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3 Specifications
G5-series Linear Motors/Servo Drives With Built-in EtherCAT Communications
3-2 Overload Characteristics (Electronic Thermal
Function)
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If a constant force command is continuously applied after a period of time equivalent to 3 or more times
the overload time constant with the force command value set to 0, the overload time t [s] will be:
t [s] = –Overload time constant [s] x log
e
(1 – Overload level [%]/Force command [%])
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Precautions for Correct UsePrecautions for Correct Use
• The overload protection function is not designed to provide protection against errors caused
by heat generated by the motor.
• Therefore, if you set the Motor Overload Curve Selection (3929 hex) value too high, the Motor
Coil Unit may burn. Check in the actual operating environment to be sure that no problem
occurs due to heat generated by the motor or other causes before using the Servo Drive.
The overload time constant [s] depends on the Linear Motor. The standard overload level is
100%.
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