Functions of the Compact Terminal and the Ejectors
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To protect the ejector and increase its service life, the ejector automatically deactivates the air saving
function and switches to continuous suction if the switching frequency > 6/3 s (more than 6 switching op-
erations within 3 seconds). In this case the ejector remains in the Suction state.
It also issues and warning and sets the corresponding condition monitoring bit.
Diagram of Valve Switching Frequency
Vacuum
[mbar]
Time [s]
Suction ON
Monitor Evacuation Time
If the measured evacuation time t1 (from H2 to H1) exceeds the specified value, the “Evacuation time
longer than t-1” condition monitoring warning is triggered and the system status light switches to yellow.
Monitor Leakage
In control mode, the loss of vacuum within a certain period is monitored (mbar/s). There are two possible
statuses.
Leakage L < permitted value
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