Safety Precautions - YASKAWA GA700 Technical Manual

High performance type; 200 v class: 0.4 to 110 kw; 400 v class: 0.4 to 355 kw

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3.1 Safety Precautions

Do not perform inspections or wiring while the drive is energized. De-energize all devices before

carrying out any wiring or repair operations. Voltage will remain within the capacitors inside the

drive even after the power has been switched off. The Charge LED is extinguished once the DC

bus voltage goes below 50 V DC. To prevent electric shock, always wait for at least the amount

of time indicated on the warning labels and confirm that all indicators are OFF. Then, remove the

front cover and terminal cover, measure the input power supply voltage and the DC bus voltage,

and make sure that the voltages have been lowered to safe levels.

Failure to comply may result in death or serious injury.

Do not operate equipment with covers removed. The diagrams in this section may include

drives without covers or safety shields to illustrate details. Be sure to reinstall covers or shields

before operating the drives and run the drives according to the instructions described in this

Failure to comply could result in death or serious injury.

Do not remove covers or touch circuit boards while the power is on.

Failure to comply could cause death or serious injury.

Prepare a separate holding brake. Wire the holding brake so when a fault occurs, it is activated

by an external sequence and shuts the power off or triggers an emergency switch.

Failure to comply could result in death or serious injury.

Make sure that proper safety measures have been taken in hoist-type application to prevent the

load from falling.

Failure to do so may result in injury.

Electrical Shock Hazard

Electrical Shock Hazard

Crush Hazard

YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual