Yaskawa J1000 Compact Vector Control Drive - Manual (Page 21)

n Magnetic Contactor (MC) Installation
Use an MC to ensure that line power to the drive can be completely shut off when necessary.
The MC should be wired so that it opens when the drive fault output is triggered.
Avoid switching the MC on the power supply side more frequently than once every 30 minutes.
Frequent switching can cause damage to the drive.
n Inspection and Maintenance
DANGER! Electrical Shock Hazard. Do not connect or disconnect wiring while the power is on. Failure to
comply will result in death or serious injury. Disconnect all power to the drive, wait at least five minutes after
all indicators are OFF, measure the DC bus voltage to confirm safe level, and check for unsafe voltages before
servicing to prevent electrical shock. 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.
CAUTION! Burn Hazard. Do not touch a hot drive heatsink. Failure to comply could result in minor or moderate
injury. Shut off the power to the drive when replacing the cooling fan. To prevent burns, wait at least 15 minutes
and make sure the heatsink has cooled to a safe level.
WARNING! Electrical Shock Hazard. Wait for at least the time specified on the drive warning label after
opening the load switch on the output side before any inspection or maintenance of permanent magnet (PM)
motors. Failure to comply could result in death or serious injury.
WARNING! Sudden Movement Hazard. Install a switch disconnect between the motor and the drive in
applications where the machine can still rotate even though the drive has fully stopped. Unpredictable
equipment operation may result in death or serious injury.
WARNING! Sudden Movement Hazard. Do not attempt to move a load that could potentially rotate the motor
faster than the maximum allowable r/min when the drive has been shut off. Unpredictable equipment operation
may result in death or serious injury.
NOTICE: Do not open and close the motor disconnect switch while the motor is running, as this may damage
the drive.
NOTICE: If the motor is coasting, make sure the power to the drive is turned on and the drive output has
completely stopped before closing the load switch.
n Wiring
All wire ends should use ring terminals for UL/cUL compliance. Use only the tools
recommended by the terminal manufacturer for crimping.
n Transporting the Drive
NOTICE: Prevent the drive from contact with salts, fluorine, bromine, phthalate ester, and other such harmful
chemicals. Never steam clean the drive. Failure to comply may cause damage to the drive components.
i.3 Application Precautions
YASKAWA ELECTRIC TOEP C710606 47C YASKAWA AC Drive – V1000 Quick Start Guide 21