Mitsubishi Electric FR-A820-00046 (0.4K) Instruction Manual page 274

*2 The torque command can also be given by setting a value in Pr.805 or Pr.806.
*3 Setting range if set by operation panel or parameter unit is "673 to 1327 (-327% to 327%)"; setting increment is 1%.
NOTE
• For the details of the FR-A8NC, FR-A8NCE, and FR-A8NP setting, refer to the Instruction Manual for the respective
communication options.
For the details of the CC-Link IE Field Network, refer to
• For the details of the setting using the PLC function, refer to the PLC Function Programming Manual.
 Torque command given by 16-bit digital input (Pr.804 = "4")
• Give the torque command by 12-bit or 16-bit digital input using FR-A8AX (plug-in option).
NOTE
• For the details of FR-A8AX setting, refer to the Instruction Manual of FR-A8AX
 Changing the torque characteristic of the constant-power range (Pr.801,
Pr.803)
• According to the motor's characteristics, base frequency or higher decreases the torque. To give the constant torque
command in base frequency or higher, set "1 or 11" in Pr.803 Constant output range torque characteristic selection.
• Torque in a low-speed range is constant during torque control regardless of the setting of Pr.803. However, when "2" is
set in Pr.803 under Real sensorless vector control, the torque may not be kept constant in the low-speed range.
Pr.803 setting
0 (initial value), 10 Constant motor output
1, 11 Constant torque
2 Constant torque
• To avoid overload or overcurrent of the inverter or motor, use Pr.801 Output limit level to limit the torque current in the
constant power range.
Pr.801 setting
0 to 400% Set the torque current limit level.
9999 The torque limit setting value (Pr.22, Pr.812 to Pr.817, etc.) is used for limiting the torque current.
Pr.803 = 0, 1, 10, 11
Torque
Constant torque range
Pr.803 = 2
Torque
Constant torque range
Pr.801
Torque characteristic in constant-power range
Torque characteristic
—
Without
With
Constant power range
Pr. 803 = 1, 11:
constant torque command
Pr. 803 = 0, 10:
constant power command
(torque reduction)
Rated speed
Constant power range
Torque reduction
when the output is
limited
When the output limit
Constant torque is not exceeded
command
Rated speed
Speed
5.4 Torque control under Real sensorless vector control and Vector control
page 716.
Output limit
Description
Speed
1
2
3
4
5
6
7
8
9
10
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5. PARAMETERS