Description of Functions
EN-US · 30.30.01.01961 · 00 · 06/19
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Leakage L < permitted value -L-
Vacuum
Time
SP1
rP1
•
The vacuum continues to decrease until it
reaches the reset point rP1
•
The ejector begins to suck again (normal
control mode)
Leakage L > permitted value -L-
Vacuum
Time
SP1
rP1
•
The ejector immediately begins to correct
it
•
A condition monitoring warning is acti-
vated
•
The system status indicator light turns
yellow
The specified value for the max. permitted leakage -L- is set in the EF menu using the parameter [
-L-
] or
using IO-Link [0x006C]. The maximum leakage that can be set is 999 mbar/second.
Control Threshold Monitoring
If the switching point SP1 is never reached during the suction cycle, the “SP1 not reached” condition mon-
itoring warning is triggered and the system status light switches to yellow.
This warning is available at the end of the current suction phase and remains active until the next suction
cycle.
Monitor Dynamic Pressure
If possible, a dynamic pressure measurement is taken at the start of every suction cycle (vacuum during
unobstructed suction). The result of this measurement is compared to the limit values set for SP1 and SP2.
If the dynamic pressure is greater than (SP2 – rP2) but less than SP1, the corresponding condition monitor-
ing warning is triggered and the status light switches to yellow.
Monitoring the Supply Voltages
The ejector is not a voltage meter! However, the measured values and the system responses
derived from them provide a helpful diagnostics tool for condition monitoring.
The ejector measures the supply voltages U
S
. The measured value can be read from the parameter data.
If the voltages are outside the valid range, the following status messages change:
•
Device status
•
Condition monitoring parameter
•
An IO-Link event is generated
