7-25
7-5 Manual Tuning
7
Adjustment Functions
Torque Control Mode Adjustment
Torque control is based on a speed control loop using the No. 4 Internally Set Speed (Pn56) or the
Speed Command Input/Torque Command Input as the speed limit. This section describes the
settings for these speed limit values.
Setting Speed Limit Values
Set the speed limit value in the No.4 Internally Set Speed (Pn56) (if the Torque Command/Speed
Limit Selection (Pn5B) is set to 0) or input the speed limit value to the Speed Command Input/
Torque Command Input (REF/TREF1) (if the Torque Command/Speed Limit Selection (Pn5B) is set
to 1).
• When the Servomotor nears the speed limit, it will switch from torque control following the analog
torque command to speed control commanded with speed limit values determined by the No. 4
Internally Set Speed (Pn56) or the Speed Command Input/Torque Command Input (REF/TREF1).
• Parameters must be set according to the procedure given in Speed Control Mode Adjustment to
perform stable operation when the speed is limited.
• The input to the torque limit section will be small and the torque may not be produced as specified
by the analog torque command if the No.4 Internally Set Speed (Pn56) or the Speed Command
Input/Torque Command Input (REF/TREF1) is too small or if the Speed Loop Gain is too low or
the Speed Loop Integration Time Constant is 1000 (disabled).
To Next Page
Loading...
Need help?
General
