Yaskawa Sigma-5 Large Capacity Users Manual: Design and Maintenance-Rotary Motors-Mechatrolink-II Communication Reference - Manual (Page 12)

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Operation
Maintenance and Inspection
CAUTION
• Always use the servomotor, the SERVOPACK, and the converter in one of the specified combina-
tions.
Failure to observe this caution may result in fire or malfunction.
• Conduct trial operations on the servomotor alone, with the motor shaft disconnected from the
machine to avoid accidents.
Failure to observe this caution may result in injury.
• During trial operation, confirm that the holding brake works correctly. Furthermore, secure system
safety against problems such as signal line disconnection.
Failure to observe this caution may result in injury or damage to the product.
• Before starting operation with a machine connected, change the settings to match the parameters
of the machine.
Starting operation without matching the proper settings may cause the machine to run out of control or mal-
function.
• Do not frequently turn power ON and OFF.
• Frequently turning power ON and OFF causes elements inside the SERVOPACK and the converter to
deteriorate. Do not use the servo drive with an application that requires frequently turning power ON and
OFF.
• After the actual operation starts, the allowable interval for turning power ON and OFF is one hour or
longer.
• When using JOG operations (Fn002) origin search operations (Fn003), or EasyFFT operations
(Fn206), the dynamic brake function does not work for reverse overtravel or forward overtravel.
Take necessary precautions.
Failure to observe this caution may result in damage to the product.
• When using the servomotor for a vertical axis, install safety devices to prevent workpieces from fall-
ing due to alarms or overtravels. Set the servomotor so that it will stop in the zero clamp state when
overtravel occurs.
Failure to observe this caution may cause workpieces to fall due to overtravel.
• When not using tuning-less function, set to the correct moment of inertia ratio (Pn103).
Setting to an incorrect moment of inertia ratio may cause vibration.
• Do not touch the SERVOPACK and the converter heatsinks, regenerative resistor, or servomotor
while power is ON or soon after the power is turned OFF.
Failure to observe this caution may result in burns due to high temperatures.
• Do not make any extreme adjustments or setting changes of parameters.
Failure to observe this caution may result in injury or damage to the product due to unstable operation.
• When an alarm occurs, remove the cause, reset the alarm after confirming safety, and then resume
operation.
Failure to observe this caution may result in damage to the product, fire, or injury.
• Do not use the holding brake of the servomotor for braking.
Failure to observe this caution may result in malfunction.
• An alarm or warning may occur if communications are performed with the host controller while the
SigmaWin+ or Digital Operator is operating.
If an alarm or warning occurs, it may stop the current process and stop the system.
CAUTION
• Do not disassemble the SERVOPACK and the converter.
Failure to observe this caution may result in electric shock or injury.
• Do not attempt to change wiring while the power is ON.
Failure to observe this caution may result in electric shock or injury.
• When replacing the SERVOPACK, resume operation only after copying the previous SERVOPACK
parameters to the new SERVOPACK.
Failure to observe this caution may result in damage to the product.
• Be sure to eliminate static electricity before operating buttons and switches inside the plastic cover.
Failure to observe this caution may result in damage to the product.