GEA VARIVENT 24/7 PMO, Оригинальная инструкция по эксплуатации

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Electrical Connections and Commissioning
Test Procedures for Tuchenhagen PMO Valve Type M-C/2.O
Test procedure 2
The
methology
behind test procedure 2 is to allow the Regulatory Inspector to manually
force open the seat opposite to the valve housing which is part of an active CIP circuit to
ensure that proper control system interlocking is in place. In this case, the CIP supply
pump or the source of the CIP solution pressure should be deactivated.
CAUTION
Please note that great care should be taken with test procedure 2 as there is danger of
CIP mixing with product if the proper control system interlocks are not in place. Ensure
that product is NOT present in the valve housing opposite to the housing which is part of
the active CIP circuit for the duration of this test!
Step 1
Ensure that the valve being tested is part of an active CIP circuit program and determine
which housing (upper or lower) of the valve is part of that active CIP circuit.
Step 2
Carry out the following steps:
1.
If the upper housing is part of the active CIP circuit
Activate the lower seat lift by activating solenoid Y2 from the PLC
2.
If the lower housing is part of the active CIP circuit
Activate the upper seat lift by activating solenoid Y3 from the PLC

Done
Step 3
If the control system is properly interlocked, the CIP supply pump or the source of the
CIP solution pressure will be deactivated. If the CIP supply pump or the source of the
CIP solution pressure does NOT deactivate, the system should be shut down immedi-
ately for an investigation of the control system interlocking software.
Commissioning
Before starting commissioning observe the following:
• Make sure that there are no foreign materials in the system.
• Actuate the valve once by applying compressed air.
• Clean the pipe system prior to the first product run.
• During commissioning, regularly check all sealing points for leaks. Replace defective
seals.