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5 Description of Functions
5.1 Monitoring the System Vacuum and Defining Switching Points
The product has integrated sensors for measuring the vacuum.
The current vacuum value and current pressure values can be retrieved via IO-Link.
Two independent switching points (SP1 and SP2) can be set. Each switching point has an activation point
and a corresponding hysteresis (RP1 and RP2). The system vacuum is constantly compared to the set values
for the switching points during operation.
The switching points are set via IO-Link.
A "Status" LED displays when the switching point for SP2 is reached
The set values for SP2 must be lower than the values for SP1. The exact conditions for the settings are pro-
vided in the data dictionary.
The control function uses switching points SP1 and RP1 for regulation. Switching point SP3 "(> See ch.
part detached)" cannot be adjusted. It is fixed at 20 mbar. Signal SP3 is issued when the vacuum reaches <
20 mbar (provided that the vacuum has already reached SP2 once). By issuing this signal, the ejector mod-
ule tells the control that the part has been deposited successfully. The signal is reset by issuing a new suc-
tion command.
Parameter
SP1
RP1
SP2
RP2
SP3
System vacuum evaluation:
Once the system vacuum reaches the value for SP2, the following responses are triggered:
•
The process data bit for SP2 is set (see Data Dictionary).
•
The state of LED 2 changes from a blue light to a green light (if there is no
active error or warning (condition monitoring))
•
In SIO mode, the SIO output OUT2 (part present) is activated according to
the PNP/NPN configuration in parameter "Signal type: SIO outputs of the
device" parameter 0x0049
Once the system vacuum reaches the value for SP1, the following responses are triggered:
•
When the control function is activated, vacuum generation is interrupted
•
The process data bit for SP1 is set (see Data Dictionary).
EN-US · 30.30.01.03601 · 00 · 01/23
Description
Vacuum control value
Vacuum reset point
Switching point for part present
Reset point for part present
Part deposited (vacuum < 20 mbar)
5 Description of Functions
(> See ch. 3.5 LED Display, p.
13).
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