YASKAWA A1000 Quick Start Manual page 5

1 Safety Instructions and General Warnings
Safety Warnings
W ARNING
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.
Make sure the protective earthing conductor complies with technical standards and local safety regulations.
When an EMC filter is installed or with models CIMR-A 4A0414 and larger, the leakage current exceeds 3.5 mA.
Therefore according to IEC 61800-5-1 automatic power supply interruption in case of discontinuity of the protective
2
earthing conductor must be provided or a protective earthing conductor with a cross section of at least 10 mm (Cu) or
2
16 mm (Al) must be used.
Use appropriate equipment for residual current monitoring/detection (RCM/RCD).
This drive can cause a residual current with a DC component in the protective earthing conductor. Where a residual
current operated protective or monitoring device is used for protection in case of direct or indirect contact, always use
an RCM or RCD of type B according to IEC 60755.
Sudden Movement Hazard
Stay clear of the motor during rotational Auto-Tuning. The motor may start operating suddenly.
During automatic starting of equipment, the machine may start moving suddenly, which could result in death or serious
injury.
System 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.
YASKAWA ELECTRIC TOEP C710616 27D YASKAWA AC Drive - A1000 Quick Start Guide 5