Chapter 6 Wiring, Communication Setting and Network Construction 6.1 Wiring 6.1.1 Power Supply The power input of the motion controller is 24V DC. Please notice the following points during use. Connect the supply power to the two terminals, 24V and 0V and the grounding terminal to the earth. Be cautious that the motion controller may be damaged if the positive and negative polarities of the supply power are connected reversely.
Please be sure to use certified power supply with SELV output or certified power supply providing double insulation evaluated by UL60950, or UL61010-1 and UL61010-2-201 standards Use copper conductors as power wires only.The diameter of power wires must be between 12 and 28AWG and the rated temperature should be greater than 70°C. The power terminal block plug wiring torque is 4.5 in-lbs. Separate the supply power for the controller, the external supply power for input and output points of the controller and the supply power for other loads. The controller uses an individual supply power. Add a noise filter and an isolation transformer before the controller’s supply power.
The isolation transformer is installed between the supply power and the noise filter. The transformer secondary side need not be earthed. See the wiring diagram below. The isolation transformer effectively reduces interference from the ground, electrical surge noise and etc. The power wires between the isolation transformer and the controller should be tightly twisted. The shorter the distance between them is, the better effect is produced. Be sure to keep away from the power lines and high voltage lines. The noise filter can effectively reduce interference.
The incoming cable and the outgoing cable of the filter should be arranged separately to avoid coupling the interference before the noise filter to the cable after the noise filter. The long power shutdown or power voltage drop will stop the motion controller from running and the controller will stop communicating with the servo drive when all outputs are FALSE. The motion controller will resume the connection with the servo drive when the power supply returns to normal. 6_ 6-3