Mitsubishi Electric FR-A700 Series, Technical Manual

Page: 267 / 550

301
2
P
ARAM
ETE
R
PARAMETER
2.10.2 Torque command setting [Pr. 304, 305, 432, 433, 447, 448, 803 to 806]
(A700)
Torque command source for torque control can be selected.
(1) Control block diagram
[Pr. ] Name
Initial
Value Setting
Range
Description
304
Digital input and analog
input compensation enable/
disable selection
9999
0 to 4,
0 to 14,
9999
Set 4 when inputting 12 bit Torque command value,
set 14 when inputting 16 bit Torque command value.
305
Read timing operation
selection
0
0 Data is always read regardless of DY signal.
1 Data is read only when DY signal is ON.
10
Data is always read regardless of DY signal.
Filter is ON when reading data.
432
Pulse train torque command
bias
0% 0 to 400% Set torque command value when pulse train is 0.
433
Pulse train torque command
gain
0 to 400% Set torque command value when pulse train is 400kpps.
447
Digital torque command
bias
0% 0 to 400% Set torque command value when input signal is 7FFF
H
(7FF
H
).
448
Digital torque command
gain
150%
0 to 400% Set the torque command value when input signal is 0.
9999 The input signal is used as the torque command value.
803
Constant power range
torque characteristic
selection
0
0 Constant motor output command Select the torque command in the
constant power range by torque
command setting.
1 Torque constant command
804
Torque command source
selection
0
0
Torque command by terminal1 analog input *
(Refer to page 43)
1
Torque command (
-
400% to 400%) by parameter setting ([ Pr. 805 ] or [ Pr. 806 ])
2 Torque command by the pulse train input (FR-A7AL).
3
Torque command (-400% to
400%) by parameter setting ([
Pr.
805
] or [
Pr. 806
])
Torque command setting using CC-Link
communication (FR-A7NC) remote
register (
-
400% to 400%)
4 12 bit/16 bit digital input (FR-A7AX)
5
Torque command by parameter
setting ([
Pr. 805 ] or [ Pr. 806 ])
Torque command setting using CC-Link
communication (FR-A7NC) remote
register (
-
327.68% to 327.67%)
6 —
805
Torque command value
(RAM)
1000%
600 to
1400%
Writes the torque command value to the RAM. On the assumption that 1000%
is 0%, the torque command is set by an offset from 1000%.
806
Torque command value
(RAM,EEPROM)
1000%
600 to
1400%
Writes the torque command value to the RAM and EEPROM. On the
assumption that 1000% is 0%, the torque command is set by an offset from
1000%.
* When FR-A7AZ is installed, torque command from terminal 6 is also available.
A700
Set from other than CC-Link
-400% to 400%
Set from CC-Link communication
-327.68% to 327.67%
Analog input
Parameter
(
[
Pr. 805, Pr. 806
]
)
16 bit digital input
(FR-A7AX)
0
1,3,5,6
4
[
Pr. 804
]
Torque command
source selection
Speed
limit
input
+
-
Speed limit value
Speed estimated
value
Speed limit value
Speed estimated
value
Real sensorless vector control
Vector control
Speed control
(proportional control)
Speed estimator
Torque control
+
-
Motor
Encoder
2
Pulse train input
(FR-A7AL)