Delta AH500 series Manual Page 162

  • Download
  • Add to my manuals
  • Print
  • Page
    / 297
  • Table of contents
  • TROUBLESHOOTING
  • BOOKMARKS
  • Rated. / 5. Based on customer reviews
Page view 161
Chapter 5 Wiring
5-4
(2) The area of the cross-section of the cable which is grounded should be 2 mm
2
or larger than 2 mm
2
.
(3) The ground point should be near the PLC. Ground the cable properly.
Note
(1) The 110 V/220 V power cable and the 24 V DC power cable should be thick cables. (The area of the
cross-section of the cable is 2 mm
2
, and the diameter of the cable is 14 AWG.) Be sure to twist the power
cables at terminal screws. To prevent the short circuit which results from loose screws, users need to use
solderless terminals with insulation sleeves.
(2) If cables are connected to the terminals LG and FG, the cables need to be grounded. Do not connect LG
and FG to any devices. If LG and FG are not grounded, the PLC will be susceptible to noise. Since LG
have potential, users will get an electric shock if they touch metal parts.
5.2 Connecting Power Cables
5.2.1 Precautions
Connecting AC power cables
(1) Please separate the power cable of AHPS05-5A from the power cables for I/O devices and other
devices. If there is much noise, connect an isolating transformer.
A
C power supply
100-240 V
AHPS05-5A
I/O equipment
Another piece of equipment
Isolating trans
f
ormer
(2) The 110 V AC cable, the 220 V AC cable, and the 24 V DC cable should be twisted, and connected to
a module within a short distance.
(3) Do not bundle 110 V AC cable, the 220 V AC cable, the 24 V DC 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.
AC power supply
100-240V
AHPS05-5A
I/O equipment
Surge absorber
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.
Page view 161
1 2 ... 157 158 159 160 161 162 163 164 165 166 167 ... 296 297

Comments to this Manuals

No comments