IMR01Y09-E3
11
4. WIRING
This chapter describes wiring cautions, wiring layout and wiring of terminals.
4.1 Wiring Cautions
•
To avoid noise induction, keep input signal wire away from instrument power line, load lines and
power lines of other electric equipment.
•
If there is electrical noise in the vicinity of the instrument that could affect operation, use a noise
filter.
−
Shorten the distance between the twisted power supply wire pitches to achieve the most effective
noise reduction.
−
Always install the noise filter on a grounded panel. Minimize the wiring distance between the
noise filter output and the instrument power supply terminals to achieve the most effective noise
reduction.
−
Do not connect fuses or switches to the noise filter output wiring as this will reduce the
effectiveness of the noise filter.
•
Power supply wiring must be twisted and have a low voltage drop.
•
For an instrument with 24 V power supply, supply power from a SELV circuit.
•
A suitable power supply should be considered in the end-use equipment. The power supply must be
in compliance with a limited-energy circuits (maximum available current of 8 A).
•
Use the solderless terminal appropriate to the screw size (M3).
To prevent electric shock or instrument failure, do not turn on the power until all
the wiring is completed.
WARNING
!
5.9 mm or less
3.2 mm or more
Recommended tightening torque:
0.4 N
⋅
m (4 kgf
⋅
cm)
