N700E INSTRUCTION MANUAL
2-9
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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)
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The Inverters rated more than 30KW don’t contain a BRD circuit. If regenerative braking is
Required an external BRD circuit (Option) is required along with the resistor (Option)
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Connect external regenerative braking unit terminals (P,N) to terminals (P,N) on the inverter.
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The braking resistor is then wired into the External Braking unit and not directly to the Inverter.
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The cable length should be less than 5 meters, and twist the connecting wires to reduce
Inductance.
⑥
Earth Ground (G)
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Make sure that you securely ground the inverter and motor for prevention of electric shock.
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The inverter and motor must be connected to an appropriate safety earth ground and follow all
local electrical codes.
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In case connecting 2 or more inverters, use caution not to use a loop which can cause some
malfunction of the inverter.
Fig. 2- 4 Earth Ground (G)
INVERTER
INVERTER
INVERTER
INVERTER
INVERTER
INVERTER