Dc Injection Braking Stop - YASKAWA V1000 Series Installation & Start-Up Manual

baseblock time (L2-03). Once the minimum baseblock time has expired, the drive will inject
DC current into the motor windings to lock the motor shaft. The stopping time will be
reduced as compared to coast to stop. The level of DC Injection current is set by parameter
b2-02 (default = 50%). The time for DC Injection Braking is determined by the value set to
b2-04 and by the output frequency at the time the run command is removed.
Note: DC Injection braking cannot be selected as a stopping method in PM Open Loop Vector Control.
Figure 4.19
Run Command
Output Frequency
DC Injection Braking
Motor Speed
*See Figure 4.18
Note: Extend baseblock time (L2-03) if overcurrent (OC) occurs on stop command input.
Coast to Stop with Timer: Ignoring a Run Command Input within the
■
Deceleration Time: b1-03 = 3
When b1-03 = 3, a stop command interrupts drive output and the motor coasts to stop. The
drive will not accept the next run command until time "t" has passed. Time "t" is determined
by the output frequency at the moment the stop command was entered and the deceleration
time set to the drive according to
YASKAWA ELECTRIC TOEP C710606 09B YASKAWA AC Drive V1000 Installation & Start-Up Manual
ON
DC Injection Braking Time
b2-04 10
b2-04
10%
Figure 4.19 DC Injection Braking Stop
Figure 4.20.
4.6 Basic Drive Setup Adjustments
OFF
Minimum Baseblock Time (L2-03)
DC Injection Braking
DC Braking
Time at Stop
Current (b2-02)
(b2-04)*
Output frequency when
stop command was entered
100%
(Max Output Frequency)
4
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