28System Configuration and WiringCircuit Breaker (NFB) Use the circuit breaker matching capacityof the power source to protect the powerlines. Noise Filter (NF) Prevents external noise from the powerlines. And reduces an effect of the noisegenerated by the servo driver. Magnetic Contactor (MC) Turns on/off the main power of the servodriver. Use a surge absorber together with this. • Never start nor stop the servo motorwith this Magnetic Contactor. Reactor (L) Reduces harmonic current of the mainpower.(see P.32, 33 and 177.)(see P.177 , 178.)(see P.32, 33.)(see P.189.)• Wiring of the Main Circuit (see P.34, 35.)• Connection to the Connector, CN X1 (connection to input power) Before turning the power supply on, check whether the input voltage is correct.RB1 (Pin-6)RB2 (Pin-4)L1 (Pin-5)L2 (Pin-4)L3 (Pin-3)L1C (Pin-2)L2C (Pin-1)• Connection to the Connector, CN X2 (connection to external components)Handle lever Use this for connectorconnection. Store this afterconnection for other occasions. (see page for connection.)Pin RB1 (6-pin), RB2 (4-pin), andRB3 (5-pin) RB2 and RB3 to be kept shorted fornormal operation. • When the capacity shortage ofthe regenerative resister is found,disconnect a shorting bar be-tween RB2 and RB3, then connectthe external regenerative resisterbetween RB1 and RB2. (Note that no regenerative resisteris equipped in Frame A and B type.Install an external regenerativeresister on incombustible materi-al, such as metal. Follow the samewiring connection as the above.) • When you connect an external re-generative resister, set up SV.Pr6Cto 1 or 2.Regenerative resistor (optional) • When you use an external regenerative resister, installan external protective apparatus, such as thermal fusewithout fail. • Thermal fuse and thermostat are built in to theregenerative resistor (Option). If the thermal fuse isactivated, it will not resume.Overall Wiring (Connecting Example of C-frame, 3-phase)
