8.1 Section SafetyDANGERElectrical Shock HazardDo not connect or disconnect wiring while the power is on.Failure to comply will result in death or serious injury.Disconnect all power to the drive, wait at least one minute after all indicators are off, measure the DC bus voltage to confirmsafe level, and check for unsafe voltages before servicing to prevent electric shock. The internal capacitor remains chargedeven after the power supply is turned off. The charge indicator LED will extinguish when the DC bus voltage is below 50Vdc.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 reinstall covers orshields 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 powersupply is turned off. The charge indicator LED will extinguish when the DC bus voltage is below 50 Vdc. To prevent electricshock, 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.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 workon the drive.Always ground the motor-side grounding terminal.Improper equipment grounding could result in death or serious injury by contacting the motor case.Do not change wiring or remove option unit while power is running through the drive.Failure to comply could result in death or serious injury.Disconnect all power to the drive and check for unsafe voltages before servicing.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.NOTICEObserve proper electrostatic discharge procedures (ESD) when handling the drive and circuit boards.Failure to comply may result in ESD damage to the drive circuitry.Never connect or disconnect the motor from the drive while the drive is outputting voltage.Improper equipment sequencing could result in damage to the drive.8.1 Section Safety164 YASKAWA ELECTRIC SIEP C710606 31B YASKAWA AC Drive – J1000 Technical Manualhttp://nicontrols.com
