278 YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual
6.1 Section Safety
6.1 Section Safety
Electrical Shock Hazard
Do not connect or disconnect wiring or service the drive 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. After shutting off the power, wait for at least the amount of time specified on the drive before
touching any components.
Sudden Movement Hazard
Ensure there are no short circuits between the main circuit terminals (R/L1, S/L2, and T/L3) or between the
ground and main circuit terminals before restarting the drive.
Failure to comply may result in serious injury or death and will cause damage to equipment.
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 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.
Always ground the motor-side grounding terminal.
Improper equipment grounding could result in death or serious injury by contacting the motor case.
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 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.
Remove all metal objects such as watches and rings, secure loose clothing and wear eye protection before beginning
work on the drive.
Do not remove covers or touch circuit boards while the power is on.
Failure to comply could result in death or serious injury.
Fire Hazard
Tighten all terminal screws to the specified tightening torque.
Loose electrical connections could result in death or serious injury by fire due to overheating of electrical connections.
Improperly tightened terminal screws can also cause erroneous equipment operation.
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