Yaskawa J1000 Compact V/f Control Drive - Manual (Page 178)

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.
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.
Do not allow unqualified personnel to perform work on the drive.
Failure to comply could result in death or serious injury.
Installation, maintenance, inspection and servicing must be performed only by authorized
personnel familiar with installation, adjustment and maintenance of AC drives.
7.1 Section Safety
178 YASKAWA ELECTRIC TOEP C710606 26D YASKAWA AC Drive – J1000 Quick Start Guide