Description of Functions
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EN-US · 30.30.01.01963 · 00 · 05/19
Activating and Deactivating Manual Blow-off
ü
The ejector is in “manual mode”.
4
Press and hold the
button.
ð
The blow off LED B lights up.
ð
The ejector blows off as long as the button is pressed.
4
Release the
button to end the blow off.
ð
The blow off process is deactivated.
ð
The blow off LED B is no longer lit.
6.3 Monitoring the system vacuum and defining limit values
The ejector has integrated sensors for measuring the vacuum.
The current vacuum level is shown on the display.
The limit values are set in the main menu using the parameters [
5P1
], [
rP1
], [
5P2
] and [
rP2
].
Limit values SP1 and rP1 are used by the control function to control the vacuum.
Overview of the limit values:
Limit value parameter
Description
SP1
Vacuum switching point
rP1
Vacuum reset point
SP2
Activation value of “Parts control” signal output
rP2
Deactivation value of “Parts control” signal output
6.4 Calibrating the sensor
Since the sensor integrated in the ejector is subject to variation due to the manufacturing process, we rec-
ommend calibrating the sensor after installation. In order to calibrate the ejector, the system’s pneumatic
circuits must be open to the atmosphere.
A zero offset is only possible in the range of ±3 percent of the end value of the measuring range.
If the permissible limit of ±3% is exceeded, error code [
E03
] will appear on the display.
The zero-point adjustment function is executed in the main menu using the parameter [
CAL
].
1. To adjust the zero point, press the
button several times until [
CAL
] appears on the display.
2. Confirm using the
button.
3. Use the
button to choose between [
No
] and [
YE5
] (calibrate the vacuum sensor).
4. Confirm using the
button.
ð
The sensor is calibrated.
6.5 Control functions
The ejector allows you to conserve compressed air or prevent a too powerful vacuum from being gener-
ated. Vacuum generation is interrupted once the configured switching point SP1 is reached. If leakage
causes the vacuum to fall below the reset point rP1, vacuum generation resumes.
The
permitted leakage
can be set in mbar/s using the [
-L-
] parameter in the Extended Functions menu.
The leakage is measured from the point when the control function interrupts suction after reaching
switching point SP1.
