Mitsubishi Electric FR-A700 Technical Manual page 268

(2) Torque command
(terminal 1 or terminal 6 (FR-A7AZ)) [Pr.
804 = 0]
Torque command is given by voltage (current) input
to terminal 1 or terminal 6 (FR-A7AZ). When torque
command is input to terminal 1, set [Pr. 868 Terminal 1
function assignment = 3 or 4]. When [Pr. 804 = 0] and a
value other than 3 or 4 is set in [Pr. 868], torque
command value = 0. (Refer to page
To input torque command to terminal 6 (FR-A7AZ),
set [Pr. 406 High resolution analog input selection = 3 or
4]. When the setting overlaps with terminal 1,
terminal 6 is the torque command, and terminal 1
does not have a function. (Refer to page
Torque command by analog input can be calibrated
using calibration parameter [C16 to C19 (Pr. 919, 920)]
and [C34 to C37 (Pr. 928, 929)]. (Refer to page
Torque command
150%
-100% 0
(-10V)
-150%
(3) Torque command by parameter
[Pr. 804 = 1, Pr. 805, 806]
Torque command value can be set by setting [Pr. 805
Torque command value (RAM)] or [Pr. 806 Torque
command value (RAM, EEPROM)].
For [Pr. 805] or [Pr. 806], the setting value 1000% is
considered as torque command value 0% and the
torque command is set by an offset from 1000%. The
relationship between the [Pr. 805] or [Pr. 806] setting
and actual torque command value at this time is
shown on below.
When changing the torque command frequently, write
to [Pr. 805]. Performing frequent parameter write to
[Pr. 806] will shorten the life of the EEPROM.
When torque command is set in [Pr. 805 (RAM)] ,
powering off the inverter will erase the changed
parameter values. Therefore, the parameter value
available when power is switched ON again is the
value set in [Pr. 806 (EEPROM)] .
Torque command value
400%
600%
1000%
-400%
by analog input
)
43
)
43
320
100%
Analog input
(+10V)
to terminal 1
or terminal 6
(FR-A7AZ)
[Pr.805], [Pr.806]
settings
1400%
Torque command value
= [Pr.805] (or [Pr.806]) - 1000%
(4) Torque command by the pulse train input
[Pr. 804=2, Pr.432, 433]
Torque command is given by pulse train input of FR-
A7AL (built-in option). The relation between input
pulse and torque command value is shown below.
[Pr. 433] setting
[Pr. 432] setting
(5) Torque
communication [Pr. 804 = (1), 3, 5, 6]
)
Writing
communication or writing to remote register RWw
RWwc with the FR-A7NC (communication option)
mounted will set the torque command value.
Refer to the table below for torque command setting
method and setting increments during CC-Link
communication.
Torque Command Setting Method During
[Pr. 804]
Write in [Pr. 805]
Setting
1
Torque command value -400% to
3
Torque command value -400% to
Setting -32768 to 32767
5
Torque command value -327.68%
Setting -32768 to 32767
6
Torque command value -327.68%
* When the value is set from other than CC-Link
communication, setting value 600 to 1400 becomes -400
to 400%.
302
PARAMETER
Torque command
0 400kpps
command by using
[Pr. 805] or [Pr. 806]
CC-Link Communication
Write in Remote Register
or [Pr. 806] (RW
Setting 600 to 1400
↓
400%
Setting 600 to 1400 Setting 600 to 1400
↓
Torque command value -400% to
400%
*
Setting -32768 to 32767
↓
Torque command value -327.68% to
to 327.67%
*
↓
%
to 327.67
Input frequency
of pulse
frequency
CC-Link
from CC-Link
or
1
or RW )
W1 WC
×
↓
400%
↓
%
327.67
×