5 ac motor braking, Ac motor braking, Function library – Lenze E82xVxxxKxxxxx User Manual
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Function library
Acceleration, deceleration, braking, stopping
AC motor braking
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EDS82EV903 EN 3.0
10.6.5
AC motor braking
Description
With the parameter set changeover in dependence of the DC−bus voltage, the AC motor
braking can be used as alternative for DC braking (DCB). The AC motor braking is a braking
method without external brake resistor for the control mode V/f characteristic control
with linear characteristic".
)
Note!
The AC motor braking can only be used with the control mode V/f
characteristic control with linear characteristic" (C0014 = 2).
ƒ
With mains voltages up to approx. AC 400 V shorter braking times can be reached
than with the DC injection braking.
ƒ
The braking times for braking via an external brake resistor are approx. 33 % shorter
than for AC motor braking.
Codes for parameter setting
Code
Possible settings
IMPORTANT
No.
Name
Lenze Selection
C0988
*
DC−bus voltage
threshold for
DC−bus voltage
control
0
0
= changeover of
the parameter set
via DC−bus
voltage
deactivated
{1 %}
200
l
It is always changed over
between PAR1 and PAR2
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Changeover of the parameter
set via terminal, bus or PC is
not possible if C988 > 0!
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