Mitsubishi Electric MELSEC-LD77MS2 User Manual page 682

Speed during torque control mode
The speed during the torque control mode is controlled with "
value at torque control mode
order buffer memory address): b4) turns ON.
: b4
Servo status
Md.108
"
Speed limit value at torque control mode
Cd.146
of the rotation direction. (Controlled by the same value for forward and reverse
directions.)
In addition, "
Speed limit value at torque control mode
Cd.146
". If the speed exceeding the speed limit value is set, the warning
Speed limit value
"Speed limit value over" (warning code: 501) occurs, and the operation is
controlled with the speed limit value.
The acceleration/deceleration processing is invalid for "
".
torque control mode
POINT
The actual motor speed may not reach the speed limit value depending on the
machine load situation during the torque control.
Current feed value during torque control mode
"
Current feed value
Md.20
" are updated even in the torque control mode. If the current feed value
value
exceeds the software stroke limit, the error "Software stroke limit +" (error code:
507) or "Software stroke limit -" (error code: 508) occurs and the operation
switches to the position control mode. Invalidate the software stroke limit to
execute one-way feed.
". At this time, "Speed limit" ("
Buffer memory address (Low-order)
LD77MS2/LD77MS4
876+100n
" is set to a positive value regardless
", "
Machine feed value
Md.21
12 - 26
Chapter 12 Expansion Control
Speed limit
Cd.146
Servo status
Md.108
LD77MS16
2476+100n
n: Axis No.-1
" is limited with "
Speed limit value at
Cd.146
" and "
Real current
Md.101
" (low-
Pr.8