CDE360 Vector Control AC Drive Chapter 6 Parameters Description
-
102
-
b1.12
①
Range: 0.0~100.0
Default: 0.0
Start DC brake
time
Unit: Sec
This parameter specifies DC brake time when drive startup. If the startup
DC braking time is 0, the drive starts directly without DC braking.
b1.13
Range: 0.00~
b0.00
Default: 0.00
Initial frequency
of stop DC brake
Unit: Hz
During the process of decelerating to stop, the drive starts DC braking
when the running frequency is lower than the value set in F6-11.
b1.14
Range: 0.0~100.0
Default: 0.0
Stop DC brake
waiting time
Unit: s
When the running frequency decreases to the initial frequency of stop DC
braking, the drive stops output for a certain period and then starts DC
braking. This prevents faults such as overcurrent caused due to DC
braking at high speed. About the detail please see figure below.
b1.15
Range: 0~100
Default: 20
Stop DC brake
current
Unit: %
This parameter specifies the output current at DC braking when drive is
stopping. it is a percentage relative to the base value, the base value is
motor rate current. If the parameter value is bigger than drive rate current
then the output brake current will be limited by drive rate current.
b1.16
Range: 0.0~100.0
Default: 0.0
Stop DC brake
time
Unit: s
This parameter specifies the holding time of DC braking. If it is set to 0,
DC braking is invalid.
In deceleration stopping(
b1.10
set to 0), if the output frequency is reduced to the set value of
b1.13
, then drive enter DC brake process. At first, the drive output close PWM(the close PWM time
is determined by
b1.14
), and then drive enter the DC brake mode. The brake current is determined
by
b1.15
, the duration is determined by
b1.16
. If
b1.16
is set to 0, then stop DC brake is invalid,
drive will stop according to time. Specific braking process is shown in the following figure.
Note:
1. The appropriate stop DC brake waiting time could decrease the fault when motor is running
with high speed and start DC braking.
2. The larger the braking current is, the greater the braking torque greater, but too much braking
current and long braking time may damage the motor and drive.