Section Safety; Section Safety - YASKAWA L1000V Technical Manual

7.1 Section Safety

7.1

Section Safety

Do not connect or disconnect wiring while the power is on.
Failure to comply will 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, and then measure the DC bus voltage level to confirm it has reached a safe level.
Do not connect or disconnect wiring to the drive or motor while the power is on. Failure to comply will 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 at least five minutes after all indicators are OFF and measure the DC bus voltage level to confirm
safe level.
Do not connect or disconnect wiring while the power is on.
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.
Do not attempt to modify or alter the drive in any way not explained in this manual.
Yaskawa is not responsible damage caused by modification of the product made by the user. Failure to comply could
result in death or serious injury from operation of damaged equipment.
Improper equipment grounding could result in death or serious injury by contacting ungrounded electrical
equipment.
Always ground the ground terminal. (200 V Class: Ground to 100 Ω or less, 400 V Class: Ground to 10 Ω or less)
motor case.
Verify motor wiring bare wire ends do not contact the drive chassis or enclosure when wiring drive terminals U/
T1, V/T2, W/T3.
Failure to comply may result in serious injury or death due to electrical shock.
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 allow unqualified personnel to use the equipment.
Failure to comply could result in death or serious injury.
Maintenance, inspection, and replacement of parts must be performed only by authorized personnel familiar with
installation, adjustment and maintenance of AC drives.
Switch off and lock power supply and lock the switch before wiring terminals.
Failure to comply could result in serious injury or death.
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DANGER
Electrical Shock Hazard
W ARNING
Electrical Shock Hazard
YASKAWA EUROPE SIEP YASKAWA AC Drive L1000V Technical Manual