Grounding - Toshiba PROSEC T1-16S User Manual

4. Installation and Wiring

4.4 Grounding

1. Turn off power before wiring to minimize the risk of electrical shock.
!
CAUTION
2. Operation without grounding may cause electrical shock or malfunction.
The optimum method for grounding electronic equipment is to ground it separately
from other high-power systems, and to ground more than one units of electronic
equipment with a single-point ground.
Although the T1-16S has noise immunity to be used in industrial operating conditions,
grounding is important for safety and reliability.
Check the grounding against the following criteria.
1. The T1-16S must not become a path for a ground current. A high-frequency current
is particularly harmful.
2. Equalize the ground potentials when the expansion rack or unit is connected.
Ground the T1-16S and the expansion rack or unit at a single point.
3. Do not connect the ground of the T1-16S to that of high-power systems.
4. Do not use a ground that has unstable impedance, such as painted screws, or
ground subject to vibration.
The grounding marked terminal (see below) is provided on the T1-16S basic unit for
grounding purpose.
In case of the expansion rack is connected to the T1-16S, the rack mounting screw is
used for this purpose.
1.25mm
rack/unit with the enclosure grounding bus bar.
100 or less to ground is required.
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T1-16S User's Manual
Connect the ground terminal on the T1-16S to the system ground.
T1-16S
Mounting panel
System ground
2
(16 AWG) wire should be used to connect the T1-16S and the expansion
6F3B0253