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24
Installation Environment
Section 2-1
2-1
Installation Environment
Observe the following precautions when installing an NSH5 Programmable
Terminal.
Precautions
Do not install the PT in the following locations.
• Locations subject to severe changes in temperature
• Locations subject to temperatures or humidity outside the range specified
in the specifications
• Locations subject to condensation as a result of severe changes in tem-
perature
• Locations subject water, oil, or chemical spray
• Locations subject to corrosive or flammable gases
• Locations subject to shock or vibration
• Locations outdoors directly subject to wind or rain
• Locations subject to strong ultraviolet light
Take appropriate and sufficient countermeasures when installing systems in
the following locations.
• Locations subject to static electricity or other forms of noise
• Locations subject to strong electromagnetic fields
• Locations close to power lines
• Locations subject to possible exposure to radioactivity
Note
Before unpacking the PT or Peripheral Devices, look the product over and
check for any damage. Gently shake the product and listen for any abnormal
sounds.
2-2
Power Supply and FG Wiring
2-2-1
Power Supply Wiring
Connect a 24-VDC power supply to the power supply input terminals. The fol-
lowing table shows the specifications for the power supply that can be con-
nected. Determine the power supply specifications so that the power supply
capacity is satisfied.
Wire the power supply input terminals to the 24-VDC power supply as shown
below.
Note
(1) Do not connect an AC power supply to the power supply terminals.
Item
Specifications
Power supply voltage
24 VDC
Allowable power supply voltage
fluctuation range
20.4 to 27.6 VDC (24 VDC
±
15%)
Power supply capacity
10 W min.
24 VDC
(Functional ground)
24-VDC interface at NSH5
3-A fuse
Summary of Contents for NSH5
Page 2: ......
Page 4: ...iv ...
Page 12: ...xii ...
Page 16: ...xvi ...
Page 24: ...xxiv EC Directives 6 ...
Page 58: ...34 Installing the Mounting Bracket Section 2 5 ...
Page 86: ...62 Connection Method Section 4 5 ...
Page 92: ...68 Precautions When Replacing the PT Section 5 4 ...
Page 98: ...74 General Specifications Appendix A ...
Page 99: ...75 Appendix B Dimensions 75 50 176 223 75 Four M4 70 5 16 5 ...
Page 102: ...78 Types of Memory Appendix C ...
Page 107: ...83 Recommended Enabling Circuits Appendix D Program Example ...
Page 108: ...84 Recommended Enabling Circuits Appendix D ...