User`s manual

6-25

Setting Example

An example of stall prevention during deceleration when L3-04 is set to 1 is shown below.

Fig 6.28 Stall Prevention During Deceleration Operation

Setting Precautions

• The stall prevention level during deceleration differs depending on the inverter rated voltage and input

voltage. Refer to the following table for details.

• When using the braking option (braking resistor, braking resistor units, and braking units), be sure to set

parameter L3-04 to 0 or 3.

• When a braking option is used and the deceleration time shall be optimized (shorter than setting of C1-02/

04/06/08), L3-04 has to be set to 3.

Inverter Rated/Input Voltage Stall Prevention Level during Deceleration (V)

200 V class 380

400 V class

E1-01 ≥ 400 V 760

E1-01 < 400 V 660

Deceleration time controlled to

prevent overvoltage

Deceleration time

(set value)

Time

Output frequency