323
PARAMETER
2
P
ARAM
ETE
R
2.12.2 Response level of analog input and noise elimination [Pr. 822, 826, 832, 836]
(A700)
You can adjust response level and stability of frequency
command and torque command at analog input (terminal 1,
2, 4, terminal 6 (FR-A7AZ))
(1) Time constant of analog speed command
input [Pr. 822, 832]
Set the time constant of the primary delay filter
relative to the external speed command (analog input
command) using [
Pr. 822 Speed setting filter 1
].
Set a large time constant when you want to delay the
tracking of the speed command, when the analog
input voltage fluctuates, etc.
When you want to change time constant when
switching multiple motors with one inverter, etc., use
the [
Pr. 832 Speed setting filter 2
].
[
Pr. 832 Speed setting filter 2
] is valid when the RT
signal turns ON.
(2) Time constant of analog torque input
[Pr. 826, 836]
Set the time constant of the primary delay filter
relative to the external torque command (analog input
command) using [
Pr. 826 Torque setting filter 1
] during
Real sensorless vector control.
Set a large time constant value when you want to
delay the tracking of the torque command, when the
analog input voltage fluctuates, etc.
When you want to change time constant when
switching between two motors with one inverter, etc.,
use [
Pr. 836 Torque setting filter 2
]. [
Pr. 836 Torque
setting filter 2
] is valid when the RT signal turns ON.
A700
[Pr.]
Name
Initial Value
Setting Range
Description
822
Speed setting filter 1
9999
0 to 5s
Set the time constant of the primary delay filter relative to
the external speed command (analog input command).
9999
[
Pr. 74
] used
826
Torque setting filter 1
9999
0 to 5s
Set the time constant of the primary delay filter relative to
the external torque command (analog input command).
9999
[
Pr. 74
] used
832
Speed setting filter 2
9999
0 to 5s, 9999
Second function of [
Pr. 822
] (valid when RT signal is ON)
836
Torque setting filter 2
9999
0 to 5s, 9999
Second function of [
Pr. 826
] (valid when RT signal is ON)
Summary of Contents for FR-A700 Series
Page 245: ...279 2 PARAMETER PARAMETER MEMO ...
Page 440: ...474 PARAMETER MEMO ...
Page 522: ...556 SELECTION MEMO ...
