Toshiba T2N - Manual (Page 73)

3.Application Precautions for I/O Modules
58 PROSEC T2N
(1) Use a shielded twisted-pair cable for the analog output signal line, and wire
over the minimum distance. Carry out the grounding of the cable shield
on the load side. (1) in the drawing below is the basic.
Sometimes, operation is more stable if the wiring is as in (2) or (3).
Analog
output
module
Analog
output
module
Analog
output
module
(2) Sometimes the conversion values are unstable, depending on the voltage
state of the external 24Vdc power supply.
If the conversion result is not stable, make the external power supply for
analog use a dedicated power supply.
Use of the 24Vdc external supply power source of the T2N power supply
module is recommended.
(3) All intrinsically shielded cables are occasionally fitted with ferrite choke
adjacent to analog inputs/outputs, must have ground connections to
grounded metalwork within 5cm for applying to the EMC directive.
3.6
Analog Output Module
Application Precaution