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U41290-J-Z816-3-76
CHAPTER 2 Overview and Installation of the Main Unit
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If power to the main unit is supplied from a power strip or the service outlet of
another unit, overloading may occur in the other unit or the power strip's cable.
- Make sure that the current rating of the power strip or service outlet exceeds the
combined current ratings of the units to which it is supplying power.
- The electrical rating of the main unit per power cable is 200 to 240 VAC, 6.0 A
at 50/60 Hz, single-phase.
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Securely ground the main unit mounted in the rack.
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Always ground the main unit even if power is not supplied to the main unit directly
from a distribution panel (but indirectly, for example, via a power strip).
• General safety precautions
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Do not cover or block ventilation openings.
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Install the main unit in a location away from direct sunlight and sources of heat.
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Install the main unit in an environment free of dust, corrosive gases, and salt air.
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Install the main unit in a location free of vibration and on an even surface to
prevent the main unit from leaning.
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Use grounding that is Class 3 or higher. To prevent malfunctioning of the main
unit, do not use a shared ground connection. Always use an independent ground
connection.
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Do not run any cable beneath any equipment. Also, prevent cables from becoming
taut. Never disconnect the power cable of the main unit while power is being
supplied to the main unit.
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Keep objects off the top of the main unit.
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In winter, slowly raise the ambient room temperature to prevent condensation from
forming in the main unit.
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Use the main unit only after it has warmed up sufficiently.
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Install the main unit away from noise-generating sources, such as photocopiers, air
conditioners, and welding equipment.
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Take preventive measures to control electrostatic buildup. Note that carpets often
generate static charge which may cause malfunction of the main unit.
Equipment damage
Connect the ground cable of the main unit before connecting any of the power cables
of the main unit. If all the power cables of the main unit are connected to a single
power strip, a serious current leakage exceeding the stipulated level may flow
through the ground cable of the power strip.
Use a power strip with an industrial plug (CEE17/IEC309) if the power strip is not
directly connected to the distribution panel.
