8
IMR01Y35-E3
4. WIRING
This chapter describes wiring cautions, terminal configuration and connections.
4.1 Wiring Cautions
•
To avoid noise induction, keep communication 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 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).
•
Make sure that the any wiring such as solderless terminal is not in contact with the adjoining terminals.
To prevent electric shock or instrument failure, do not turn on the power until all
wiring is completed. Make sure that the wiring is correct before applying power
to the instrument.
WARNING
!
5.9 mm or less
3.2 mm or more
Recommended tightening torque:
0.4 N
⋅
m (4 kgf
⋅
cm)
