Hitachi L300P-1100H, Инструкция по эксплуатации

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will need to disconnect the short bar first.
• When you don’t use a DCL, don’t disconnect the short bar.
4. External braking resistor connection terminals (P, RB)
• The regenerative braking circuit (BRD) is built-in as standard up to the 15kW Inverter. When braking is
required, install an external-braking resistor to these terminals.
• The cable length should be less than 5 meters, and twist the two connecting wires to reduce inductance.
• Don’t connect any other device other than the external braking resistor to these terminals.
• When installing an external braking resistor make sure that the resistance is correctly rated to limit the
current drawn through the BRD.
5. Regenerative breaking unit connection terminals (P, N)
• The Inverters rated more than 18.5kW don’t contain a BRD circuit. If regenerative braking is required an
external BRD circuit (Option) is required along with the resistor (Option).
• Connect external regenerative braking unit terminals (P, N) to terminals (P,N) on the inverter. The braking
resistor is then wired into the External Braking unit and not directly to the Inverter.
• The cable length should be less than 5 meters, and twist the two connecting wires to reduce inductance.
6. Earth (G )
• Make sure that you securely ground the Inverter and motor for prevention of electric shock.
• The inverter and motor must be connected to an appropriate safety earth and follow the local standard.
Failure to do so constitutes an electrical shock hazard.
Chapter 2 Installation and Wiring