Festo VTOP, Руководство по эксплуатации

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22 Festo — VTOP — 2021-07
Maintenance
9 Operation
9.1 Setting the output pressure
The output pressure of the filter regulator PCRI is set using the rotary knob. The rotary knob must not
be removed.
1. Pull the rotary knob upwards.
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The rotary knob is unlocked.
2. Screw down the rotary knob fully anti-clockwise (–).
3. Pressurise the valve terminal VTOP slowly.
4. Turn the rotary knob clockwise (+) until the desired output pressure is reached (1 bar/revolution).
Comply with the pressure regulation range
è
13 Technical data.
5. Press the rotary knob downwards.
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The rotary knob is locked.
9.2 Adjusting volume boost
The volume boost or response sensitivity of the compressed air flow rate specified by the positioner is
adjusted separately for duct 2 or duct 4 at the VOGM volume amplifier using a flow control screw.
Initialisation of the volume booster VOGM
è 8 Commissioning.
1. Unscrew the blanking plug.
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The flow control screw is accessible.
2. Adjust the volume boost or sensitivity at the flow control screw with a suitable slotted screwdriver.
Observe the ratio of compressed air flow rate to flow control valve setting è Fig. 23.
–
Increase: turn the flow control screw clockwise (+).
–
Reduce: turn the flow control screw anti-clockwise (–).
3. Screw the blanking plug back in.
10 Maintenance
10.1 Changing the filter
The filter at the filter regulator PCRI must be replaced when the flow rate is reduced regardless of the
unchanged pressure setting.
1. Switch off compressed air supply.
2. Unscrew and remove the filter cover with a suitable tool.
3. Replace the filter cartridge.
4. Check that the seal is seated correctly on the filter cover.
5. Replace the filter cover and tighten it. Tightening torque: 20 Nm ± 10%
10.2 Cleaning
Clean the product with a non-abrasive cleaning agent.