Safety Warnings
• 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 productmust not be modified.
• Do not touch any terminals before the capacitors have fully discharged.
Failure to comply could result in death or serious injury. Before wiring terminals, disconnect
all power to the equipment. The internal capacitor remainscharged even after the power
supply is turned off. The charge indicator LED will extinguishwhen the DC bus voltage is
below 50 Vdc. To prevent electric shock, wait at least five minutesafter all indicators are off
and measure the DC bus voltage level to confirm safe level.
• 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 authorizedpersonnel familiar with installa-
tion, 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.
• 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 eyeprotection before beginning work
on the drive.
• Never short the output circuits of the drive.
Do not short the output circuits of the drive. Failure to comply could result in death or
seriousinjury.
• Stay clear of the motor during rotational Auto-Tuning. The motor may start operatingsud-
denly.
During automatic starting of equipment, the machine may start moving suddenly, which
couldresult in death or serious injury.
Electrical Shock Hazard
Sudden Movement Hazard
1 Safety Instructions and General Warnings
4