Yaskawa Sigma-5 User Manual: Design and Maintenance - Rotary Motors - Manual (Page 9)

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Operation
Maintenance and Inspection
CAUTION
• Always use the servomotor and SERVOPACK in one of the specified combinations.
Failure to observe this caution so may result in fire or malfunction.
• Conduct trial operation 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 damage to the equipment or injury.
• 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.
Since the SERVOPACK has a capacitor in the power supply, a high charging current flows when power is
turned ON. Frequently turning power ON and OFF causes main power devices like capacitors and fuses to
deteriorate, resulting in unexpected problems.
• When using JOG operations (Fn002), search operations (Fn003), or EasyFFT operations (Fn206),
the dynamic brake function does not work for reverse overtravel or forward overtravel. Take neces-
sary precautions.
• 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 turning-less function, set to the correct moment of inertia ratio (Pn103).
Setting to an incorrect moment of inertia ratio may cause machine vibration.
• Do not touch the SERVOPACK 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 brake of the servomotor for braking.
Failure to observe this caution may result in malfunction.
• An alarm or warning may be generated if communications are executed with the host controller dur-
ing operation using SigmaWin+ or the digital operator.
If an alarm or warning is generated, the process currently being executed may be aborted and the system may
stop.
CAUTION
• Do not disassemble the SERVOPACK.
Failure to observe this caution may result in electric shock or injury.
• Do not 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.