6-15
6
When Closed Loop Vector control is selected, the stopping behavior depends on the setting of b1-05.
Fig 6.16 Deceleration to Stop in Closed Loop Vector Control
îš„Coast to Stop (b1-03=1)
When b1-03 is set to 1 and the Run command is turned off, the inverter output will be interrupted immediately
and the motor will coast to stop. The time until the motor stands depends on the inertia and load situation.
Fig 6.17 Coast to Stop
INFO
After the stop command is input, Run commands are ignored until the Minimum Baseblock Time
(L2-03) has elapsed.
RUN
OFF ON
Analog
frequency
reference
0
E1-09
b1-05=0
Run at frequency
reference
Initial excitation
Baseblock
Zero speed
control
Baseblock
The Run command turns
OFF and zero speed
control starts when the
motor speed feedback
drops below b2-01.
b2-03 b2-04
b1-05=1
Coast to stop
Baseblock b2-03 b2-04 Baseblock
Initial excitation
Zero speed
control
The frequency reference drops
to less than E1-09 and zero
speed control starts when the
motor speed feedback drops
below b2-01.
b1-05=2
Run at minimum
frequency E1-09
Baseblock b2-03
Initial
excitation
The Run command turns OFF
and zero speed control starts
when the motor speed feedback
drops below b2-01.
The Run command turns OFF and
zero speed control starts when
motor speed feedback drops below
b2-01.
Zero speed
control
Zero speed
control
b2-04
Baseblock
Baseblock b2-03
b2-04 Baseblock
Initial excitation
b1-05=3
Zero Speed
Operation
f
ref
f
out
f
out
f
out
f
out
ON OFF
Run command
Output frequency
Inverter output frequency interrupted
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