344 YASKAWA ELECTRIC SIEP C710616 27C YASKAWA AC Drive A1000 Technical Manual7.1 Section Safety7.1 Section SafetyDANGERElectrical Shock HazardDo not connect or disconnect wiring while the power is on.Failure to comply will result in death or serious injury.Before servicing, disconnect all power to the equipment. The internal capacitor remains charged even after the powersupply is turned off. The charge indicator LED will extinguish when the DC bus voltage is below 50 Vdc. To preventelectric shock, wait for at least the time specified on the warning label once all indicators are OFF, and then measurethe DC bus voltage level to confirm it has reached a safe level.Never connect or disconnect wiring, remove connectors or option cards, or replace the cooling fan while thepower is on.Failure to comply will result in death or serious injury.Before servicing, disconnect all power to the equipment. The internal capacitor remains charged even after the powersupply is turned off.WARNINGElectrical Shock HazardDo 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 reinstallcovers or shields before operating the drives and run the drives according to the instructions described in this manual.Always ground the motor-side grounding terminal.Improper equipment grounding could result in death or serious injury by contacting the motor case.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 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 withinstallation, adjustment, and maintenance of AC drives.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 beginningwork on the drive.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 thepower supply is turned off. After shutting off the power, wait for at least the amount of time specified on the drivebefore touching any components.
