YASKAWA FSDrive-MV1S Instructions Manual page 130

Deceleration to Stop
If the Stop Command is input (i.e., the Run Command is turned off) when b1-03 is set to 0, the motor deceler-
ates to a stop according to the deceleration time that has been set. (Factory setting: C1-02 (Deceleration Time
1))
If the output frequency when decelerating to a stop falls below b2-01, the DC injection brake will be applied
using the DC current set in b2-02 only for the time set in b2-04.
For deceleration time settings, refer to page 6-10 Setting Acceleration and Deceleration Times.
Output frequency
The operation after stopping depends on the setting of b1-05 when flux vector control is selected (A1-02 = 3).
Run Command off
Frequency reference
via analog input
(frequency reference)
(Coast)
b1-05=2
(Run on E1-09)
-6
6
Run command
On
Decelerates to stop at
deceleration time
Fig 6.3 Deceleration to Stop
0
b1-05=0
Injection brake
time at start
b2-03
Baseblock
b1-05=1 Injection brake
time at start
Baseblock
b2-03
Injection brake
time at start
Baseblock
b2-03
b1-05=3
Injection brake
(Zero-speed)
time at start
Baseblock
b2-03
Fig 6.4 Deceleration to Stop (for Flux Vector Control)
Off
DC injection brake time
when stopping (b2-04)
On
Zero speed
control
b2-04
Frequency reference drops to less
than E1-09 and zero-speed control
Zero speed
starts when motor speed drops to
control
b2-01.
b2-04
Run Command turns off
and zero-speed control start
when motor speed drops to b2-01.
Run Command turns off
and zero-speed control start
when motor speed drops to b2-01.
Zero speed control
b2-04
DC injection brake
Off
E1-09
Run Command turns off
and zero-speed control start
when motor speed drops to b2-01.
Baseblock
Baseblock
Zero speed control
Baseblock
b2-04
Baseblock