YASKAWA L1000A Quick Start Manual page 5

1 Safety Instructions and General Warnings
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Safety Warnings
WARNING
Inadvertent Movement Hazard
Clear all personnel above or inside the elevator car before performing a test run.
Failure to comply could result in death or serious injury.
Before using Leveling Distance Control, make sure that parameters for Traction Sheave Diameter (o1-20),
Deceleration Distance (S5-11) and the Stop Distance (S5-12) are set to the correct units and values.
The elevator will not stop at the designated location or an overrun will occur which may cause injury to personnel if
parameters o1-20, S5-11, and S5-12 are set incorrectly.
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 the 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 touch any terminals before the capacitors have fully discharged.
Failure to comply could result in death or serious injury.
Before wiring terminals, 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.
Do not allow unqualified personnel to use 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 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.
Always ground the motor-side grounding terminal.
Improper equipment grounding could result in death or serious injury by contacting the motor case.
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.
Never short the output circuits of the drive.
Do not short the output circuits of the drive. Failure to comply could result in death or serious injury.
When using a PM motor, make sure to block the rotor before performing work on the motor or drive output
circuit.
A PM motor generates electrical power if rotated. If connected to the drive, the drive main circuit will be charged even
if the power supply is off. Touching live parts in the drive or output circuit may result in death or serious injury.
Make sure the protective earthing conductor complies with technical standards and local safety regulations.
When an EMC filter is installed, the leakage current exceeds 3.5 mA. Therefore according to IEC/EN 61800-5-1
automatic power supply interruption in case of discontinuity of the protective earthing conductor must be provided or a
protective earthing conductor with a cross section of at least 10 mm 2 (Cu) or 16 mm 2 (Al) must be used.
YASKAWA ELECTRIC TOEP C710616 33G AC Drive L1000A - Quick Start Guide EN 5