Balluff BAE SA-OH-059-YI-DP02, Руководство пользователя

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8
Menu structure (continued)
8.2.3 Teach Process
For a successful teach-in as well to directly set a setpoint,
the following conditions must be met:
– The setpoint that is to be taught must be in the validity
range of the measurement value signal.
Additionally in Two-Point and Window Mode:
– Setpoint 1 must be greater than setpoint 2.
– The distance between the setpoints must be greater
than or equal to the minimum hysteresis.
Due to the requirements listed above, it may be
necessary to vary the order of the setpoints for a
successful teach-in.
An active teach process is indicated by illumination of the
red LED. If the red LED flashes, the currently pending
measurement value is outside of the validity range (IO-Link
process) or a manual teach was not possible.
Single Value Teach
With Single-Value Teach, the switching point (setpoint) is
defined via a teach point. Moreover, this is a static process,
i.e., the measurement value is constant during the teach
phase. The teach process is performed independently for
each switching point in Two-Point Mode or Window Mode.
Fig. 8-16:
High
SP1
Low
Workflow:
1. Teach SP1
Measurement value
Switching output
Single Value Teach in Single Point Mode
Fig. 8-17:
High
SP1 SP2
Low
Workflow:
1. Teach SP2
2. Teach SP1
Measurement value
Switching output
Single Value Teach in Two Point Mode
Threshold Tracking Mode
In this mode, the switching threshold is automatically
tracked, but only if the switching threshold has not been
undercut or exceeded. This compensates for slow chan-
ges in the signal value, e.g. due to dust accumulation on
the optics or temperature drift, but there is no dynamic
behavior. The switching threshold is below or above the
average signal value.
Fig. 8-14:
t
Threshold Hi
Threshold Lo
Out
Signal
Switching output
Switchpoint Mode Threshold Tracking Mode Negative
t
Threshold Lo
Threshold Hi
Out
Signal
Switching output
Fig. 8-15: Switchpoint Mode Threshold Tracking Mode Positive
BAE SA-OH-059-YI-----
Photoelectric Sensors