Section Safety; Section Safety - YASKAWA FSDrive-MV1000 Instructions Manual

6.1 Section Safety

6.1

Section Safety

Do not connect or disconnect wiring while the power for the main circuit and controls is on.
Failure to comply could result in death or serious injury.
Even when the power supply of the medium-voltage main circuit to the drive is shut off, it takes some time for the
internal capacitors to discharge. Wait until the CHARGE LED goes off before starting inspection. While an residual
electric charge remains in the capacitor, the surface and inside of the Power Cell will carry a high voltage, so there will
be a risk of death or serious injury. The heatsink of the Power Cell can become quite hot during operation, and proper
precautions should be taken to prevent burns. When replacing the cooling fan, shut off the main circuit's power and
then wait at least 15 minutes. Then, shut off the control circuit's power and make sure that the cooling fan has fully
stopped before starting the work.
Never connect or disconnect wiring, remove connectors or option cards, or replace the cooling fan, while the power is
on.
Failure to comply could result in death or serious injury.
Disconnect the power to the drive and check that there is no residual charge in it before starting servicing.
Do not supply power to the main circuit while drive covers are removed.
Failure to comply could result in death or serious injury.
The diagrams in this section may show the drive without covers or safety shields to show details. Be sure to reinstall
covers or shields before operating the drive and run the drive according to the instructions described in this manual.
Always ground the motor-side ground terminal.
Improper equipment grounding could result in death, serious injury, or fire by contacting the motor case.
Do not remove covers or touch circuit boards while the power is on.
You could sustain an electric shock.
Do not touch the input and output terminals directly with your hands and do not bring the input and output wires into
contact with the drive's case.
Do not allow unqualified personnel to perform work on the drive.
Failure to comply could result in death or serious injury.
The drive should be installed, wired, repaired, inspected, and have its parts replaced, by someone with a thorough
knowledge of drive installation, adjustment and repair.
Do not perform work on the drive while wearing loose clothing, jewelry, or without eye protection.
Failure to comply could result in death or serious injury.
Remove all metal objects such as watches and rings, secure loose clothing and wear eye protection before beginning
work on the drive.
Tighten all terminal screws to the specified tightening torque.
Loose electrical connections could result in death or serious injury by fire due to overheating of electrical connections.
Do not use an improper voltage source.
Failure to comply could result in death or serious injury by fire.
Verify that the rated voltage of the drive matches the voltage of the incoming power supply before applying power.
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DANGER
Electrical Shock Hazard
W ARNING
Electrical Shock Hazard
Fire Hazard
YASKAWA ELECTRIC EZZ010928 FSDrive-MV1000 Instructions