7.1 Section Safety236 YASKAWA SIEPC71061753A GA500 Technical Manual7.1 Section SafetyDANGERElectrical Shock HazardDo not examine, connect, or disconnect wiring on an energized drive. Before servicing,disconnect all power to the equipment and wait for the time specified on the warning label at aminimum. The internal capacitor stays charged after the drive is de-energized. The chargeindicator LED extinguishes when the DC bus voltage decreases below 50 Vdc. When allindicators are OFF, measure for dangerous voltages to make sure that the drive is safe.If you do work on the drive when it is energized, it will cause serious injury or death from electrical shock. Thedrive has internal capacitors that stay charged after you de-energize the drive.WARNINGElectrical Shock HazardDo not operate the drive when covers are missing. Replace covers and shields before youoperate the drive. Use the drive only as specified by the instructions.Some figures in this section include drives without covers or safety shields to more clearly show the inside of thedrive. If covers or safety shields are missing from the drive, it can cause serous injury or death.Always ground the motor-side grounding terminal.If you do not ground the equipment correctly, it can cause serious injury or death if you touch the motor case.After the drive blows a fuse or trips an RCM/RCD, do not immediately energize the drive oroperate peripheral devices. Wait for the time specified on the warning label at a minimum andmake sure that all indicators are OFF. Then check the wiring and peripheral device ratings tofind the cause of the problem. If you do not know the cause of the problem, contact Yaskawabefore you energize the drive or peripheral devices.If you do not fix the problem before you operate the drive or peripheral devices, it can cause serious injury ordeath.Only let approved personnel install, wire, maintain, examine, replace parts, and repair the drive.If personnel are not approved, it can cause serious injury or death.Do not wear loose clothing or jewelry when you do work on the drive. Tighten loose clothingand remove all metal objects, for example watches or rings.Loose clothing can catch on the drive and jewelry can conduct electricity and cause serious injury or death.Do not remove covers or touch circuit boards while the drive is energized.If you touch the internal components of an energized drive, it can cause serious injury or death.Do not modify the drive body or drive circuitry.Modifications to drive body and circuitry can cause serious injury or death, will cause damage to the drive, andwill void the warranty. Yaskawa is not responsible for modifications of the product made by the user.Fire HazardTighten all terminal screws to the correct tightening torque.Connections that are too loose or too tight can cause incorrect operation and damage to the drive. Incorrectconnections can also cause death or serious injury from fire.Tighten screws at an angle in the specified range shown in this manual.If you tighten the screws at an angle not in the specified range, you can have loose connections that can causedamage to the terminal block or start a fire and cause serious injury or death.Do not use the main circuit power supply (Overvoltage Category III) at incorrect voltages.Operate the drive in the specification range of the input voltage on the drive nameplate.Voltages that are higher than the permitted nameplate tolerance can cause damage to the drive.Do not put flammable or combustible materials on top of the drive and do not install the drivenear flammable or combustible materials. Attach the drive to metal or other noncombustiblematerial.Flammable and combustible materials can start a fire and cause serious injury or death.
