Chapter 2 0BProgramming The wiring of the modules is described in detail below. (Please refer to AH500 Hardware Manual for more information.) 2.3.1 Wiring the Power Supply Module The alternating-current input voltage is within the range between 100 VAC and 240 VAC. Please connect the power supply to the terminals L and N. If the 110 VAC or the 220 VAC power supply is connected to the input terminals VS+ and VS-, the PLC will be damaged. In order to ensure that the 24 VDC external power supply is provided stably, it can be connected to VS+ and VS-. If the PLC detects that the voltage of the external power supply is lower than the working voltage, users can write a protective program.
(Please refer to section 6.6 in AH500 Operation Manual for more information.) The length of the wire connecting with the ground is 1.6 millimeters. If the power cut lasts for less than 10 milliseconds, the PLC keeps running without being affected. If the power cut lasts for long, or if the voltage of the power supply decreases, the PLC stops running, and there is no output. When the power supply returns to normal, the PLC resumes. (Users have to notice that there are latched auxiliary relays and registers in the PLC when they write the program.) Please use the single-core cable or the twin-core cable. The diameter of the cable used should be with the range between 12 AWG and 22 AWG.
The torque applied to the terminal screw should be within the range between 5 kg-cm (4.3 Ib-in) and 8 kg-cm (6.9 Ib-in). Please use the copper conducting wire. The temperature of the copper conducting wire should be 60/75°C. Safety wiring: The PLC controls many devices, and the activity of any device affects the activity of other devices. If a device breaks down, the whole automatic control system goes out of control, and the danger occurs. The protection circuit is as follows. A C 100~240V 50/60H z MC 24VD C 24VDC 2-7 VS+ VS- PS05 L N C PU UP ZP DI/DO Module UP ZP AI/AO Module L N VS+ VS- UP ZP UP ZP VS+ VS- PS05 L N UP ZP AI/AO M odule Network Module Motion Module L N VS+ VS- UP ZP