Balluff BAE SA-OH-059-YI-DP02, User Manual

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8
Menu structure (continued)
8.2.2 Switchpoint Mode
Single Point Mode
In Single Point Mode, only one switching point (setpoint) is
defined.
Switching behavior:
– Measurement value ≥ switching point: output active
– Measurement value ≤ switching point minus a defined
hysteresis: output inactive
Fig. 8-9: Switchpoint Mode
High
SP1 SP1-Hys
Low
Measurement value
Switching output
Single Point Mode
Two-Point Mode
In Two-Point Mode, two switching points (setpoints) are
defined.
Switching behavior:
– Measurement value ≥ switching point 1: output active
– Measurement value ≤ switching point 2: output inactive
Fig. 8-10:
High
SP1 SP2
Low
Measurement value
Switching output
Switchpoint Mode Two Point Mode
Window Mode
In Window Mode, two switching points (setpoints) are
defined.
Switching behavior:
– If the output is inactive and the measurement value is
greater than or equal to switching point 2 + 50% of the
set hysteresis and the measurement value is less than
or equal to switching point 1 – 50% of the set hystere-
sis, the output switches to active.
– If the output is active and the measurement value is
less than or equal to switching point 2 – 50% of the set
hysteresis or the measurement value is greater than or
equal to switching point 1 + 50% of the set hysteresis,
the output switches to inactive.
Fig. 8-11:
High
SP1 SP2
Hyst. Hyst.
Low
Measurement value
Switching output
Switchpoint Mode Window Mode
Dynamic Mode
In this mode a dynamic signal evaluation is performed,
allowing slow changes of the signal value, e.g. due to dust
accumulation on the optics or temperature drift, to be
compensated for. The switching threshold is below or
above the average signal value. Dynamic behavior means
that switching only takes place in the event of rapid signal
changes and that the output becomes inactive again if the
signal remains constant thereafter.
Fig. 8-12:
t
Out
Threshold Hi
Signal
Threshold Lo
Switching output
Switchpoint Mode Dynamic Mode Negative
t
Out
Threshold Hi
Signal
Threshold Lo
Switching output
Fig. 8-13 Switchpoint Mode Dynamic Mode Positive
BAE SA-OH-059-YI-----
Photoelectric Sensors