Wgm-B; Switch-On Procedure; Parameter Settings; Factory Setting - Bosch Rexroth WGM Operating Instructions Manual

Oil humidity sensor
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5.2 WGM-B

This operation explanation refers to sensor options without display units

5.2.1 Switch-on procedure

When the device is connected to the supply voltage, it switches on immediately.
With IO-Link, the sensor is in SIO mode if the master is not present. In SIO mode,
the sensor operates like a normal PNP switching output.

5.2.2 Parameter settings

The parameters can be set as switching point, switch-back point or temperature unit
via the IO-Link interface.

5.2.3 Factory setting

(can only be restored via IO-Link)

Switching outputs

Switching point
switch-back point
Delay switching point/
switch-back point
Characteristic
5.2.4 Switching outputs
The sensor is equipped with a switching output which is assigned to the humidity.
The threshold value is pre-set to 80%. The switching function is designed as a
normally open contact. This switching output can be configured ex works or via the
digital interface.
For information on the functionality, please refer to chapter Switching outputs
[> page 22].

5.2.5 Analog outputs

The sensor version is equipped with up to two 4-20 mA analog outputs. The analog
outputs are available for relative humidity and temperature. The scaling is pre-set
and can be configured ex works or via the digital interface. By default, the relative
humidity is represented at the analog output from 0% to 100%. The temperature is
represented at the analog output from -20 °C to 120 °C.
80% / 75%
Error message
0 / 0
Temperature unit
Hysteresis as
Assignment switching
normally closed
output
contact (Hnc)
Operation
Basic settings
Inactive
°C
Humidity
RE 51550-B/09.2019, Bosch Rexroth AG
33/46

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