7.1 Section Safety
DANGER
Electrical Shock Hazard
Do not connect or disconnect wiring while the power is on.
Failure to comply will result in death or serious injury.
Disconnect all power to the drive, wait
at least one minute after all indicators are off, measure
the DC bus voltage to confirm safe level, and check for unsafe voltages before servicing to
prevent electric shock. The internal capacitor remains charged even after the power supply
is turned off. The charge indicator LED will extinguish when the DC bus voltage is below
50 Vdc.
WARNING
Electrical Shock Hazard
Do not operate equipment with covers removed.
Failure to comply could result in death or serious injury.
The diagrams in this section may show drives without covers or safety shields to show
details. Be sure to reinstall covers or shields before operating the drives and run the drives
according to the instructions described in this manual.
Do not remove covers or touch circuit boards while the power is on.
Failure to comply could result in death or serious injury.
WARNING
Do not touch any terminals before the capacitors have fully discharged.
Failure to comply could result in death or serious injury.
Before wiring terminals, disconnect all power to the equipment. The internal capacitor
remains charged even after the power supply is turned off. The charge indicator LED will
extinguish when the DC bus voltage is below 50 Vdc. To prevent electric shock, wait at
least one minute after all indicators are
off and measure the DC bus voltage level to confirm
safe level.
7.1 Section Safety
166
YASKAWA ELECTRIC TOEP C710606 25B YASKAWA AC Drive J1000 Installation & Start-Up Manual
2/6/2008-14:44
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