YASKAWA E-V Series User Manual page 10

 Operation
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• Do not connect devices (such as motors or solenoids) that greatly change
the load or devices (such as electromagnetic switches) that generate surge
voltages to the controller power line.
Failure to observe this caution may result in deterioration of the internal elements
or a blown fuse.
• Always use the servomotor and SERVOPACK in one of the specified com-
binations.
Failure to observe this caution may result in fire or malfunction.
• Conduct trial operation on the servomotor alone with the motor shaft dis-
connected 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. Fur-
thermore, secure system safety against problems such as signal line dis-
connection.
• Before starting operation with a machine connected, change the parameter
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 malfunction.
• Do not turn the power ON and OFF more than necessary.
Do not use the SERVOPACK for applications that require the power to turn ON
and OFF frequently. Such applications will cause elements in the SERVOPACK to
deteriorate.
As a guideline, at least one hour should be allowed between the power being
turned ON and OFF once actual operation has been started.
• When carrying out JOG operation (Fn002), origin search (Fn003), or
EasyFFT (Fn206), forcing movable machine parts to stop does not work for
forward overtravel or reverse overtravel. Take necessary precautions.
Failure to observe this caution may result in damage to the equipment.
• When using the servomotor for a vertical axis, install safety devices to pre-
vent workpieces from falling due to alarms or overtravels. Set the servomo-
tor 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 the tuning-less function, set the correct moment of inertia
ratio (Pn103).
Setting an incorrect moment of inertia ratio may cause machine vibration.
• Do not touch the SERVOPACK heat sinks 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 equipment 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 equipment, fire, or
injury.
CAUTION
CAUTION