Protection Function D2 Series Servo Drive User Manual
8-12 HIWIN MIKROSYSTEM CORP.
Table8.4.2.1
Parameter Name Description
To activate the software limit protection. Check it to activate.
Lower SW limit Lower software limit position.
Upper software limit position.
8.5 Over temperature protection
8.5.1 Soft-thermal protection
D2 drive has the function of estimating the motor temperature by using the software. Utilizing the current
output to estimate the motor power and then estimate the motor temperature. When it reaches the default
value of drive, the drive issues an error message of “Soft-thermal threshold reached”, enters the
emergency stop process, and finally disables the motor. Select the “Soft-thermal Accumulator” item in
“Quick view” to observe the current estimation of motor temperature.
8.5.2 Drive over temperature protection
D2 drive has the protection of drive over temperature. When the drive’s temperature reaches 80 °C, the
error message of “Amplifier over temperature” is displayed, and the motor is stopped.
8.6 Over voltage protection
When the motor is decelerating, the kinetic energy is converted into the thermal energy for the
consumption. The remaining energy charges the drive’s capacitor. When the energy exceeds the capacity
of drive’s capacitor, the energy must be consumed on the regenerative resistor in the regenerative circuit
to protect the drive. The regenerative resistor of D2 drive has the turn-on voltage of 370 Vdc and the
turn-off voltage of 360 Vdc. Users can refer to the following characteristic of each motor specification
(under the deceleration of 10 m/s
2
and the screw pitch of 10 mm) to determine whether the regenerative
resistor is needed or not. Take the motor of 750 W as an example. If the motor is operated at the highest
speed of 3,000 rpm and the load inertia is more than 0.00082 Kg-m
2
, a regenerative resistor is needed.
Refer to table 7.1.1 to select an appropriate regenerative resistor model.
To Next Page
Loading...
Need help?
General
