Yaskawa Z1000 AC Drive HVAC - Manual (Page 100)

4.1 Section Safety
DANGER
Electrical Shock Hazard
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.
Failure to comply will result in death or serious injury.
WARNING
Electrical Shock Hazard
Do not operate equipment with covers removed.
Failure to comply could result in death or serious injury.
The diagrams in this section may include drives without covers or safety shields to illustrate details. Be sure to reinstall
covers or shields before operating the drives and run the drives according to the instructions described in this manual.
Do not remove covers or touch circuit boards while the power is on.
Failure to comply could result in death or serious injury.
Prepare a separate holding brake.
Wire the holding brake so when a fault occurs, it is activated by an external sequence and shuts the power off or triggers an
emergency switch. Failure to comply could result in death or serious injury.
Fire Hazard
Properly handle the HOA keypad battery.
Improper use of the battery may cause fire by explosion and personal injury. Correctly install the battery, paying attention
to polarity (+/-). Do not attempt to charge the battery or improperly disassemble the HOA keypad.
NOTICE
Do not heat or throw the battery into fire.
The battery remains in use even when power to the drive has been shut off. Be sure to also remove the battery in the HOA
keypad when the drive will be shut off for long periods of time. A dead battery left inside the HOA keypad may leak and
damage the keypad and drive. Be sure to replace the battery with a new one immediately after the expected lifespan has
passed or when the “bAT” error is displayed on the HOA keypad.
Be sure to observe the Perchlorate Best Management Practices (BMPs).
BMPs apply to primary lithium (manganese dioxide) coin batteries sold or distributed in California. Perchlorate Material
special handling may apply, please refer to: www.dtsc.ca.gov/hazardouswaste/perchlorate.
4.1 Section Safety
100 YASKAWA ELECTRIC TOEP YAIZ1U 03A YASKAWA AC Drive – Z1000 User Manual