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General Description of Functions
1. Press the
button to select the parameter to be changed:
Press once => first parameter "Vacuum limit value H1"
Press twice => second parameter "Vacuum limit value H2"
Press three times => third parameter "Blow off time"
ð The LED for the selected parameter flashes.
2. Change the selected parameter by pressing the
ð The bar display LED increases or decreases.
3. Press the
button to leave adjustment mode.
ð The value will flash briefly to indicate that a changed parameter is being applied.
5.5 Locking the Keypad
4 Pressing the
4 Pressing both keys again unlocks the keypad.
5.6 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 LED H1
•
The limit value LED H2
•
The signal output H2
5.7 Signal Output
The ejector has a signal output.
The signal output is a normally open (NO) contact and cannot be changed.
The signal output is switched on or off when the system vacuum is higher or lower than the relevant limit
value.
5.8 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 limit value H1 is reached. If leakage causes the vacuum to
fall below the hysteresis limit value (H1-h1), vacuum generation resumes.
The control function can be deactivated by setting the threshold value for H1 to "Max.".
5.9 Depositing the Workpiece/Part (Blowing Off)
In blow off mode, the vacuum circuit of the ejector is supplied with compressed air. This ensures that the
vacuum drops quickly, allowing the workpiece to be deposited quickly.
The ejector provides two blow off modes for selection:
•
Externally controlled blow off: The "blow off" valve is controlled directly by the "blow off" signal
input. The ejector switches to blow off mode for as long as the signal is present.
•
Internally time-controlled blow off: The "blow off" valve is automatically activated for the config-
ured time period as soon as the ejector leaves "suction" mode. This function makes it possible to
save an output on the controller.
4 The time-controlled blow off is activated by setting a value greater than zero for the blow off time.
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and
keys at the same time locks the keys.
or
button.
EN-US · 30.30.01.02636 · 00 · 01/21
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