4. Commissioning
4-21
Festo P.BE-MPA-EN en 1108e
Operating status of the
proportional pressure
regulator
Possible ca use Remedy
Proportional pressure regulator
does not react
Supply voltage not applied,
POWER LED or display does not
light up.
Check the 24 V DC supply
voltage
No supply pressure Switch on supply pressure
Setpoint value reached Modify setpoint value
Proportional pressure regulator
defective
SendthedevicetoFestofor
repairs.
Flow too low Restriction of the flow cross
section due to connection
design (swivel fittings).
Use different type of
connection.
Pressure increase too slow Large cylinder volume and long
tubing
Selec t diff erent parameter
record
Pressure constant despite
modified setpoint value
specification
Too little supply pressure p1 Increase supply pressure
Tab. 4/10: Functional impairment of the proportional pressure regulator
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