ARI Armaturen ARI-PACO 0,85kN EN - Manual (Page 28)

Page 28 0040506000 1811
Operating and installation instructions
Electric thrust actuator ARI-PACO 0,85 kN
6.2.7 Overload recognition, ARI-PACO 0,85 Y
Long lasting, impermissibly high pressure differences in the valve lead can lead to
overloading which can affect the life span of an actuating drive.
Impermissibly high pressure differences can be recognized immediately in the windows of
the transmission cover beneath the housing upon commissioning.
If the transmission gear wheel is displaced from the middle window position upwards or
downwards, then the pressure difference in the valve is too high.
6.2.8 Zero-Crossing, ARI-PACO 0,85 Y
The actuating signal input 0(2)..10V is read in the zero-crossing of the 24 V voltage,
because then the voltage losses on a common earth lead are minimized. This results in a
higher precision, and it is insured that lead resistances up to approx. 15 Ohm do not form
disturbance influences such as oscillations.
7.0 Care and maintenance
The linear actuator requires little maintenance, so that no maintenance is required at fixed
time intervals.
Depending on conditions of use, the maintenance and the repair intervals should be
determined by the operator.
The linear actuator may not be cleaned with high-pressure devices or with solvents of
cleaning materials that are aggressive, harmful to health or easily flammable.
During or after cleaning, the sealing elements of the linear actuator should be carefully
examined.
If there is any sign of a lubricant leak or contamination, the sealing elements should be
repaired.
8.0 Troubleshooting
In the event of malfunction or faulty operating performance check that the installation and
adjustment work has been carried out and completed in accordance with these Operating
Instructions.
If malfunctions cannot be eliminate with the help of the following table
“9.0 Troubleshooting table”, the supplier or manufacturer should be consulted.
Fig. 38
-
ATTENTION !
- It is essential that the safety regulations are observed when identifying faults.