Omron NX701-1700 User Manual page 123

• When wiring an AC Power Supply Unit, if one power supply phase of the equipment is grounded,
always connect the grounded phase to the L2/N terminal.
L1
L2/N
When using the DC Power Supply Unit, you can omit grounding the ground terminals.
• If the DIN Track is made of steel and its surface is not insulated.
Power Supply Unit
DIN Track
If the surface of the DIN Track is treated to produce an insulating material (e.g., anodized aluminum), the DIN
Track contact plate will not be electrically connected to the DIN Track even if they are in physical contact.
Isolating the CPU Rack from the Control Panel
If the ground wire for a Unit with a ground terminal is shared with power equipment, noise will adversely
affect the Units.
You can use OMRON NX-AUX01 DIN Track Insulation Spacers with PFP-50N or PFP-100N DIN Tracks
to isolate the CPU Rack from the control panel.
 Installing DIN Track Insulation Spacers and DIN Track
Secure the DIN Track Insulation Spacers to the control panel with screws, and then secure the DIN Track
to the DIN Track Insulation Spacers. The recommended tightening torque for M4 screws is 1.2 N·m.
DIN Track
Insulation Spacers
NX-series CPU Unit Hardware User's Manual (W535)
Electrically connected to the DIN Track
through the DIN Track contact plate.
Ground terminal
Ground
DIN Track
Control panel
4 Installation and Wiring
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Screws, M4 10
4
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