Mitsubishi Electric FR-A700 Technical Manual page 289

2.12.2 Response level of analog input and noise elimination [Pr. 822, 826, 832, 836]
A700
(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))
[Pr.] Name
822 Speed setting filter 1
826 Torque setting filter 1
832 Speed setting filter 2
836 Torque setting filter 2
(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.
Initial Value Setting Range
0 to 5s
9999
9999
0 to 5s
9999
9999
9999 0 to 5s, 9999
9999 0 to 5s, 9999
(2) Time constant of analog torque input
323
Description
Set the time constant of the primary delay filter relative to
the external speed command (analog input command).
[Pr. 74] used
Set the time constant of the primary delay filter relative to
the external torque command (analog input command).
[Pr. 74] used
Second function of [Pr. 822] (valid when RT signal is ON)
Second function of [Pr. 826] (valid when RT signal is ON)
[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.
PARAMETER
2