Yaskawa AC Drive Z1000 HVAC - Manual (Page 12)

i.3 Electrical Installation Safety
NOTICE
Refer to the Z1000 User Manual TOEPC71061645 on the CD-ROM packaged with the product for more information
regarding Electrical Installation and for complete product instructions necessary for proper installation, set-up,
troubleshooting and maintenance. CD-ROM part number TOECC71061615.
WARNING
Electrical Shock Hazard
Do not connect or disconnect wiring while the power is on.
Failure to comply may result in death or serious injury.
Before servicing, disconnect all power to the equipment. The internal capacitor remains charged even after the power supply
is 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 confirm
the drive is safe prior to servicing.
Do not operate equipment with covers removed.
Failure to comply could result in death or serious injury.
The diagrams in this section may show drives without covers or safety shields to show details. Be sure to reinstall covers or
shields before operating the drives and run the drives according to the instructions described in this manual.
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 automatically
disconnected in case of discontinuity of the protective earthing conductor or a protective earthing conductor with a cross-
section of at least 10 mm
2 (Cu) or 16 mm 2 (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 current
operated protective or monitoring device is used for protection in case of direct or indirect contact, always use a type B GFCI
according to IEC/EN 60755.
Always ground the motor-side grounding terminal.
Improper equipment grounding could result in death or serious injury by contacting the motor case.
Do not perform work on the drive while wearing loose clothing, jewelry or without eye protection.
Failure to comply could result in death or serious injury.
Remove all metal objects such as watches and rings, secure loose clothing, and wear eye protection before beginning work
on the drive.
Do not remove covers or touch circuit boards while the power is on.
Failure to comply could result in death or serious injury.
Do not allow unqualified personnel to perform work on the drive.
Failure to comply could result in death or serious injury.
Installation, maintenance, inspection, and servicing must be performed only by authorized personnel familiar with
installation, adjustment, and maintenance of AC drives.
Do not touch any terminals before the capacitors have fully discharged.
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 supply
is 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 confirm
the drive is safe prior to servicing.
i.3 Electrical Installation Safety
12 YASKAWA ELECTRIC TOEP YAIZ1U 01A YASKAWA AC Drive – Z1000 Safety Precautions