Vacon NX Series Applications Manual page 287

PARAMETER DESCRIPTIONS
Par. ID510
(ID512; ID514)
Par. ID509
(ID511; ID513)
Fig. 71: Ramp speed scaling between prohibit frequencies
519 FLUX BRAKING CURRENT 234567 (2.4.13)
Use this parameter to set the current level for the flux braking.
The value setting range depends on the used application.
520 FLUX BRAKE 234567 (2.4.12)
Use this parameter to enable the Flux Braking function.
As an alternative to DC braking, you can use flux braking. Flux braking increases the braking
capacity in conditions where additional brake resistors are not necessary.
When braking is necessary, the system decreases the frequency and increases the flux in the
motor. This increases the capacity of the motor to brake. The motor speed is controlled
during braking.
You can enable and disable Flux Braking.
Table 155: Selections for parameter ID520
Selection
Selection name
number
0 Flux braking OFF
1 Flux braking ON
CAUTION!
Use the braking only intermittently. Flux braking converts energy into heat and can
cause damage to the motor.
521 MOTOR CONTROL MODE 26 (2.6.12)
Use this parameter to set the AC drive control mode.
LOCAL CONTACTS: HTTP://DRIVES.DANFOSS.COM/DANFOSS-DRIVES/LOCAL-CONTACTS/
f [Hz]
out
Par. ID518=0.2
Par. ID518=1.2
t [s]
Description
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