Setting The Position Measuring System (Teach-In) - Burkert 8681 Operating Instructions Manual

16.1.

Setting the position measuring system (Teach-In)

DANGER!
Danger of explosion in explosive atmosphere (only in the event of a fault as zone 2)!
• Opening the hood or the housing in an explosive atmosphere is only allowed in a not energized state!
Example procedure (for 3 valve positions):
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Open the housing following the instructions in Chapter "8. Opening and Closing the Housing".
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Supply electrical power so that the position measuring system and the LED display can function.
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Position the process valve at the lower switching position.
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Depress the lower Teach-In button (T1) for approx. 1.5 seconds:
The LED corresponding to this position will flash quickly 3 times during the teaching phase.
When this position has been saved, the corresponding LED will remain continuously lit until the position of the
piston is changed.
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Afterwards, position the process valve at the upper switching position to be recorded.
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Depress the upper Teach-In button (T2) for approx. 1.5 seconds:
The LED corresponding to this position will flash quickly 3 times during the teaching phase.
When this position has been saved, the corresponding LED will remain continuously lit until the position of the
piston is changed.
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The process valve can now be moved into a third, defined position.
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Depress the middle Teach-In button (T3) for approx. 1.5 seconds:
The LED corresponding to this position will flash quickly 3 times during the teaching phase.
When this position has been saved, the corresponding LED will flash continuously until the position of the
piston is changed.
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If required, return control head and system to normal state (switching position, power supply).
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Close the housing following the instructions in Chapter "8. Opening and Closing the Housing".
If the piston or the target are located outside the measuring area during the teaching phase, LED 3 will
flash in the defined fault color.
If the piston or target are outside of the measuring area, no positions signals will report back, i.e. no LEDs
will be lit.
The Teach-In buttons can be assigned to any of the positions of the piston, i.e. T1 does not have to corre-
spond to the lower piston position, etc.
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English
Control Head Type 8681
PositionMeasuringSystem