Burkert 6524 Instructions De Service page 18

I , C
NSTALLATION OMMISSIONING AND
Measures to be taken before putting into service
Check all connections, voltages and the operational pressure!
Ensure that the max. operational conditions (see rating plate) will not be exceeded!
Unlock the manual actuator for electrical operation!
Faults
Fault Possible cause
Valves does Operational voltage too low or
not switch not present
Manual override not in neutral
position
Compressed air supply not
available or insufficient
Valves switch Compressed air supply not
with a delay, or available or insufficient
exhaust
through the
venting ports
Valves are not in the starting
position (without current)
during pressure build-up
Insufficient venting of the
exhaust channels due to
silencers that are too small or
are soiled (backpressure)
Impurities or foreign matter in
the pilot valve or main valve
16 - 6524/6525
M
AINTENANCE
Correction
Check the electrical supply connections.
Ensure that the electrical power supply is the same as
that specified on the rating plate.
Set the manual override to the zero position.
Carry out the dimensioning of the compressed air
connection with volumes as large as possible (including
that of upstream pressure regulators, service units, cut-
off valves etc.).
Carry out the dimensioning of the compressed air
connection with volumes as large as possible (including
that of upstream pressure regulators, service units, cut-
off valves etc.).
Apply pressure to the valve block before you switch the
valves!
Use silencers or expansion channels with sufficient
dimensions.
Clean soiled silencers.
Blast through the exhaust channels with pulsed
compressed air, to blow out impurities.
Install a new pilot or main valve if these measures bring
no improvement.