Mitsubishi Electric FR-V520-1.5K to 55K Instruction Manual page 72

Name
The torque bias function is designed to quicken the rise of torque at a motor start. You
840 Torque bias selection
can set the then output torque using the parameters or analog signals.
0: 3 internal parameters, 1 to 3: External analog input, 9999
Set the torque bias values when you chose internal parameter-based torque bias
841 Torque bias 1
selection. Assign X42 (torque bias selection 1) and X43 (torque bias selection 2) to the
input terminals.
842 Torque bias 2
600 to 1400%
1) Pr. 841 when X42 is on and X43 is off, 2) Pr. 842 when X42 is off and X43 is on, 3)
843 Torque bias 3
Pr. 843 when X42 is on and X43 is on
You can slow the rise of torque for the torque command. A primary delay filer time
844 Torque bias filter
constant.
0 to 5s, 9999
Torque bias operation
Set the time until the set torque of the torque bias amount is generated.
845
time 0 to 5s, 9999
Torque bias balance
Set the torque balance with the balance weight.
846
compensation 0 to 10V, 9999
When you set 1 or 2 in Pr. 840, set the bias value of the torque bias at the time of fall
Fall-time torque bias
847
from the load input from the No. 3 terminal.
No. 3 bias
0 to 400%, 9999
When you set 1 or 2 in Pr. 840, set the gain value of the torque bias at the time of fall
Fall-time torque bias
848
from the load input from the No. 3 terminal.
No. 3 gain
0 to 400%, 9999
When speed command by analog input is set, create the range where the motor
Analog input off set
849
remains stop to prevent malfunction at very low speed.
adjustment
0 to 200%
Number of PLG
Set the number of pulses of the PLG.
851
0 to 4096
pulses
Set the rotation direction of the PLG.
Pr. 852 Setting
0
852 PLG rotation direction
1
(Factory setting)
Set the excitation ratio under no load.
854 Excitation ratio
0 to 100%
859 Torque current
Use for utilization of the tuning data or direct input.
You can use the machine resonance speed to make this setting to reduce the response
862 Notch filter frequency
level of the machine resonance frequency band, avoiding machine resonance.
0 to 31
Set the depth at which the gain of the machine resonance frequency set in Pr. 862 is
863 Notch filter depth
lowered.
0 to 3
You can make setting to output a signal if the motor torque exceeds the predetermined
864 Torque detection
value.
0 to 400%
You can make setting to output a signal if the speed has fallen to or below the preset
865 Low speed detection
low speed.
0 to 3600r/min
Set the reference for the motor torque or load meter torque monitoring output (DA1 or
Torque monitoring
866
other analog output).
reference
0 to 400%
Set the primary delay filter for the DA1 analog output.
867 DA1 output filter
0 to 5s
You can change the setting of the multi-function analog terminal (No. 1 terminal).
Setting
0
1
No. 1 terminal
2
868
function selection
5
9999
Outline
Relationship between the motor and PLG
A
PLG
Forward rotation is clockwise rotation
when viewed from A.
CCW
A A
PLG PLG
orward rotation is counterclockwise rotation
hen viewed from A.
Speed Control Torque Control
Speed restriction
Speed setting auxiliary
auxiliary
Magnetic flux command Magnetic flux command Magnetic flux command
Regenerative torque
No function
restriction
Forward/reverse rota-
tion speed restriction
No function (analog polarity
switchover speed
restriction)
No function No function
68
Function list (Extended function
Cus-
Factory tomer
Setting Set-
ting
9999
9999
9999
9999
9999
9999
9999
9999
9999
100%
2048
CW
1
100%
9999
0
0
150%
45r/min
150%
0.05s
Position Control
No function
Regenerative torque
0
restriction
No function
No function
parameters)
At-a-glance Guide to Func-
tions
" " " " : Usable function
×: Unusable function
* : Functions that can be used
for param eter-set position con-
trol
Vector Control
Speed Torque Position
control control control
" " " " × ×
" " " " × ×
" " " "
× ×
" " " "
× ×
" " " "
× ×
" " " "
× ×
" " " "
× ×
" " " "
× ×
" " " "
× ×
" " " " " " " " " " " "
" " " " " " " " " " " "
" " " " " " " " " " " "
" " " " " " " " " " " "
" " " " " " " " " " " "
" " " " × " " " "
" " " " " " " " " " " "
" " " " " " " " " " " "
" " " " " " " " " " " "
" " " " " " " " " " " "
" " " " " " " " " " " "
5