User manual

19 References
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 Warnings (warning functions)
Item Overview/condition
Warning check
function
WNG output When a warning generates, the WNG output will turn ON.
Excessive position
deviation warning
Set the condition under which an excessive position deviation warning
generates, as an amount of rotation of the motor shaft.
Overvoltage warning Set the voltage at which an overvoltage warning generates.
Undervoltage warning Set the voltage at which an undervoltage warning generates.
Overheat warning Set the temperature at which an overheat warning generates.
Overload warning Set the condition under which an overload warning generates.
Warning detection
condition setting
Overspeed warning Set the speed at which an overspeed warning generates.
Excessive position
deviation
• The deviation between the command position and actual position at the
motor output shaft exceeded the value set in the excessive position
deviation warning parameter [APP-3-01]. (Initial value: 9 rev)
• The load is large or the acceleration/deceleration time is short.
Overheat The internal temperature of the driver exceeded the value set in the
overheat warning parameter [APP-3-04]. [Initial value: 80 °C (176 °F)]
Overvoltage • The voltage of the main power supply exceeded the value set in the
overvoltage warning parameter [APP-3-02]. (Initial value: 390 V)
• A large inertial load was stopped abruptly, or up/down operation was
performed without connecting a regeneration unit.
Main power supply The S-ON input was turned ON when the main power was cut off.
Undervoltage • The DC voltage of the main power supply became lower than the value
set in the undervoltage warning parameter [APP-3-03]. (Initial value:
125 V)
• The main power was cut off momentarily or the voltage became low.
Low battery voltage The battery discharged and its voltage dropped to 3.2 V or below.
Overload • The generated torque exceeded the value set in the overload warning
parameter [APP-3-05]. (Initial value: 90%)
• The load is lar
g
e or the acceleration/deceleration time is short.
Overspeed The detected motor speed exceeded the value set in the overspeed
warning parameter [APP-3-06]. (Initial value: 5800 r/min)
Absolute position loss The battery or encoder was disconnected.
Descriptions of
warnings
Electronic gear setting
error
The resolution set by the electronic gear and encoder output electronic
gear became outside the specified range.