5 - 73
5 Installation and Wiring
NX-series NX1P2 CPU Unit Hardware User’s Manual (W578)
5-4 Wiring
5
5-4-12 Wiring the Analog I/O Option Board
Wiring for Analog Outputs
Precautions for Correct Use
To ensure this Option Board is kept in the best operating condition, observe the following points
when wiring to avoid the effects of the noise.
• Use a shield wire (2 conductors, twisted wire) or a shield wire (3 conductors) as the input con-
nection line for each output. Connect the shield according to the specifications of the input
device.
• Wire the output connection lines and power lines (e.g., AC power supply lines or power lines)
separately. Do not place such lines in the same duct.
• Insert a noise filter into the power supply input section if noise comes from power supply lines
when using the same power supply to power an electrical welder or an electric discharge
machine, or there is a high-frequency source nearby.
When external power is supplied, or when the power is interrupted, there may be a pulse status
analog output of up to 1 ms. If this status is a problem, take the following measures.
• Turn ON the power to the CPU Unit, check the operation status, and then turn ON the power
at the load.
• Turn OFF the power to the load and then turn OFF the power to the Unit.
COM
V OUT
Analog
Output
Option
Board
Analog
device with
voltage
input
FG
2-core shielded
twisted-pair cable
To Next Page
Loading...
Need help?
General
