Chapter 4 Installation and Wiring Isolating transformer AHPS15-5A AC power supply 100-240 V 24 V DC DC power supply I/O equipment Another piece of equipment (2) The 110 VAC cable, the 220 VAC cable, and the 24 VDC cable should be twisted, and connected to a module within a short distance. (3) Do not bundle 110 VAC cable, the 220 VAC cable, the 24 VDC cable, the (high-voltage high-current) main circuit, and the I/O signal cable together. Besides, it is recommended that the distance between adjacent cables should be more than 100 millimeters. (4) To prevent the surge resulting from lightning, please install a surge absorber in the way shown below.
Surge absorber AC power supply 100-240V 4_ Points for attention: 1. The surge absorber and the PLC system should be grounded separately. 2. Please select the surge absorber whose working voltage is not less than the maximum allowable input voltage. 4.5.2 Ground The diameter of the ground should not be less than the diameters of the cables connected to the terminals L and N. If much equipment is used, please use single-point ground. AHPS05-5A AHPS15-5A Another piece of equipment The single-point ground is better. If single-point ground can not be used, please use common-point ground. AHPS05-5A AHPS15-5A A nother piece of equipment The common-point ground is permitted.
you can not ground equipment in the way shown on the right. AHPS05-5A AHPS15-5A Another piece of equipment The equipment can not be grounded in this way. 4-19 DC power supply I/O equipment Another piece of equipment DC power supply I/O equipment Another piece of equipment