Torque control parameter, Internal speed limit function – Yaskawa FSP Amplifier User Manual
Page 106

FSP Amplifier User’s Manual
Chapter 5: Parameter Settings and Functions
5-39
Torque Control Parameter
The following parameter is used for torque control. Set the parameter
according to requirements of the servo system that is used.
Parameter Signal
Setting
(0.1 V / Rated Torque)
Control Mode
Pn400
Torque Reference
Input Gain
Range: 10 to 100
Default Setting: 30
Torque Control and
Programming
This parameter sets the voltage range for torque reference input T-REF
(CN1-9) depending on the output range of the host controller or external
circuit.
The default setting is 30, so the rated torque output is equal to 3 V
(30 × 0.1).
This reference voltage is set.
Reference torque
Reference
voltage (V)
Rated torque
Pn002.1 Setting
Description
0
Uses speed limit set by Pn407 (internal speed limit function).
1
Uses V-REF (Cn1-5 and -6) as external speed limit input and
sets speed limit by voltage, which are input to V-REF and
Pn300 (external speed limit function).
Internal Speed Limit Function
Parameter
Signal
Setting (rpm)
Control Mode
Pn407
Speed Limit during
Torque Control
Range: 0 to 10000
Default Setting: 10000
Torque Control
This 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 functions the same in torque
control as the /CLT signal, see 5.1.3 Limiting Torque, where the /CLT
signal is described.
Torque limit
Motor speed
Torque
Torque
control
range
Torque Control Range