YASKAWA SERVOPACK Sigma 7W Series Product Manual page 23

 The Move on Machine Coordinates (MVM) instruction temporarily performs positioning to a
coordinate position in the machine coordinate system. Therefore, unexpected operation may
occur if the instruction is executed without confirming the origin position in the machine coordi-
nate system first. When you use the MVM instruction, always confirm that the machine origin is
in the correct position before you begin operation.
There is a risk of injury or device damage.
 When you adjust the gain during system commissioning, use a measuring instrument to monitor
the torque waveform and speed waveform and confirm that there is no vibration.
If a high gain causes vibration, the Servomotor will be damaged quickly.
 Do not frequently turn the power supply ON and OFF. After you have started actual operation,
allow at least one hour between turning the power supply ON and OFF (as a guideline).
Do not use the product in applications that require the power supply to be turned ON and OFF
frequently.
The elements in the SERVOPACK will deteriorate quickly.
 An alarm or warning may occur if communications are performed with the host controller during
MPE720 or SigmaWin+ operation.
If an alarm or warning occurs, it may interrupt the current process and stop the system.
 After you complete trial operation of the machine and facilities, use the MPE720 or the Sig-
maWin+ to create a backup file of the SERVOPACK parameters. You can use them to reset the
parameters after SERVOPACK replacement.
If you do not copy backed up parameter settings, normal operation may not be possible after a
faulty SERVOPACK is replaced, possibly resulting in machine or equipment damage.
 Maintenance and Inspection Precautions
 Do not change any wiring while power is being supplied.
There is a risk of electric shock or injury.
 Wiring and inspections must be performed only by qualified engineers.
There is a risk of electric shock or product failure.
 Wait for six minutes after turning OFF the power supply and then make sure that the CHARGE
indicator is not lit before starting wiring or inspection work. Do not touch the power supply ter-
minals while the CHARGE lamp is lit after turning OFF the power supply because high voltage
may still remain in the SERVOPACK.
There is a risk of electric shock.
 Before you replace a SERVOPACK, back up the settings of the SERVOPACK parameters. Copy
the backed up parameter settings to the new SERVOPACK and confirm that they were copied
correctly.
If you do not copy backed up parameter settings or if the copy operation is not completed normally,
normal operation may not be possible, possibly resulting in machine or equipment damage.
 Do not attempt to disassemble or repair the SERVOPACK.
There is a risk of electric shock, injury, or device damage.
CAUTION
NOTICE
DANGER
WARNING
CAUTION
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