SCHUNK MV 15, Assembly And Operating Manual

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Troubleshooting
16 01.03|MV 15 - 30|en
Troubleshooting
Valve does not open when switched on
Possible cause Solution(s)
Compressed air supply is too low, micro
valve only opens with pressure support
depending on the design Increase the supply pressure to the mini-
mum operating pressure,
(

5, Page 9) .
Micro valve not screwed in as far as possible Check the thread of the swivel fitting,
(

6.4, Page 12) .
Screw in the valve cartridge completely.
Incorrect polarity (only possible with micro
valve with a valve cover and recovery diode) Make the correct connection assignment,
(

6.2, Page 11) .
Supply voltage too low Check the supply voltage, see catalog data
sheet.
Valve is "not tight" when switched off
Possible cause Solution(s)
Connection with screws or valve cartridge
not tightened correctly Tighten connections with screws of the indi-
vidual components,
(

6.4, Page 12) .
Foreign object on the sealing face or sealing
contour Clean the sealing face and sealing contour,
(

8, Page 17) .
Observe the incompatibility of the sealing
material,
(

5, Page 9) .
Supply pressure too high Reduce the supply pressure to the maximum
operating pressure,
(

5, Page 9) .
7
7.1
7.2