Voith 22000000700, Instruction Manual

Page: 15 / 25

Instruction Manual
Voith Turbo Way Valve WSR-D16214
2005 / 03 aie Voith Turbo GmbH & Co. KG Page: 15 / 24
9183626018945 en D – 74564 Crailsheim Version: 2.0
How to de-aerate the hydraulic system
•
Enter setpoint w = 4...20 mA and check the reaction of the consumer connected to
output "A" and "B.
•
Run the way vale until it has reached operating temperature and check the supply
pressure.
•
Enter setpoint w = 12 mA.
Check the deviation between setpoint and actual value remote indication and, if
necessary, correct the hydraulic center with parameter FM.
See Chapter 6.2.1.
•
Vary the setpoint w from 4 to 20 mA. Check the stroke setting and correct it by
potentiometers X0 and X1, if necessary.
See Chapter 6.2.2.
Do not stay in the dangerous zone of the cylinder during the de-aeration process if no
protective device is installed!
If with the piston to be positioned a valve is adjusted, for instance, on connection it has
to be ensured that in 0% position the valve stop and not the inner stop of the piston is
started in the actuator.
•
Preset setpoint step-change in closing direction (e.g.: 18
→
6 mA).
Check the step-response and, if necessary, optimize
with potentiometer KP.
See Chapter 6.2.3.
During the test run, check all hydraulic connections for leaks. In case of leaks,
immediately switch off the hydraulic supply and remedy the leakage.
6.2 Parameter setting
Due to unintentional maladjustment of the parameters or changed operating
conditions, one or both parameters may have to be readjusted. We recommend
documenting the adjustment of the parameters as well as the set values.
The parameters are adjusted by means of potentiometers X0, X1, FM, KP and SF.
If the cover is removed, explosion protection is no longer guaranteed. Therefore, check
that there is no explosive atmosphere or may form as long as the end cover is not
mounted and secured by the screws.
The cylindrical part of the end cover and the housing bore form part of the flameproof
enclosure for explosion protection. The cylindrical surface of the end cover and the
associated surface of the housing bore must not be damaged. The corrosion protection
of these surfaces needs to remain complete.