Mitsubishi Electric FR-A701 Instrucion Manual page 116

Parameter
Name
PWM frequency
72
selection
Soft-PWM
240
operation selection
Analog input
73
selection
Terminal 1 added
compensation
242
amount (terminal 2)
Terminal 1 added
compensation
243
amount (terminal 4)
Override bias
252
Override gain
253
Terminal 4 input
267
selection
Input filter time
74
constant
Speed setting filter 1
822
Torque setting filter 1
826
Speed setting filter 2
832
Torque setting filter 2
836
Analog input offset
849
adjustment
Reset selection/
disconnected PU
75
detection/PU stop
selection
Incre Initial
Range
ments Value
PWM carrier frequency can be changed.
The setting displayed is in [kHz].
Note that 0 indicates 0.7kHz, 15 indicates
14.5kHz.
1 2 0 to 15 The following settings are for real
sensorless vector control and vector
control.
0 to 5: 2kHz, 6 to 9: 6kHz,
10 to 13: 10kHz, 14 to 15: 14kHz
0 Soft-PWM invalid
1 1
1 When Pr. 72 = "0 to 5", Soft-PWM is valid.
You can select the input specifications of
terminal 2 (0 to 5V, 0 to 10V, 0 to 20mA)
and input specifications of terminal 1 (0 to
±5V, 0 to ±10V).
To change the terminal 2 to the voltage
0 to 7, input specification (0 to 5V/ 0 to 10V), turn
1 1
10 to 17 OFF (initial status) the voltage/current
input switch 2. To change it to the current
input (0 to 20mA), turn ON the voltage/
current input switch 2.
Override and reversible operation can be
selected.
Set the ratio of added compensation
0.1% 100% 0 to 100%
amount when terminal 2 is the main speed.
Set the ratio of added compensation
0.1% 75% 0 to 100%
amount when terminal 4 is the main speed.
Set the bias side compensation value of
0.1% 50% 0 to 200%
override function.
Set the gain side compensation value of
0.1% 150% 0 to 200%
override function.
Terminal 4 input
0
4 to 20mA
1 0
Terminal 4 input
1
0 to 5V
Terminal 4 input
2
0 to 10V
The primary delay filter time constant for
1 1 0 to 8 the analog input can be set.
A larger setting results slower response.
Set the time constant of the primary delay
0 to 5s,
0.001s 9999 filter relative to the external speed
9999
command (analog input command).
Set the time constant of the primary delay
0 to 5s,
0.001s 9999 filter relative to the external torque
9999
command (analog input command).
0 to 5s, Second function of Pr. 822 (valid when the
0.001s 9999
9999 RT terminal is on)
0 to 5s, Second function of Pr. 826 (valid when the
0.001s 9999
9999 RT terminal is on)
This function provides speed command by
analog input (terminal 2) with offset and
0.1% 100% 0 to 200%
avoids frequency command to be given
due to noise under 0 speed command.
You can select the reset input acceptance,
disconnected PU (FR-DU07
PU04) connector detection function and PU
0 to 3,
1 14
stop function.
14 to 17
For the initial value, reset always enabled,
without disconnected PU detection, and
with PU stop function are set.
Parameter List
Para
meter
copy
Description
Turn ON the
voltage/current
input switch
1(initial status).
Turn OFF the
voltage/current
input switch 1.
/FR-PU07 /FR-
All
Param
param
eter
eter
clear
clear
: enabled
× : disabled
×
×
4
× ×
109