Festo OVEM, Operating Instructions Manual

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OVEM
Festo – OVEM – 1407c English 89
5. Set the desired security code with the UP/DOWN keys. (OFF = no protection).
Store the security code where it can be found again. If you forget the security code
è
chapter 7.3, page 94.
Note
Monitoring of the evacuation and air supply times is deactivated in the factory.
6. Press the EDIT button to confirm the set value.
è
[msec], [SP], [max], [_|¯] flash.
7. Set the maximum evacuation time with the UP/DOWN keys. (OFF: monitoring of evacuation time is
deactivated)
8. Press the EDIT button to confirm the set value.
è
[msec], [SP], [max], [¯|_] flash
9. Set the maximum air supply time with the UP/DOWN keys. (OFF: monitoring of air supply time is
deactivated)
10.Press the EDIT button to confirm the set value.
è
The vacuum suction nozzle is in the RUN mode.
6.4 TEACH mode
In the TEACH mode, the switching variable (switching point or switching window) with and without air
saving function as well as the air supply and evacuation times can be taught.
Note
Before teaching, make sure that the desired switching function (window or threshold
comparator) and the desired hysteresis are set in the EDIT mode (
è
chapter 6.3,
page 84).
Threshold value comparator Window comparator
The (taught) switching point is derived from the
average value of both teach points. Calculation
equation: SP = 1/2 (TP1 + TP2) If both teach
points are equal: SP = TP1 = TP2.
The taught switching window results from: SP
min
= smaller teach point (TP1 or TP2); SP
max
= lar­
ger teach point (TP1 or TP2).
Position of the teach points (example) Position of the teach points (example)
Tab. 11 Set switch variable