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Operation
9
Operation
The mechanical system of the product is not tested when it is pressurised.
•
Perform a forced switch-off at least once a month if the process-related switching frequency is
lower.
When designing the system, take into account the maximum switching frequency and the life rating of
the product to ensure optimum availability è 14 Technical data.
10
Maintenance
10.1
Maintenance work
A dirty silencer can extend the time needed for exhausting the system and thus restrict the safety func-
tion.
•
Check the silencer regularly and replace if necessary.
10.2
Cleaning
1. Switch off energy sources:
–
Operating voltage
–
Compressed air
2. Clean the outside of the product as required. Approved cleaning agents are soap solutions (max.
+50 °C), petroleum ether and all non-abrasive cleaning agents.
11
Malfunctions
11.1
Diagnostics
LED display
LED AS-i
Diagnostics
Off
No AS-i voltage available
Illuminated green
AS-i interface voltage applied, no error
Illuminated red
AS-i address not set (equals 0)
Illuminated red
Failure of bus communication, e. g. watchdog expired
Flashes green/red
Error in exhaust valve
Tab. 10 Diagnostics LED AS-i
Festo — MS6(N)-SV-...-E-ASIS — 2019-05a
17
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