Hysteresis Settings; Temperature Alarm (Ta); External Input - CARLO GAVAZZI CA30CAF BPA2IO Serie Manual De Instrucciones

2.4.1.3. Hysteresis Settings

In SSC1 and SSC2 - single point mode and in windows mode the hysteresis can be set between 1 and
100 % of the actual switching value. Standard settings depend on the sensing type:
CA18CAF...
CA18CAN...
CA30CAF...
CA30CAN...
(SP2 + Hysteresis < SP1) & (SP1 + hysteresis < Sensing range upper limit).
Information
An extended hysteresis is generally used to solve vibration or EMC issues in the application.
2.4.1.4. Dust alarm 1 and Dust alarm 2
The safe limit between when the sensing output is switching and the value at where the sensor can
detect safely even with a slightly build up of dust can be set.
See 2.6.5 Safe limits.

2.4.1.5. Temperature alarm (TA)

The sensor constantly monitors the internal temperature in the front part of the sensor. Using the
temperature alarm setting it is possible to get an alarm from the sensor if temperature thresholds are
exceeded. See §2.6.4
The temperature alarm has two separate values, one for setting maximum temperature and one for
setting minimum temperature.
It is possible to read the temperature of the sensor via the acyclic IO-Link parameter data.
NOTE!
The temperature measured by the sensor will always be higher than the ambient temperature, due to
internal heating.
The difference between ambient temperature and internal temperature is influenced by how the sensor
is installed in the application. If the sensor is installed in a metal bracket the difference will be lower
than if the sensor is mounted in a plastic one.

2.4.1.6. External input

The output 2 (SO2) can be configures as an external input allowing external signals to be feed into
the sensor, this can be from a second sensor or from a PLC or directly from machine output.
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Rev.00 - 06.2018 | CA18/CA30 Capacitve sensors with IO-Link interface | © 2018 | CARLO GAVAZZI Industri
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