Section Safety - YASKAWA HV600 Installation & Startup

5.1 Section Safety

5.1

Section Safety

Do not examine, connect, or disconnect wiring on an energized bypass. 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 bypass 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 bypass
is safe.
If you do work on the bypass when it is energized, it will cause serious injury or death from electrical shock.
Do not operate the bypass when covers are missing. Replace covers and shields before you
operate the bypass. Use the bypass only as specified by the instructions.
Some figures in this section include bypasses without covers or safety shields to more clearly show the inside of the
bypass. If covers or safety shields are missing from the bypass, it can cause serious 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 bypass blows a fuse or trips a GFCI, do not immediately energize the bypass 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
bypass or peripheral devices.
If you do not fix the problem before you operate the bypass or peripheral devices, it can cause serious injury or
death.
Only let approved personnel install, wire, maintain, examine, replace parts, and repair the bypass.
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 bypass. Tighten loose clothing and
remove all metal objects, for example watches or rings.
Loose clothing can catch on the bypass and jewelry can conduct electricity and cause serious injury or death.
Do not remove covers or touch circuit boards while the bypass is energized.
If you touch the internal components of an energized bypass, it can cause serious injury or death.
Do not modify the bypass body, drive body, bypass circuitry, or drive circuitry.
Modifications to bypass and drive body and circuitry can cause serious injury or death, will cause damage to the
bypass and drive, and will void the warranty. Yaskawa is not responsible for modifications of the product made by
the user.
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 bypass. Incorrect
connections 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 cause
damage to the terminal block or start a fire and cause serious injury or death.
90
DANGER
Electrical Shock Hazard
WARNING
Electrical Shock Hazard
Fire Hazard
YASKAWA TOEPYAIH6B01A HV600 AC Drive Narrow Bypass Installation & Startup