3-1 Installing the PT
3-1-5 Wiring the Ground Wire
The PT is provided with a functional ground (FG: ) terminal.
Wire the FG terminal according to the following conditions.
1. Ground according to Figure when there is difference in potential between the PT and host.
Do not ground the functional ground of the PT if it is far from the host and one-point
grounding is difficult.
PT Host
One-point
grounding
2. Do not ground the functional ground (FG: ) of the PT if it is mounted to the same panel
as devices that generate noise, such as motors and inverters.
Note Ground correctly to prevent malfunctions caused by noise.
3-1-6 Peripheral Device Connection Limitations
Select one of the following combinations when devices requiring power supply are connected
to port A, port B, and an Expansion Interface Unit on the PT. Use a 5-V Bar Code Reader with
a current consumption of 250 mA or the equivalent.
Port A and B connection combinations Expansion Interface Unit
(NS-CA001, NS-CA002,
NS-CLK21)
When a Bar Code Reader and the NS-AL002 are connected to
ports A and B at the same time
Cannot be used
When a Bar Code Reader and the CJ1W-CIF11 are connected
to ports A and B at the same time
Cannot be used
When a Bar Code Reader and the NT-AL001 are connected to
ports A and B at the same time
Cannot be used
When the CJ1W-CIF11 and C1W-CIF11 are connected to ports
A and B at the same time
Can be used
When the CJ1W-CIF11 and NS-AL002 are connected to ports A
and B at the same time
Can be used
When the CJ1W-CIF11 and NT-AL001 are connected to ports A
and B at the same time
Cannot be used
When two NT-AL001s are connected to ports A and B at the
same time
Cannot be used
When a Bar Code Reader is connected to port A or B Can be used
When the CJ1W-CIF11 is connected to port A or B Can be used
When the NS-AL002 is connected to port A or B Can be used
When the NT-AL001 is connected to port A or B Can be used
When Bar Code Readers are connected to ports A and B at the
same time
Cannot be used
When the NT-AL001 and NT-AL002 are connected to port A or
B at the same time
Cannot be used
3-7
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