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7 dc braking, 1 dc braking – Toshiba VF-FS1 User Manual

Page 119

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E6581381

F-23

6

6.7

DC braking

6.7.1 DC braking

H

: DC braking starting frequency

H

: DC braking current

H

: DC braking time

• Function

A large braking torque can be obtained by applying a direct current to the motor. These parameters
set the direct current to be applied to the motor, the application time and the starting frequency.

[Parameter setting]

Title

Function

Adjustment range

Default setting

H

DC braking starting frequency

0.0-HJ (Hz)

0.0

H

DC braking current

0-100 (%) / (A)

50

H

DC braking time

0.0- 20.0 (sec)

1.0

Time [s]

DC braking starting frequency

H

DC braking current

H

DC braking time H

Output frequency [Hz]

DC braking

Operation signal (F or R)

ON
OFF

Output current [A]

0

0

Set frequency

Note1: During DC braking, the overload protection sensitivity of the inverter increases. The DC braking

current may be adjusted automatically to prevent tripping.

Note 2: During DC braking, the carrier frequency is 6kHz irrespective of the setting of parameter H

(PWM carrier frequency).