YASKAWA L1000V Technical Manual page 41

3.1 Section Safety
NOTICE
Fire Hazard
When the input voltage is 480 V or higher or the wiring distance is greater than 100 meters, pay special
attention to the motor insulation voltage or use a drive-rated motor.
Failure to comply could lead to motor winding failure.
Do not connect control circuit ground terminals to the drive enclosure.
Improper drive grounding can cause control circuit malfunction.
Do not use the negative DC bus terminal "-" as a ground terminal. This terminal is at high DC voltage potential.
Improper wiring connections could damage the drive.
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.
Insulate shields with heat shrink tubing or tape to prevent contact with other signal lines and equipment.
Improper wiring practices could result in drive or equipment damage due to short circuit.
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YASKAWA EUROPE SIEP YASKAWA AC Drive L1000V Technical Manual 41