Yaskawa L1000E AC Drive CIMR-LE†A - Manual (Page 9)

i Preface & General Safety
YASKAWA TOEPYAIL1E01A YASKAWA AC Drive L1000E Quick Start Guide 9
W ARNING
Sudden Movement Hazard
The drive system or elevator may start unexpectedly upon application of power, resulting in death or serious
injury.
• Clear all personnel from the drive, motor, and machine area before applying power.
• Secure covers, couplings, shaft keys, and machine loads before applying power to the drive.
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.
System may start unexpectedly upon application of power when the Auto-restart function is enabled resulting in
death or serious injury.
Use care when enabling Auto-restart as this function may cause unintended start of the elevator.
Use parameter S1-12 to enable/disable automatic switching of the Motor Contactor Control output signal
during Auto-Tuning.
When using setting S1-12 = 1, ensure that the multi-function output terminals are properly wired and in the correct
state before setting parameter S1-12.
Failure to comply could result in damage to the drive, serious injury or death.
Electrical Shock Hazard
Do not attempt to modify or alter the drive in any way not explained in this manual.
Yaskawa is not responsible for damage caused by modification of the product made by the user. Failure to comply
could result in death or serious injury from operation of damaged equipment.
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.
When a drive is running a PM motor, voltage continues to be generated at the motor terminals after the drive is
shut off while the motor coasts to stop. Take the precautions described below to prevent shock and injury:
• In applications where the machine can still rotate even though the drive has fully stopped a load, install a switch to
the drive output side to disconnect the motor and the drive.
• Do not allow an external force to rotate the motor beyond the maximum allowable speed or to rotate the motor when
the drive has been shut off.
• Wait for at least the time specified on the warning label after opening the load switch on the output side before
inspecting the drive or performing any maintenance.
• Do not open and close the load switch while the motor is running, as this can damage the drive.
If the motor is coasting, make sure the power to the drive is turned on and the drive output has completely stopped
before closing the load switch.
Do not connect or disconnect wiring to the drive or motor 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. The charge indicator LED will extinguish
when the DC bus voltage is below 50 Vdc. To prevent electric shock, wait at least five minutes after all indicators are
OFF and measure the DC bus voltage level to confirm safe level.