u Safety MessagesWARNINGHeed the safety messages in this manual.Failure to comply could result in death or serious injury.The operating company is responsible for any injuries or equipment damage resulting from failure to heed the warnings inthis manual.Sudden Movement HazardSystem may start unexpectedly upon application of power, resulting in death or serious injury.Clear all personnel from the drive, motor and machine area before applying power. Secure covers, couplings, shaft keys andmachine loads before applying power to the drive.Electrical Shock HazardDo not connect or disconnect wiring while the power is on.Failure to comply could result in death or serious injury.Before servicing, disconnect all power to the equipment. The internal capacitor remains charged even after the power supplyis turned off. The charge indicator LED will extinguish when the DC bus voltage is below 50 Vdc. To prevent electric shock,wait for at least the time specified on the warning label, once all indicators are OFF, measure for unsafe voltages to confirmthe drive is safe prior to servicing.Do not attempt to modify or alter the drive in any way not explained in this manual.Failure to comply could result in death or serious injury.Yaskawa is not responsible for any modification of the product made by the user. This product must not be modified.Do not allow unqualified personnel to use equipment.Failure to comply could result in death or serious injury.Maintenance, inspection, and replacement of parts must be performed only by authorized personnel familiar with installation,adjustment and maintenance of AC drives.Do not remove covers or touch circuit boards while the power is on.Failure to comply could result in death or serious injury.Make sure the protective earthing conductor complies with technical standards and local safety regulations.Because the leakage current exceeds 3.5 mA, IEC/EN 61800-5-1 states that either the power supply must be automaticallydisconnected in case of discontinuity of the protective earthing conductor or a protective earthing conductor with a cross-section of at least 10 mm2 (Cu) or 16 mm2 (Al) must be used. Failure to comply may result in death or serious injury.Always use appropriate equipment for Ground Fault Circuit Interrupters (GFCIs).The drive can cause a residual current with a DC component in the protective earthing conductor. Where a residual currentoperated protective or monitoring device is used for protection in case of direct or indirect contact, always use a type B GFCIaccording to IEC/EN 60755.Fire HazardBranch Circuit protection is required to be installed according to applicable local codes and the requirements listed on theZ1000 Bypass nameplate. Failure to comply could result in fire and damage to the bypass and drive or injury to personnel.The Z1000 Bypass is suitable for use on a circuit capable of delivering not more than 100,000 RMS symmetrical amperes,208 Vac and 480 Vac with the circuit breaker option or when protected by class J or class L fuses as specified on the Z1000Bypass nameplate. Consult factory for additional information if needed.Do not use an improper voltage source.Failure to comply could result in death or serious injury by fire.Verify that the rated voltage of the drive matches the voltage of the incoming power supply before applying power.i.2 General SafetyYASKAWA ELECTRIC SIEP YAIZ1B 01E YASKAWA AC Drive – Z1000 Bypass Technical Manual 17
