Download Delta Electronics Network Device VFD-S Specifications

VFD-S Series
8 - 15
Autómatikus feszültségszabályozás (AVR)
Settings
Factory Setting: d 2
d0
AVR function enabled
d1
AVR function disabled
d2
AVR function disabled when deceleration
! AVR function automatically regulates the AC drive output voltage to the Maximum Output
Voltage (Pr.1-02). For instance, if Pr.1-02 is set at 200 VAC and the input voltage is at
200V to 264VAC, then the Maximum Output Voltage will automatically be reduced to a
maximum of 200 VAC.
! Without AVR function, the Maximum Output Voltage may vary between 180V to 264VAC,
due to the input voltage varying between 180V to 264 VAC.
! Selecting program value d2 enables the AVR function and also disables the AVR function
during deceleration. This offers a quicker deceleration.
8 - 16
Dynamic Braking Voltage
Settings
Factory Setting: d 380*
d 350 to d 450V*
Unit: 1Volt*
*Twice value for 460V class
! During deceleration, the DC-bus voltage will increase due to motor regeneration. When
DC bus voltage level exceeds the Dynamic Braking Voltage, the DC brake output pins (B1,
B2) will be activated.
8 - 17
Lower Bound of DC Braking Start-up Frequency
Settings
d0.0 to d400 Hz
Factory Setting: d 0.0
Unit: 0.1Hz
! The setting frequency is lower than Pr.8-17, the DC Braking will not be activated when
stops.
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