A. Technical appendix
A−15
Festo P.BE−CPX−AX−EN en 0503b
Connecting the sensor for bipolar voltage signals
No
te
With this connecton variant, the following measuring faults
occur when the analogue value is registered:
overlapping of the value range in the vicinity of 0 V
(offset fault of the input amplifier)
symmetry fault in respect of the zero point (0 V).
1
Sensor 4 ... 20 mA
2
Positive sensor
voltage
3
Negative sensor
voltage
4
Connections to
analogue CPX module
1
2
IUx−
3
IUx+
+
4
IU(x+1)−
IU(x+1)+
Fig.A/5:
Registering bipolar voltage signals with 2 inputs
Содержание CPX-2AA-U-I
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Страница 221: ...Index B 1 Festo P BE CPX AX EN en 0503b Appendix B...
Страница 222: ...B Index B 2 Festo P BE CPX AX EN en 0503b Contents B Index B 1...