6-6
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.
Fig 6.3 Deceleration to Stop
The operation after stopping depends on the setting of b1-05 when flux vector control is selected (A1-02 = 3).
Fig 6.4 Deceleration to Stop (for Flux Vector Control)
Decelerates to stop at
deceleration time
Output frequency
Run command
On
Off
DC injection brake time
when stopping (b2-04)
DC injection brake
Injection brake
time at start
b2-03
Zero speed
control
b2-04
Baseblock
b2-03
b2-04
b2-03
b2-04
b2-03 b2-04
Run Command off
On Off
Frequency reference
via analog input
0
E1-09
b1-05=0
(frequency reference)
Run Command turns off
and zero-speed control start
when motor speed drops to b2-01.
b1-05=1
(Coast)
b1-05=2
(Run on E1-09)
b1-05=3
(Zero-speed)
Injection brake
time at start
Injection brake
time at start
Injection brake
time at start
Baseblock
Baseblock
Baseblock
Baseblock
Baseblock
Baseblock
Baseblock
Zero speed
control
Zero speed control
Zero speed control
Frequency reference drops to less
than E1-09 and zero-speed control
starts when motor speed drops to
b2-01.
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.
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