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Vacuum
[mbar]
H1-h1
The specified value for the max. permitted evacuation time t1 can be set using the IO-Link ("Permissible
evacuation time" parameter) [0x006B]. Setting the value to "0" (= off) deactivates monitoring. The maxi-
mum permitted evacuation time setting is 9.99 s.
Measuring the Evacuation Time t0 and t1
Measuring the evacuation time t0:
The time is measured (in ms) from the beginning of the suction cycle to the time when the limit value H2
is reached ("Evacuation time t0" parameter [0x0094]).
Measuring the evacuation time t1:
The interval between reaching the limit values H2 and H1 is measured (in ms) ("Evacuation time t1" pa-
rameter [0x0095]).
Leakage Monitoring and Evaluation
The leakage is measured and monitored in control mode. The measurement is performed using a calcula-
tion based on the pump control values (speed and duration) when readjusting to the setpoint H1. The cal-
culated value can be read as a volume flow rate using the "Leakage rate" parameter [0x00A0] or alterna-
tively using the process data (EPC-Select) in ml/min.
Evaluation of the leakage level differentiates between two statuses:
Leakage L < permitted value -L-
If the leakage L is less than the set value "Permissible leakage rate"
•
The condition monitoring warning is not activated
•
There is no effect on the system status light and the display on the LED ring
Leakage L > permitted value -L-
If the leakage L is greater than the set value "Permissible leakage rate"
•
The condition monitoring warning is activated
•
The system status light switches to yellow and a warning (orange) is displayed on the LED ring
EN-US · 30.30.01.02196 · 01 · 11/20
Start suction cycle
Description of Functions
Time [s]
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