Yaskawa MP940 - Manual (Page 304)

Parameters
6.4.6 Torque-related Parameters
6-64
Pn406
Emergency Stop
Torque %
0 to 800 Pn406 specifies the stop torque applied for overtravel when the
input signal for prohibiting forward or reverse rotation is used.
This parameter is enabled when the Stop Mode during Over-
travel (Pn001.1) set to 2. The torque limit is specified as a per-
centage of rated torque.
Refer to Pn001.1 for overtravel details.
800 Speed
Position
Pn407
Speed Limit during
Torque Control r/min
0 to 10000 The parameter sets a motor speed limit when torque control is
selected. It is used to prevent excessive equipment speed during
torque control. Since the speed limit detection signal /VLT func-
tions the same in torque control as the /CLT signal, where the /
CLT signal is described.
The maximum speed of the servomotor will be used if Pn407 is
set to a value higher than the maximum speed of the servomotor.
Note: Principle of Speed Control
Torque reversely proportional to the difference between
the speed limit and the speed is fed back to return the sys-
tem to within the control speed range when the control
speed range is exceeded. The actual motor speed limit will
thus be increased by negative loads.
10000 Torque
Pn408
Torque-related
Function
Switches 0 Notch Filter
Selection Select to enable/disable notch filter function to lessen machine
vibration.
0: None
1: Notch filter used for torque reference.
Set vibration frequency using Pn409.
0 Speed
Torque
Position
1 Reserved 0
2 Reserved 0
3 Reserved 0
Parameter No. Digit
Name (Setting
Range)
Details Default
Control
Modes
Pn001.1
Pn406
Forward run prohibit
input P-OT (CN1-42)
Reverse run prohibit
input N-OT (CN1-43)
Stop by dynamic
brake
Coast to a stop
Decelerate to a
stop
Max. torque set-
ting for an emer-
gency stop
Torque Control Range
Motor speed
Speed limit
Torque
control
range
Torque
V-REF
Motor speed
Speed limit range