Mitsubishi Electric MELSEC-Q Series - Page 467

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7 AUXILIARY AND APPLIED FUNCTIONS
(8) Command torque time constant (positive direction), Command
torque time constant (negative direction)
Set the time (positive direction) for torque to increase from "0" to reach the torque
limit value at speed-torque control and the time (negative direction) to decrease
to "0" from the torque limit value at speed-torque control during torque control or
continuous operation to torque control.
0
t
200 300 -100 -2000 0
0
20.0
30.0
-10.0
-20.0
Torque limit value at
speed-torque control
Torque limit value at
speed-torque control
Torque command device
Command torque
time constant
(positive direction)
Command torque
time constant
(positive direction)
Torque
[%]
Command torque
time constant
(negative direction)
Command torque
time constant
(negative direction)
When the torque generation direction of servo motor is changed due to the
command torque change during torque control or continuous operation to torque
control, the operation is as follows.
• The torque output value is 0 [%] according to the setting value of command
torque time constant (negative direction). After that, the value becomes
command torque according to the setting value of command torque time
constant (positive direction).