Connecting To The Support Tool; Ground Wire Connection - Omron NT30C-ST141-E Operation Manual

Connecting to the Support Tool

Caution

2-2-3 Ground Wire Connection

NT30/
NT30C
Connect to a
ground of
100 Ω or
less.
Provide separate ground wires.
Correct use
2-3

Connecting to the Support Tool

S Parts Used for Connection
S For the connection to the power supply terminal block, twisted wires of 2 mm
or greater cross sectional area and M 3.5 size crimp terminals must be used.
Tighten the screws on the terminal block to a torque of 0.8 N⋅cm.
Otherwise fire may occur.
Use crimp terminals to connect the power supply to the power input terminals.
Recommended crimp terminals for M3.5 are given below.
7 mm or less
The NT30/NT30C has a functional ground terminal. To prevent malfunctions due
to excessive noise, or to prevent electric shocks, wire the NT30/NT30C to a
ground of 100 Ω or less using a separate ground wire (2 mm
wire should be connected to a point at a distance of 20 m or less. Do not use the
same ground wire for other devices, or connect the ground wire to a beam in a
building. To further reduce the influence of noise, connect a noise filter.
NT30/
Other
NT30C
devices
In order to prevent malfunctions due to noise, perform grounding correctly.
Connect the NT30/30C to a computer with an RS-232C cable to transfer the
screen data created by using the NT-series Support Tool to the NT30/30C.
An NT30/30C cannot be connected to both a personal computer running the NT-
series Support Tool and a PC at the same time. Connect the personal computer
only when transmitting screen data.
SW2 RESET - -CONTRAST
PRINTER RS-232C
Fork type
7 mm or less
Other
devices
Do not use a common ground wire.
24 VDC
SDA SDB RD RDB
A
Section
Round type
2
min.). The ground
NT30/
Other
NT30C
devices
2-3
2
21