S/hart, profibus pa, o – Burkert Type 8635 User Manual
Page 50

48 - 8635
I
NDUCTIVE PROXIMITY SWITCHES
(S/HART, PROFIBUS PA, O
PTION
)
Description of the inductive proximity switches
Configuration of the adjusting wheels (option)
Any actuator position can be registered with an inductive proximity switch. Depending on the version of the
device, one or two inductive proximity switches are installed. The output signals can be processed with
switching amplifiers to „NAMUR“ to EN 50227 or VDE 0660 T 212.
As soon as the control flags installed in the SIDE Control enter the fork-shaped inductive proximity switch,
the current changes.
Proximity switch operated:
current
≤1.2 mA
Proximity switch not operated:
current
≥ 2.1 mA
The control flags are designed such that the signal is then maintained until the end position is reached.
Even when the device is equipped with only one proximity switch, both adjusting wheels are
installed. In this case only SR1 is active.
NOTE
SR1
SR2
inductive
proximity switch
control flag
adjusting
wheel
Segment of circle 1
70°
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