz
2. Never exceed the maximum piston speed of 1 m/s.
Danger of burns caused by hot surfaces!
Touching the surfaces of the product during operation could cause burns.
1. Let the product cool off before working on it.
2. Do not touch the product during operation.
Danger due to noise!
Hearing damage due to exhaust and impact noise
Correctly adjust the cushioning.
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AVENTICS™ | R412005817-BAL-001-AI | English
DANGER
DANGER
CAUTION
CAUTION
Danger due to sudden escaping of compressed air!
Uncontrolled piston rod movement!
1. Ensure that no one can reach into the system's work area and that no ob-
jects can penetrate it.
2. If necessary, assemble a protective barrier.
3. Slowly pressurize the system to the stipulated working pressure.

8.1 Setting the speed

Danger of explosion due to heat generation!
Excessive piston speeds overheat the cylinder and present an explosion hazard.
Never exceed the maximum piston speed of 1 m/s.
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Risk of injury or damage!
A cylinder that is operated without speed control can reach high piston speeds,
and may cause injury or machine breakdown.
Make sure that the cylinder is always operated with speed control, e.g. by
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using check-choke valves with exhaust air throttling.
The speed is normally controlled by throttling the exhaust air from the cylinder
chambers with, for example, check-choke valves with exhaust air throttling.
Damage to the cylinder due to screwing in the check-choke valves too far!
1. Note the thread length of the check-choke valves if they are directly
mounted in the cylinder covers.
2. Observe the wrench flats and wrench sizes.
When the speed is being set, the cylinder must be loaded as in normal service and
the speed must be increased gradually to the desired operating speed.
Do not set the operating speed higher than necessary. The speed must be
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adapted to the load of the cylinder in order to not exceed the maximum per-
mitted cushioning energy. Use the calculation program in the online catalog.
Set the piston speed as follows:
1. Make sure that the pressure is zero and then increase the pressure slowly to
the desired working pressure.
2. Slightly open the check-choke valves.
3. Increase the piston speed by opening the check-choke valves gradually to
reach the desired operating speed.

8.2 Adjusting pneumatic cushioning

If you change the piston speed, the moving mass, or the working pres-
sure, you have to adjust the pneumatic cushioning.
Fig. 4: Setting the cushioning
Depending on the configuration, your cylinder may be equipped with two pneu-
matic cushions. The cushioning is adjusted using throttle screws at both ends of
the cylinder.

8.2.1 Basic setting

Turn the two flow control screws clockwise up to the stop and then turn them
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back out a full rotation.
This will prevent the piston from impacting without cushioning.
CAUTION
DANGER
CAUTION
NOTICE
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