3-70
D Acceleration/Deceleration Time Switching Command (Set Value = 12)
Operation Example
Output
frequency
Acceleration/Deceleration
time switching reference
Forward
rotation/
Stop (S1)
Acceleration
time
1
Deceleration
time1
Acceleration
time2
Deceleration
time2
D External Baseblock Command (Set Value = 13 or 14)
The
baseblock command can be input remotely to the Inverter by setting n035 to 13 (i.e., the NO
contact
is ON) or to 14 (i.e., the NC contact is OFF).
The
baseblock is the status of the Inverter with output turned OFF
. The motor will coast to a stop if the
baseblock
command is input to the Inverter
. The
Inverter
, however
, will hold the output frequency and if
the
baseblock command is released, a speed search will be carried out from the frequency held by the
Inverter,
and the motor will be restarted. T
o clear the held frequency
, turn OFF the run command. When
the run command is turned OFF, the held frequency will change to zero.
D Speed Search Command (Set Value = 15 or 16)
The
Inverter in speed search operation restarts the motor without stopping the motor while the motor is
coasting.
The
Inverter in speed search operation makes it possible to smoothly switch
over power supply to the
motor from commercial power supply to the output power of the Inverter.
Program
a sequence to input the run command and
speed search command simultaneously or the run
command
after the speed search command. The speed search command will be ignored if the run com
-
mand is input earlier than the speed search command.
Operation Example
Output frequency
Maximum frequency
or set frequency
Minimum baseblock
time (n053)
Speed
search
operation
Minimum baseblock time (n053) or more
5 ms min.
Speed search
command
Forward
rotation/Stop
(S1)
Preparing for Operation Chapter 3
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