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Before operation
<Selection method of position control>
z In the position control, the speed command is calculated so that the difference between command pulse (or
parameter setting) and the number of feedback pulses from the encoder is zero to run the motor.
z This inverter can perform simple position feed by contact input, position control by inverter simple pulse input,
and position control by FR-A7AL pulse train input.
CAUTION
⋅ The carrier frequencies are selectable among 2k, 6k, 10k, and 14kHz for vector control.
Position command by contact
input
Set "0" (initial value) in
Pr. 419
.
Test run
Perform secure wiring. (Refer to page 32.)
Set the motor and encoder. (Pr. 71, Pr. 359, Pr. 369)
As required
· Set the electronic gear. (refer to Chapter 4 of the Instruction Manual (Applied))
· Setting of positioning adjustment parameter (refer to Chapter 4 of the Instruction Manual
(Applied))
· Gain adjustment of position control (refer to Chapter 4 of the Instruction Manual (Applied))
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/FR-A7AL (option).
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 "3" (position control) "4" (speed-
position switchover) or "5" (position-torque switchover) for
Pr. 800
.
Selection of position command source. (Pr. 419)
Setting of parameter for position feed
(Pr. 465 to Pr. 494).
(Refer to Chapter 4 of the Instruction
Manual (Applied).)
Selection of command pulse form.
(Pr. 428)
(Refer to Chapter 4 of the
Instruction Manual (Applied).)
Position command by
inverter pulse train input
Set "2" in
Pr. 419
.
Refer to the Instruction Manual of
FR-A7AL.
Position command from the
positioning module of the
programmable controller
system (through FR-A7AL)
Set Pr. 419 = "1"