InspectionCategory Inspection Points Corrective Action CheckedLoad • The drive output current should not behigher than the motor or drive rating foran extended period of time.• Check for excessive load.• Check the motor parameter settings ofthe drive.Power SupplyVoltage • Check main power supply and controlvoltages.• Correct the voltage or power supply towithin nameplate specifications.• Verify all main circuit phases.u Recommended Periodic InspectionTable 6.2 outlines the recommended periodic inspections for Yaskawa drive installations.Periodic inspections should generally be checked every 3-6 months; however, the drive mayrequire more frequent inspection due to poor environments or rigorous use. Operating andenvironmental conditions, along with experience in each application, will determine the actualinspection frequency for each installation. Periodic inspection will help to avoid prematuredeterioration in performance or product failure. Copy this checklist and mark the “Checked”column after each inspection.n Periodic InspectionWARNING! Electrical Shock Hazard. Do not connect or disconnect wiring while the power is on. Failure tocomply can result in serious personal injury. Before servicing the drive, disconnect all power to the equipment.The internal capacitor remains charged even after the power supply is turned off. The charge indicator LEDwill extinguish when the DC bus voltage is below 50 Vdc. To prevent electric shock, wait at least one minuteafter all indicators are OFF and measure the DC bus voltage level to confirm safe level.6.2 Inspection156 YASKAWA ELECTRIC TOEP C710606 25B YASKAWA AC Drive J1000 Installation & Start-Up Manual
