Yaskawa MP940 Reference Manual - Manual (Page 278)

SGDH User Parameters MotionSuite™ MP940 Machine Controller Reference Manual
6-78
Torque-related Constants
A detailed list of torque-related constants appears below.
Torque Related Constants
User
Parameter
Number
Digit
Position
Name
(setting
range)
Content
Default
Setting
Control
Mode
Pn400
Torque Reference Input
Gain 0.1V
/Rated
Torque
10 ~ 100 Cannot be used in connection with an
MP940. 30 Speed
Torque
Position
Pn401
Torque Reference Filter
Time Constant 0.01ms
0 ~ 65535 Adjust the Filter Time Constant below when
vibration believed to be caused by the servo
drive occurs in the machine.There are cases
where vibration is obtained.
This is where the torque filter time constant
within the servo amplifier is used.The smaller
the value, the better the attainable control
responsiveness; however, limits apply in
accordance with the machine conditions. 100 Speed
Torque
Position
Pn402
Forward Torque Limit %
0 ~ 800 This is used when an upper output torque
limit is desired to protect both the machine
and the work (Internal Torque Limit). It sets
the torque limits in both the forward and
reverse sides.
The limits are always active, and output the
following signal when their value is reached.
The output signal is as follows when the
torque limit is reached.
/CLT
/CLT Signal Output Condition: Assign
Pn50F.0 to any of the output terminals
S01~03.
Monitor Mode: Un006
The setting unit is in % of rated torque.
Note: The motor is limited to the maximum
torque if a value higher than the maximum
torque is set.
Application Example: Machine Protection 800 Speed
Torque
Position
Speed
Torque Limit
Torque
An excessively small setting will result in insufficient
torque during accel/decel.