Analog Input Modules - Toshiba nv Series Instruction Manual

Appendix C Notes on Applying the I/O Modules
C.5

Analog Input Modules

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6F8C1575
(1) For the analog input signal line, use a shielded twisted pair cable and wire it at the
minimum distance. Ground the cable shield at the analog input module. To satisfy
the requirements in the EMC instructions, connect the shielded cable at the
minimum (i.e., within 3 cm) distance to the chassis that contains the installed nv
series type2 light controller. The configuration in (2) or (3) in Figure C.6-1 may,
however, be more stable in some cases.
Figure C-16 Analog input shield ground
(2) The converted value may be unstable, depending on the voltage state of the 24 V
power supply.
If the converted result is unstable, replace the analog external power supply with
the dedicated power supply
Analog
input
module
Analog
input
module
Analog
input
module