Section Safety - YASKAWA L1000A Technical Manual

8.1 Section Safety

8.1 Section Safety
Do not connect or disconnect wiring while the power is on.
Failure to comply will result in death or serious injury.
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.
Do not operate equipment with covers removed.
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 change wiring, remove covers, connectors or options cards, or attempt to service the drive with power
applied to the drive.
Failure to comply could result in death or serious injury. Disconnect all power to the drive and check for unsafe
voltages before servicing.
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.
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.
Improper equipment grounding could result in death or serious injury by contacting the motor case.
Always properly ground the motor-side grounding terminal.
Always use braking resistors that are equipped with a thermal overload relay contact, and utilize this contact to
switch off the drive in case of braking resistor overheat.
When connecting the braking resistors to the drive internal braking transistor, make sure the braking transistor will not
be overloaded with the required duty cycle and the selected resistance value. Failure to comply could result in death or
serious injury by fire from overheating resistors.
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.
350
DANGER
Electrical Shock Hazard
W ARNING
Electrical Shock Hazard
Fire Hazard
YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual