Grounding - Omron Programmable Terminals NT631 Setup Manual

Installation
Note
Note
3-1-4

Grounding

34
Power Supply
The applicable power supply specifications are as follows.
Item
Power supply
Allowable power supply voltage
fluctuation range
Power supply voltage capacity
Parts Used for Connection
For the connection to the power supply terminal block, twisted wires of 2 mm
or greater cross sectional area and M3.5 size crimp terminals must be used.
Tighten the screws on the terminal block to a torque of 0.8 N ⋅ m.
7 mm max.
Recommended Terminals
Maker
Japan Solderless Terminal MFG
Fuji Terminal
Nichifu Terminal
Conformance to Shipbuilding Standard
• Cover the entire PT with electromagnetic shielding, and ground the elec-
tromagnetic shielding to the control panel with copper tape or other elec-
trically conductive tape.
Recommended electromagnetic shielding: E09F100 or E09R13502P
Manufacturer: Seiwa Electric MFG, Co., Ltd.
• Use gaskets or other materials to completely shield all openings and
other gaps in the control panel.
• Use copper tape or other electrically conductive tape to shield gaps
between the cutout and the PT before securing the PT in place.
• To suppress noise terminal voltage, perform installation under the follow-
ing conditions. It is recommended to use the following product for the DC
power supply.
Recommended Power Supply model: S82K-03024
Manufacturer: OMRON
The NT631/NT631C has a functional ground terminal (
Carry out wiring under the following conditions.
24 VDC
20.4 to 26.4 VDC (24 VDC –15% to +10%)
NT631-ST211 (B)-EV2:
30 W or more (Power supply warm-up time
within 200 ms.)
NT631C-ST141 (B) /ST153 (B)-EV3:
18 W or more
Fork type Round type
7 mm max.
Type Type
(fork type) (round type)
2-YS3A 2-3.5
2-YAS3.5 V2-S3.5
2Y-3.5 2-3.5
Section 3-1
Value
Applicable Wire
(stranded wire)
2
2.0 to 2.63 mm
).
2