Download VS mini J7 USER`S MANUAL

Transcript
 Selecting Stopping Method
Selecting stopping method (n04)
Selects the stopping method suitable for application.
Setting
Description
0
Deceleration to stop
1
Coast to stop
• Deceleration to stop
Example when accel/decel time 1 is selected
ACCEL
OUTPUT
FREQUENCY TIME 1
(n16)
DECEL
TIME 1
(n17)
*
DECEL TIME 1
(n17)
*
TIME
FWD (REV)
RUN
COMMAND
ON
MIN. OUTPUT
FREQUENCY
(FREQUENCY AT
DC INJECTION BRAKING
START)
n14
(FACTORY SETTING: 1.5Hz)
DC INJECTION BRAKING
TIME AT STOP (n53)
(FACTORY SETTING: 0.5s)
* When frequency reference is changed during running.
Upon termination of the FWD (REV) run command, the motor decelerates
at the decel rate determined by the time set to deceleration time 1 (n17) and
DC injection braking is applied immediately before stop. DC injection
braking is also applied when the motor decelerates by setting frequency
reference lower than min. output frequency (n14) with FWD (or REV) run
command ON. If the decel time is short or the load inertia is large,
overvoltage (OV) fault may occur at deceleration. In this case, increase the
decel time.
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