
4-102
07-06
DC Injection Braking Start Frequency Default: 1.5
Range
【
0.0–10.0
】
: Hz
DC Injection braking functionality depends on the selected control mode (00-00), please refer to the description
below for each control mode.
V/f or SLV Control mode (00-00 = 0, 2):
DC Injection Brake Start Frequency parameter (07-06) is the level the output frequency has to reach before DC
braking injection function is de-activated at start and activated at stop.
DC Injection Brake Level (07-07) is set as percentage of the AC Drive rated current. Increasing this level will increase
the amount of heat generated by the motor windings. Do not set this parameter higher than the level necessary to
hold the motor shaft.
DC Injection Brake Time at Stop (07-08) specifies the time DC injection braking is active during a stop operation. DC
injection braking at stop is disabled when parameter 07-08 is set to 0 sec.
07 - 16
07 - 08
Note
:
07-06 is braking start frequency
01-08 is minimum frequency
DC
injection
braking
Output
frequency
time
DC
injection
braking
07-06 or 01-08
Note:
When 07-06 < 01-08, DC injection braking starting frequency becomes frequency set in parameter 01-08.
PMSLV Control Mode (00-00=5):
Short-circuit braking is available only in this control mode and functions by switching the IGBts to produce braking
torque.
Short Circuit Braking Start Frequency parameter (07-06) is the level the output frequency has to reach before Short
Circuit Braking function is de-activated at start. The same level is used to activate Short Circuit Braking when the
output frequency falls below this level.
DC Injection Brake Level (07-07) is set as percentage of the AC Drive rated current. Increasing this level will increase
the amount of heat generated by the motor windings. Do not set this parameter higher than the level necessary to
hold the motor shaft.
Start Short-circuit Braking Time
(07-34) specifies the time short-
circuit braking is active at start. Short
Circuit Braking at stop is disabled
when parameter 07-34 is set to 0
sec.
Stop Short-circuit Braking Time
(07-35) specifies the time short-
circuit braking is active during a stop
operation. Start Short-circuit Braking
Time at stop is disabled when
parameter 07-35 is set to 0 sec.
07 - 34
07 - 35
Note
:
07-06 is braking start frequency
01-08 is minimum frequency
Short-
Circuit
braking
Output
frequency
time
07-06 or 01-08
Short-
Circuit
braking