Precautions For Analog Input Modules - Toshiba V Series User Manual

3.6 Precautions for Analog Input Modules

(1) Use a shielded twisted-pair cable for the analog input signal line, and wire over the
minimum distance. Wire the grounding of the cable shield on the analog input side
(the model 2000 side). (a) in the drawing below is the basic.
Sometimes, operation is more stable if the wiring is as in (b) or (c).
(2) Conversion values may vary depending on the voltage status of the external 24V
power supply. If the conversion result is not stable, use an external power supply
dedicated to analog input.
6F8C0836
(a)
(b)
(c)
3.6 Precautions for Analog Input Modules
Analog
P
Input
module
N
FG
Analog
P
Input
module
N
FG
Analog
P
Input
module
N
FG
3
131