Delta Electronics Network Device VFD-S Spezifikationen PDF herunterladen (Seite 72)

VFD-S Series

5-45

reset/restart operation after any fault has occurred. When enabled, the AC drive will

restart with speed search, which starts at the Master Frequency.

8 - 15 Automatic Voltage Regulation (AVR) Factory Setting: d 2

Settings d 0 AVR function enabled

d 1 AVR function disabled

d 2 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 Factory Setting: d 380*

Settings 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 Factory Setting: d 0.0

Settings d0.0 to d400 Hz 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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Delta Electronics Network Device VFD-S Spezifikationen Seite 72