X90 mobile modules
X90 mobile system User's manual V 1.20 - Translation of the original manual
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5.4.1.3.2 Firmware update time
Due to the large size of the firmware, the firmware update takes some time.
The following firmware update times can be expected depending on the configured bus cycle time:
Bus cycle time
Update time
400
μ
s
Approx. 5 min
2 ms
Approx. 25 min
5.4.1.3.3 Input circuit diagram
AI +
AI -
IEPE power supply on/off
Raw value
A/D
converter
24-bit
5 mA current source
Open circuit monitoring
Open circuit status
24 V
24 V
PTC
Drive
and
filter
5.4.1.3.4 Shielding
The following points for shielding the sensor lines must be observed:
•
The shield of the sensor lines must be applied over a large area and with low impedance in the area of the
CMC header and connected to the X90 housing in the shortest possible way.
•
The cable shield must extend as far as possible to the CMC header. The area of the exposed conductors
of the sensor line must be kept as short as possible (<10 cm).
•
The cable length between the CMC header and cable shield clamp must be kept as short as possible (<10
cm).
•
For the best possible reduction of EMC interference, the X90 housing must be mounted on a well-conductive
mounting plate on which the cable shields must also be placed directly.
•
The X90 housing must be grounded.
<100 mm
Shield connection
