Yaskawa A1000 6-Phase/12-Pulse Input - Manual (Page 27)

5 Troubleshooting
NOTICE
Refer to the A1000 Technical Manual SIEP C710616 41 for information on Troubleshooting and complete product
instructions necessary for proper installation, set-up, troubleshooting and maintenance.
The A1000 Technical Manual is posted on the Yaskawa website, www.yaskawa.com.
WARNING
Electrical Shock Hazard
Do not connect or disconnect wiring while the power is on.
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; after 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 illustrate drives without covers or safety shields to display 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 touch 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; after all indicators are OFF, measure for unsafe voltages to confirm
the drive is safe prior to servicing.
After blowing a fuse or tripping a GFCI, do not attempt to restart the drive or operate peripheral devices until five
minutes pass and CHARGE lamp is OFF.
Failure to comply could result in death, serious injury, and damage to the drive.
Check wiring and peripheral device ratings to identify the cause of trips.
Contact your supplier if the cause cannot be identified.
Installation, maintenance, inspection and servicing must be performed only by authorized personnel familiar with installation,
adjustment and maintenance of AC drives.
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.
Do not remove covers or touch circuit boards while the power is on.
Failure to comply could result in death or serious injury.
5 Troubleshooting
YASKAWA TOEP YAIA1U 02A YASKAWA AC Drive – A1000 6-Phase/12-Pulse Input Installation Manual 27