Bürkert 8696, Operating Instructions Manual

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Operation and function
14.2.7
SIG.ERROR
-
Configuration of cable break detection (only for variant without
fieldbus communication)
The cable break detection function ( SIG.ERROR) is used to detect a fault on the input signal.
Cable break detection can be selected for a 4 – 20 mA signal only:
Fault if input signal ≤ 3.5 mA (± 0.5 % of final value, hysteresis 0.5 % of final value)
If 0 – 20 mA is selected, cable break detection cannot be selected.
A signal error is indicated on the device by the LED 1 for activated cable break detection (error or out of
spezification).
Safety position for activated cable break detection :
Active safe position function ( SAFEPOS)
If a fault is detected, the actuator moves to the position set under safe position function.
Inactive safe position function ( SAFEPOS)
If a fault is detected, the actuator moves to the end position which it would assume in the isolated state.
14.2.8
BINARY.IN
(variant) -
Configuration of the digital input (only for variant without
fieldbus communication)
The following settings can be implemented:
•
Approach the safety position
•
Starting the function X.TUNE
Safety position
Digital input = 1 → Approach the safety position.
Active safety position function ( SAFEPOS)
The actuator moves to the position set under safe position function.
Inactive safety position function ( SAFEPOS)
The actuator moves to the end position which it would assume in the isolated state.
Starting the function X.TUNE
Digital input = 1 → Starting X.TUNE .
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Type 8696, REV.2