Care And Maintenance; Troubleshooting - Aventics TRB Series Betriebsanleitung

AVENTICS | TRB/ITS | R414006414–BDL–001–AB | English
7 Commissioning
Danger of burns caused by hot surfaces!
Touching the surfaces of the cylinder during operation could lead to burns.
O Let the cylinder cool before making any settings.
O Do not touch the cylinder during operation.
Danger due to noise!
Hearing damage due to exhaust and impact noise
O Mount silencers on single-acting cylinders.
Danger due to sudden escaping of compressed air!
Uncontrolled movements, particularly if the measurement device is a part of a
control system whose parameters have not been set yet!
O Ensure that no one can reach into the system's work area and that no
objects can penetrate it.
O If necessary, assemble a protective barrier.
O Slowly pressurize the system to the stipulated working pressure.
Danger due to a position transducer defect!
Hazardous system states may develop if the position transducer is defective.
O Before commissioning, make sure that a defective position sensor cannot
cause any injuries or damage to equipment.
Danger due to strong magnetic or electromagnetic fields near the position
transducer!
Incorrect sensor signals.
O Make sure that the position transducer is protected against magnetic or
electromagnetic fields.
Setting the speed
Risk of injury or damage!
A cylinder that is operated without speed control can reach high speeds,
and may cause injury or machine breakdown.
O Make sure that the cylinder is always operated with speed control.
The speed is normally controlled by throttling the exhaust air from the cylinder
chambers with, for example, check-choke valves with exhaust air throttling (not in
the delivery contents).
Danger due to screwing in the check-choke valves too far!
Cylinder damage!
O Note the thread length of the check-choke valves if they are directly
mounted in the cylinder cover and base.
O 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.
O Do not set the operating speed higher than necessary. The speed must be
adapted to the load of the cylinder in order to not exceed the maximum permitted
cushioning energy. Use the calculation tool in the Internet.
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.
CAUTION
CAUTION
NOTICE
8

Care and Maintenance

Danger of burns caused by hot surfaces!
Touching the surfaces of the cylinder during operation could lead to burns.
O Let the cylinder cool before cleaning it.
O Do not touch the cylinder during operation.
Damage to the surface caused by solvents and aggressive detergents!
The seals on the cylinder may age faster under aggressive ambient conditions.
O Never use solvents or strong detergents.
1. Make sure that all relevant system parts are not under voltage or pressure.
2. Clean the cylinder at regular intervals only using a slightly moist cloth.
Only use water to do this and, if necessary, a mild detergent.
The cylinder has a lifetime lubrication and is thus maintenance-free
O However, the system-specific maintenance intervals must be observed.
O Regularly check the function of the position measurement system and all of the
connected components.
The intervals are specified by the operator depending on the on-site conditions.
O Protocol the results of the check.
If the position measurement system is not working properly,
you must decommission it and secure it against further use.
9 Disassembly, Exchange, and Disposal
Disassembling the cylinder
Danger of burns caused by hot surfaces!
Touching the surfaces of the cylinder during operation could lead to burns.
O Let the cylinder cool before disassembling it.
O Do not touch the cylinder during operation.
1. Make sure the relevant system part is not under voltage or pressure.
2. Remove the useful load from the piston rod.
3. Remove the pneumatic and electrical connections.
The cylinder can now be taken out of the bracket and removed.
Replacing the cylinder
To exchange the cylinder, you must first remove it as described above and then
mount a new cylinder (see "6 „Montage"").
After exchanging a cylinder with integrated position inquiry, we
recommend manually checking the output values in the start and end
positions of the piston rod due to dispersion caused by production.
Cylinder disposal
O Dispose of the cylinder in accordance with your country's national regulations.

10 Troubleshooting

O Check the connections, operating voltage of the system part, and working
pressure if malfunctions occur.
If this is the cause of the malfunction, proceed as follows:
1. Ensure that the cylinder is not under pressure and disconnect the system part
from the supply voltage.
2. Remedy the malfunction.
3. Restart the system part and cylinder.
Additional help for malfunctions can be found in the following table:
Malfunction Possible cause
Drop in performance Cylinder defective
during continuous
operation
Cylinder does not Supply lines too long
achieve performance/
Tubing diameter
compressed air supply
dimensioned too
insufficient
small
Possible throttle
points in the system
CAUTION
CAUTION
Remedy
Replace cylinder
Shorten supply lines
Select a larger tubing
diameter
Remove throttle points
(mounted fittings/
elbow fittings)
7