GT seriesInstallation and Wiring162.2 Wiring the Power Supply2.2 Wiring the Power Supply2.2.1 Wiring the Power SupplyThe power supply should be wired by securely connecting the terminal on the rear ofthe main unit to the terminal.Use twisted wiring for the power supplyIn order to minimize influence from noise, the wiring for the power supply should betwisted.Insulate the power supply inside a protective circuit- In order to protect the unit against abnormal voltage from the power supply line, thepower supply should be an insulated type, and should be enclosed within a protectivecircuit.- A non - insulated regulator is used with the GT series.- If a power supply device without an internal protective circuit is being used, powershould always be supplied to the GT series through a fuse or a similar protective device.Keep the power supply voltage within the operating voltage rangeOperating voltage range 4.5 to 5.5V DCKeep the power supply wiring separate- Wiring to the GT series, PLC, and other power equipment should have separate wiringsystems.PLCGT seriesBreakerPowerequipmentInsulated DCpower supply