Yaskawa AC Drive-L1000E Safety Precautions - Manual (Page 13)

5 Electrical Installation
YASKAWA TOEP YAIL1E 02A YASKAWA AC Drive - L1000E Safety Precautions 13
Sudden Movement Hazard
Install a properly controlled contactor on the input-side of the drive for applications where power should be
removed from the drive during a fault condition.
Improper equipment sequencing could result in death or serious injury.
Comply with proper wiring practices.
The motor may run in reverse if the phase order is backward, causing incorrect elevator direction movement and injury
to personnel.
Connect motor input terminals U, V and W to drive output terminals U/T1,V/T2, and W/T3. The phase order for the
drive and motor should match.
NOTICE
Equipment Hazard
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.
Never connect or disconnect the motor from the drive while the drive is outputting voltage.
Improper equipment sequencing could result in damage to the drive.
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.
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.
Do not check or test control circuit signals while the drive is running.
Improper use of test equipment could result in damage to the drive circuitry by short circuit.
Do not connect control circuit ground terminals to the drive enclosure.
Improper drive grounding can cause control circuit malfunction.
Before applying power to the drive, use power-off resistance checks to check for short-circuits between (R/L1, S/
L2, and T/L3) or between main circuit terminals and ground.
Failure to comply may result in damage to the drive from short-circuit.
Prevent foreign matter such as metal shavings or wire clippings from falling into the drive during drive
installation and project construction.
Failure to comply could result in damage to the drive. Place a temporary cover over the top during installation. Be sure
to remove the temporary cover before start-up, as the cover will reduce ventilation and cause the unit to overheat.
Improper application of devices on drive output circuits can damage the drive.
Do not connect unapproved LC or RC interference suppression filters, capacitors, ground fault circuits, or overvoltage
protection devices to the output of the drive.
To get the full performance life out of the electrolytic capacitors and circuit relays, refrain from switching the
drive power supply off and on more than once every 30 minutes.
Frequent use can damage the drive. Use the drive to stop and start the motor.
W ARNING