7 precautions for analog output modules, Cx)c ) – Toshiba SX 2000 User Manual
Page 140
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(1)
Use a shielded twisted-pair cable for the analog output signal line, and wire
over the minimum distance. Wire the grounding of the cable shield on the
load side, (j) in the drawing below is the basic.
Sometimes, operation is more stable if the wiring is as in © or
(D.
3.7 Precautions for Analog Output Modules
3.7 Precautions for Analog Output Modules
©
Analog
Output
P<
module
N<
Analog
Output
P'
module
N<
Analog
Output
P<
module
N<
/1
\L
-a
A=
)
0
C
}
0
C
30
C
X)C
)
0
C
A
KT
T\
r ~pL
__T
l_
I'
A
(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, use a dedicated power supply for
analog.
(3)
All intrinsically shielded cables are fitted with ferrite choke adjacent to
analog inputs/outputs, and must have ground connections to grounded
metalwork within 5cm for applying to the EMC Directive.
6F8C0926
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