68
<Selection method of speed control>
Speed control is exercised to match the speed command and actual motor speed.
CAUTION
⋅
Speed command setting range is 0 to 120Hz for vector control.
⋅
The carrier frequencies are selectable from among 2k, 6k, 10k, 14kHz for vector control.
Test run
Perform secure wiring.
(Refer to page 31.)
Set the motor and encoder.
(Pr. 71, Pr. 359, Pr. 369)
Set the run command.
(Refer to page 84.)
As required
· Perform offline auto tuning.
(Pr. 96) (refer to page 71)
.
· Select online auto tuning.
(Pr. 95) (refer to page 76).
· Easy gain tuning
(refer to page 77)
· Manual input speed control gain adjustment
(refer to page 79)
Select the start command and speed command.
(1) Start command
1)Operation panel: Setting by pressing
/
of the
operation panel
2)External command: Setting by forward rotation or reverse
rotation command (terminal STF or STR)
(2)Speed command
1)Operation panel: Setting by pressing
of the operation panel
2)External analog command (terminal 2 or 4) :
Give a speed command using the analog signal input to
terminal 2 (or terminal 4).
3)Multi-speed command:
The external signals (RH, RM, RL) may also be used to give
speed command.
Set the motor capacity and the number of motor poles
(Pr. 80, Pr. 81) (Refer to page 66.)
Set the motor capacity (kW) in
Pr. 80
Motor capacity
and set the number
of motor poles (number of poles) in
Pr. 81
Number of motor poles
. (V/F
control is performed when the setting is "9999" (initial value).)
Mount the FR-A7AP.
Set
Pr. 71 Applied motor
,
Pr. 359 Encoder rotation direction
and
Pr. 369
Number of encoder pulses
according to the motor and encoder used.
(Refer to page 33.)
Select a control method.
(Refer to page 66.)
Make speed control valid by selecting "0" (speed control), "2" (speed-
torque switchover), or "4" (speed-position switchover) for
Pr. 800
.
Set the torque limit.
(Pr. 810)
(Refer to chapter 4 of
the instruction manual (applied).)
Содержание FR-A741-11K
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