General Description of Functions
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Activating the Operating Mode
Press and hold the
or
button for more than 3 seconds. An
M
appears on the display while you do
so.
The current process state is retained.
Manual suction
The
button activates “suction” on the ejector.
Press the
or
button to exit the “suction” operating state again.
Manual blow off
The
button activates “blow off” on the ejector for as long as the button is pressed.
Deactivating the Operating Mode
Using the
button or through an external state change by signal inputs.
The valve protection function is not active in manual mode.
7.3.3 Setup Mode
Setting mode is used for locating and eliminating leakages in the vacuum circuit. Since the valve protec-
tion function is deactivated and the control is not deactivated, even at increased control frequencies.
In this operating mode, the “H1” and “H2” LEDs both flash.
Setting Mode Activated and Deactivated
4
Set the corresponding value using bit 2 in the output process data byte (PDO).
A change to bit 0 or bit 1 (suction or blow off) in the PDO also causes the ejector to exit setting mode.
This function is only available in IO-Link mode.
7.4 Vacuum Monitoring
The ejector has an integrated sensor for monitoring the current system vacuum. The vacuum level pro-
vides information about the process and has an effect on the following signals and parameters:
•
The limit value H1
•
The limit value H2
•
The signal output H2
•
The process data bit H1
•
The process data bit H2
The limit values and associated hysteresis values are adjusted in the menu items
x-1
,
h-1
,
x-2
and
h-2
in the main menu or via IO-Link.
7.5 Control Function
The ejector allows you to conserve compressed air or prevent an excessive vacuum from being generated.
Vacuum generation is interrupted when the set vacuum limit value H1 is reached. If leakage causes the
vacuum to fall below the hysteresis limit value (H1-h1), vacuum generation resumes.
The operating modes for the control function can be set under the
[
ctr
]
menu item in the configuration
menu or via IO-Link.
