GEA T.VIS M-15, Руководство по эксплуатации

Страница: 69 / 130

69
Setting into Operation
Test Procedure for Tuchenhagen PMO Valves Type M/2.0
Test Procedure 2
Test procedure 2 is carried out by the Regulatory Inspector to verify that the system
interlock programmed in the PLC is working correctly by manually actuating the valve
disk that shuts off the pipe of the valve which currently is not part of the cleaning circuit.
If interlocking is implemented correctly, the CIP supply pump or the source generating
the cleaning solution pressure must switch off automatically.
CAUTION
Please note that test procedure 2 has to be performed with great care. There is a
danger of cleaning solution mixing with product if the control system interlocks are not
working correctly. It must be ensured for the duration of the test that no product is
present in the valve housing that is not part of the active CIP circuit!
Step 1
Make sure that the valve to be tested is part of an active CIP circuit and determine which
of the two housings belongs to this active cleaning program.
Step 2
Carry out the following steps:
1.
If the upper housing is part of the active CIP circuit:
Activate lifting of the lower seat by activating solenoid valve Y2 via the PLC.
2.
If the lower housing is part of the active CIP circuit:
Activate lifting of the upper seat by activating solenoid valve Y3 via the PLC.

Done
Step 3
If the programmed control system interlock is working correctly, the CIP supply pump
will be deactivated. If the CIP supply pump or the source generating the cleaning solu-
tion pressure is not deactivated, the plant should be shut down immediately for an inves-
tigation of the control system interlocking program.