Speed Limit Value Setting Method; Precautions At Continuous Operation To Torque Control Mode - Mitsubishi Electric QD77MS User Manual

Speed limit value setting method

Acceleration/deceleration is performed based on a trapezoidal
acceleration/deceleration processing. Set acceleration/deceleration time toward
"[Pr.8] Speed limit value" in "[Cd.148] Acceleration time at continuous operation to
torque control mode" and "[Cd.149] Deceleration time at continuous operation to
torque control mode". The value at continuous operation to torque control mode
switching is valid for "[Cd.148]" and "[Cd.149]".
"[Cd.147] Speed limit value at continuous operation to torque control mode" is
limited with "[Pr.8] Speed limit value". If the speed exceeding the speed limit value
is commanded, the warning "Speed limit value over" (warning code: 501) occurs,
and the operation is controlled with the speed limit value.
Confirm the command speed to servo amplifier with "[Md.122] Speed during
command".
Speed limit value
Pr.8
1000
Pr.8 Speed limit value
Pr.17 Torque limit
setting value
30.0%
Pr.17 Torque limit
setting value
Cd.147 Speed limit value at
continuous operation to
torque control mode
Cd.150 Target torque at
continuous operation to
torque control mode

Precautions at continuous operation to torque control mode

The following functions of the servo amplifier are not available during the
continuous operation to torque control mode.
Base circuit shut-off delay time function
Forced stop deceleration function
Vertical axis freefall prevention function
Driver communication function
Position control mode or
V
Speed control mode
0
Torque
0
0
0
12 - 30
Continuous operation
to torque control mode
Cd.149 Deceleration time at
continuous operation
to torque control mode
Contact with
target
1000
300
Chapter 12 Expansion Control
Position control mode or
Speed control mode
t
t
0
0