Hitachi NES1-002LB, Quick Reference Manual

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Chapter 5 Wiring
5 - 1
5.1 Precautions for Wiring
WARNING
- In order to prevent damage caused by static electricity, Please remove the static electricity of the body
touch the nearby metal before touching this product.
- Be sure to ground the inverter. Otherwise, you run the risk of electric shock or fire.
- Commit wiring work to a qualified electrician. Otherwise, you run the risk of electric shock or fire.
- Before wiring, make sure that the power supply is off. Otherwise, you run the risk of electric shock or
fire.
- Perform wiring only after installing the inverter. Otherwise, you run the risk of electric shock or injury.
- The inverter must be powered OFF before you change any of the slide switch settings.Otherwise, you
run the risk of electric shock or injury.
CAUTION
- Make sure that the voltage of AC power supply matches the rated voltage of your inverter.
Otherwise, you run the risk of injury or fire.
- Do not input single-phase power into the 3-phase inverter. Otherwise, you run the risk of fire.
- Do not connect AC power supply to any of the output terminals (U, V, and W). Otherwise, you run the
risk of injury or fire.
- NE-S1 series inverter do not have terminals for braking resistor. Do not connect the resistor.
Otherwise there is a risk of fire.
- Connect an earth-leakage breaker to the power input circuit. Otherwise, you run the risk of fire.
- Use only the power cables, earth-leakage breaker, and magnetic contactors that have the specified
capacity (ratings). Otherwise, you run the risk of fire.
- Do not use the magnetic contactor installed on the primary and secondary sides of the inverter to
stop its operation.
- Tighten each screw to the specified torque. No screws must be left loose. Otherwise, you run the risk
of fire.
- Before operating slide switch in the inverter, be sure to turn off the power supply. Otherwise, you run
the risk of electric shock and injury.
- Please make sure that earth screw was tighten completely in advance.
-
First, check the tightening the screws of output terminal (U, V and W), and then tighten the screws
of input terminal (R,S and T).
- Factory default of C036 is "b contact(NC)". In the event that the initialization, C036 will be the “b
contact(NC)”. If you wish to use as a replacement for the conventional model of this inverter, such as
in the case of built-in system use, please first check the configuration of C036. And, you must
conform to the peripheral circuit logic. There is a risk of system down by logical inconsistency
contact.
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