Hitachi SJ300-037HFE 사용자 설명서
SJ300 Inverter
ix
General Warnings and Cautions
WARNING: Never modify the unit. Otherwise, there is a danger of electric shock and/or
injury.
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.
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.
check signals during operation.
CAUTION: Do not stop operation by switching OFF electromagnetic contactors on the
primary or secondary sides of the inverter.
primary or secondary sides of the inverter.
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.
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.
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Power
Input
Inverter
R, S, T
Ground fault
interrupter
U, V, W
Motor
FW
MCCB
GFI
L1, L2, L3