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SJ300 Inverter
General Warnings and Cautions
WARNING: Never modify the unit. Otherwise, there is a danger of electric shock and/or injury.
CAUTION: Withstand voltage tests and insulation resistance tests (HIPOT) are executed before the units are shipped, so there is no need to conduct these tests before operation.
CAUTION: Do not attach or remove wiring or connectors when power is applied. Also, do not check signals during operation.
CAUTION: Do not stop operation by switching OFF electromagnetic contactors on the primary or secondary sides of the inverter.
Power | Ground fault |
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Input | interrupter |
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| MCCB | GFI |
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| R, S, T | U, V, W |
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L1, L2, L3
FW
When there has been a sudden power failure while a Run command is active, then the unit may restart operation automatically after the power failure has ended. If there is a possibility that such an occurrence may harm humans, then install an electromagnetic contactor on the power supply side, so that the circuit does not allow automatic restarting after the power supply recov- ers. If an optional remote operator is used and the retry function has been selected, this will also allow automatic restarting when a Run command is active. So, please be careful.