Omron G3PW - MANUAL 2 User Manual page 10

● Installation Environment
• Use the Power Controller within the rated ambient temperature and humidity ranges. If multiple Power Con-
trollers are installed side-by-side or vertically, the heat that is generated will cause the internal tempera-
tures of the Power Controllers to rise and will shorten their service life. In these kinds of installations, take
suitable measures, such as installing fans for forced cooling.
• The Power Controller is designed for indoor use only. Also, do not use the Power Controller in the following
environments.
• Locations subject to water, oil, or chemicals
• Locations subject to direct sunlight
• Locations where dust or corrosive gases (in particular, sulfuric or ammonia gas) are present
• Locations subject to extreme temperature changes
• Locations where icing or condensation may occur
• Locations subject to excessive shocks or vibration
• Locations subject to direct heat radiated from heating devices
● Installation and Wiring
• When installing the Power Controller, always securely tighten the top mounting screws first. When remov-
ing the Power Controller, always remove the bottom mounting screws first.
• Take safety measures, such as wearing safety shoes, in case the Power Controller falls.
• Touch the Power Controller only after first touching a grounded metal object to discharge any static elec-
tricity from your body.
• Always ground the Power Controller to 100 Ω or less. There are no ground terminals provided, so use the
heat sink mounting screws as ground terminals.
• Check the terminal number and polarity for each input before connecting it.
• Use copper twisted wire in the sizes specified in this Instruction Sheet.
• Use insulated crimp terminals with insulation sleeves. If using crimp terminals that are not insulated, cover
them with insulation sleeves. Also, use terminals of the sizes specified in this Instruction Sheet.
• Insert connectors all the way.
• Do not connect anything to unused terminals.
● Safety Measures and Checking
• Install a switch or circuit breaker so that the operator can immediately turn OFF the power, and provide a
suitable display.
• Apply the power supply voltage through the contacts of a switch, relay, or similar device so it reaches the
rated voltage within 2 s. If the voltage is increased gradually, the power supply may not be reset or outputs
may malfunction.
• Use a power supply voltage, input voltage, input current, and load within the specifications and rated
ranges for the Power Controller. Use a load that draws a current at the maximum output that is within the
rated current range of the Power Controller. If the current drawn by the load is not within the rated current
range, malfunction or fire may occur.
• To prevent electric shock, damage, or malfunction, complete all the wiring before turning ON the power.
• Make sure that the protective cover is attached to the load terminal block before using the Power Control-
ler. Failure to do so may damage internal components due to mechanical stress.
● Preventing Inductive Noise
• Install a switch or circuit breaker so that the operator can immediately turn OFF the power, and provide a
suitable display.
• Apply the power supply voltage through the contacts of a switch, relay, or similar device so it reaches the
rated voltage within 2 s. If the power supply voltage is increased gradually, the power supply may not be
reset or outputs may malfunction.
Precautions for Safe Use
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