1 Preface and General Precautions
6
YASKAWA
TOEPC71061779B GA800 Drive Installation Manual
DANGER
Electrical Shock Hazard. Do 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 a minimum. The internal capacitor
stays charged after the drive is de-energized. The charge indicator LED extinguishes when the DC bus voltage decreases below 50
Vdc. When all indicators are OFF, remove the covers before measuring 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.
WARNING
Fire Hazard. Do not connect main power supply wiring to drive motor terminals U/T1, V/T2, and W/T3. Connect
main power supply wiring to main circuit input terminals R/L1, S/L2, and T/L3. Incorrect wiring can cause serious injury or death
from fire.
WARNING
Electrical Shock Hazard. 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, and will void the warranty. Yaskawa is not responsible for
modifications of the product made by the user.
WARNING
Crush Hazard. Only approved personnel can operate a crane or hoist to move the drive. If unapproved personnel
operate a crane or hoist, it can cause serious injury or death from falling equipment.
WARNING
Electrical Shock Hazard. 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.
WARNING
Electrical Shock Hazard. 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.
WARNING
Electrical Shock Hazard. Do not wear loose clothing or jewelry when you do work on the drive. Tighten loose
clothing and 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.
WARNING
Sudden Movement Hazard. Before you do Auto-Tuning, remove all personnel and objects from the area around
the drive, motor, and load. The drive and motor can start suddenly during Auto-Tuning and cause serious injury or death.
WARNING
Sudden Movement Hazard. Remove all personnel and objects from the area around the drive, motor, and
machine and attach covers, couplings, shaft keys, and machine loads before you energize the drive. If personnel are too close or if
there are missing parts, it can cause serious injury or death.
WARNING
Damage to Equipment. Do not apply incorrect voltage to the main circuit of the drive. Operate the drive in the
specified range of the input voltage on the drive nameplate. Voltages that are higher than the permitted nameplate tolerance can
cause damage to the drive.
WARNING
Fire Hazard. Do not put flammable or combustible materials on top of the drive and do not install the drive near
flammable or combustible materials. Attach the drive to metal or other noncombustible material. Flammable and combustible
materials can start a fire and cause serious injury or death.
WARNING
Fire Hazard. Tighten 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. Incorrect connections can also cause death or serious injury from fire.
WARNING
Fire Hazard. 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 cause damage to the terminal block or start a fire and
cause serious injury or death.
WARNING
Crush Hazard. Use a crane or hoist to move large drives when necessary. If you try to move a large drive without
a crane or hoist, it can cause serious injury or death.
WARNING
Electrical Shock Hazard. Do not cause a short circuit on the drive output circuit. A short circuit on the output can
cause serious injury or death.
WARNING
Electrical Shock Hazard. The drive can cause a residual current with a DC component in the protective earthing
conductor. When a residual current operated protective or monitoring device prevents direct or indirect contact, always use a type B
Ground Fault Circuit Interrupter (GFCI) as specified by IEC/EN 60755. If you do not use the correct GFCI, it can cause serious injury
or death.
WARNING
Electrical Shock Hazard. Ground the neutral point on the power supply of drive models 2xxxB/C and 4xxxB/C to
comply with the EMC Directive before you turn on the EMC filter. If you turn ON the EMC filter, but you do not ground the neutral
point, it can cause serious injury or death.
WARNING
Crush Hazard. Test the system to make sure that the drive operates safely after you wire the drive and set
parameters. If you do not test the system, it can cause damage to equipment or serious injury or death.
WARNING
Electrical Shock Hazard. After the drive blows a fuse or trips a GFCI, do not immediately energize the drive or
operate peripheral devices. Wait for the time specified on the warning label at a minimum and make sure that all indicators are OFF.
Then check the wiring and peripheral device ratings to find the cause of the problem. If you do not know the cause of the problem,
contact Yaskawa before 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 or death.
