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Torque Generation Direction Setting - Mitsubishi Electric A800 Plus Series Function Manual

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The setting range and setting increment of the tension command
(Pr.1401)
• The setting increment of the tension command can be changed by the Pr.1401 Tension command increment setting. The
setting range is also changed according to the increment.
Pr.1401 setting
Setting increments
0 (initial value)
0.01 N
1
0.1 N
2
1 N
NOTE
• Changing the Pr.1401 setting changes the tension command setting (Pr.365, Pr.366, Pr.1283, Pr.1403, and Pr.1405). Before
changing the Pr.1401 setting, confirm that changing the tension command setting will not cause any problem.
Tension command - torque command switchover (X125 signal)
• When the X125 signal is turned ON during torque control, the commanded tension can be written via communication (CC-
Link/CC-Link IE/PROFIBUS-DP) regardless of whether the tension sensorless torque control is valid or invalid.
• Turn ON the X125 signal to input the tension command value before activating the tension sensorless torque control, or to
disable the tension sensorless torque control without accidentally changing the torque command value.
Tension
sensorless
X125 signal
torque control
ON
Valid
OFF
Not assigned
ON
Invalid
OFF
Not assigned
: Available through communication, ×: Not available through communication
∗1
Set Pr.362 ≠ "0" for the actual line speed input selection while tension sensorless torque control is valid. By setting Pr.362 = "0" (the line speed
command value is set as the actual line speed), the line speed command value is used as the actual line speed. However, the line speed
command setting is not used as it is. The actual line speed command output value in consideration of acceleration/deceleration is applied.
∗2
Set Pr.807 ≠ "0" (the frequency command value is set as the speed limit) for setting the speed limit while tension sensorless torque control is
valid. While tension sensorless torque control is valid, the tension command value and the frequency command value cannot be set
simultaneously.
5.5.3

Torque generation direction setting

Set parameters according to the requirement because the torque direction for winding/unwinding differs for each device. Set
the torque generation direction in accordance with the machine used.
Pr.
Name
1072
Tension reverse selection
R304
1114
Torque command reverse
R305
selection
(D403)
• The direction of torque generation during tension sensorless torque control is determined by a combination of the settings
of the start command, Pr.1072 Tension reverse selection, and Pr.1114 Torque command reverse selection.
Pr.1114
0 (The torque direction is not
reversed at STR-ON.)
1 (The torque direction is
reversed at STR-ON.)
Setting range
0 to 100 N
0 to 1000 N
0 to 10000 N
Command value setting availability through communication
Tension command
value
×
×
×
×
×
×
Initial value
0
0
Pr.1072
0 (Not reversed)
1 (Reversed)
0 (Not reversed)
1 (Reversed)
TENSION SENSORLESS TORQUE CONTROL
Tension sensorless torque control details
Torque command
Line speed
value
command value
×
×
×
Setting
range
0
The tension direction is not reversed.
1
The tension direction is reversed.
0
The torque direction is not reversed.
1
The torque direction is reversed.
Torque generation direction
STF signal ON
Forward rotation direction
Reverse rotation direction
Forward rotation direction
Reverse rotation direction
Frequency
command value
∗1
×
×
×
Description
STR signal ON
Forward rotation direction
Reverse rotation direction
Reverse rotation direction
Forward rotation direction
121
∗2
5

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