YASKAWA L1000A Technical Manual page 320

7.1 Section Safety
Never connect or disconnect the motor from the drive while the drive is outputting voltage. Improper
sequencing of output motor circuits could result in damage to the drive.
Do not connect electromagnetic switches or magnetic contactors to the output motor circuits without proper
sequencing. Do not open the main circuit between the drive and the motor while the PM motor is rotating.
Observe proper electrostatic discharge procedures (ESD) when handling the drive and circuit boards.
Failure to comply may result in ESD damage to the drive circuitry.
Do not connect or disconnect the motor from the drive while the drive is outputting voltage.
Improper equipment sequencing could result in damage to the drive.
Follow cooling fan replacement instructions. The cooling fan cannot operate properly when it is installed
incorrectly and could seriously damage the drive.
Follow the instructions in this manual to replace the cooling fan, making sure that the label is on top before inserting
the cooling fan into the drive. To ensure maximum useful product life, replace both cooling fans when performing
maintenance.
Do not connect the AC power line to the output motor terminals of the drive.
Failure to comply could result in death or serious injury by fire as a result of drive damage from line voltage
application to output terminals. could result in death or serious injury by fire as a result of drive damage from line
voltage application to output terminals.
Do not use unshielded cable for control wiring.
Failure to comply may cause electrical interference resulting in poor system performance. Use shielded, twisted-pair
wires and ground the shield to the ground terminal of the drive.
Do not modify the drive circuitry.
Failure to comply could result in damage to the drive and will void warranty.
Yaskawa is not responsible for any modification of the product made by the user. This product must not be modified.
Check all the wiring to ensure that all connections are correct after installing the drive and connecting any other
devices.
Failure to comply could result in damage to the drive.
Make sure wiring to motor terminals U, V, and W connect the corresponding U/T1, V/T2, and W/T3 output
terminals on the drive.
Wiring to the wrong terminals will reverse the phase order, causing the motor to operate in reverse. This could cause
the elevator car to fall when attempting to go up.
Never use a magnet contactor on the input side of the drive.
Refrain from switching an input contactor more often than once every 30 minutes. Normally the drive I/O should be
used to stop and start the motor.
Do not operate damaged equipment.
Failure to comply could result in further damage to the equipment.
Do not connect or operate any equipment with visible damage or missing parts.
320
NOTICE
Equipment Hazard
YASKAWA ELECTRIC SIEP C710616 38F YASKAWA AC Drive - L1000A Technical Manual