Hitachi HF-W2000 58 Instruction Manual page 27

(3) Connectors
Precautions
• To connect a connector properly, insert it by using the proper orientation and at the proper angle. If a connector is
not inserted properly, the connection might fail or malfunction.
• Verify that there are no loose I/O cable connectors on the equipment.
(4) Power supply
(a) Power voltage
Required actions
• Confirm that the voltage of the power input to the equipment is within the specified range (100 to 240 V AC). If
the voltage of the power input is close to the upper or lower limit of the specified range, assume that the input
voltage has been set incorrectly, and ask the manager of the power facility to inspect the voltage output by the
facility.
(b) Power cord
Precautions
• The power cord that comes with the equipment is rated at an input voltage of 125 V AC. When using this
equipment at voltages over 125 V AC, prepare a power cord that is compatible with the input voltage to be used.
• Install Class D grounding (previously known as Class 3 grounding) as defined in the Technical Standard for
Electrical Facilities of Japan, to maintain normal operation of electronic circuits containing highly integrated LSIs
and to protect devices from abnormal voltage caused by lightning strikes or other causes.
• Use a power cord with a 2-prong plug and a grounding pole. (See 1.7 Hardware Connections.)
• When you plug the power cord into an outlet, use an outlet with a neutral pole that is properly grounded. In
addition, install and use an earth leakage circuit breaker.
• If you are using a power cord clamp to prevent accidental disconnection, allow for extra length in the power cord
around the connector when you secure the cord, in order to allow the cord to be disconnected in an emergency.
Alternatively, install an emergency circuit breaker at the outlet.
• Do not place any objects on the power cord. In addition, do not install signal lines near the power cord.
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