Mitsubishi Electric MELSEC-L Series, Руководство пользователя

Страница: 687 / 1040

12 - 31
Chapter 12 Expansion Control
Speed during continuous operation to torque control mode
The speed during the continuous operation to torque control mode is controlled
with an absolute value of the value set in "
Cd.147
Speed limit value at continuous
operation to torque control mode
" as command speed. When the speed reaches the
absolute value of "
Cd.147
Speed limit value at continuous operation to torque control
mode
", "Speed limit" ("
Md.108
Servo status
" (low-order buffer memory address): b4)
turns ON.
Buffer memory address (Low-order)
LD77MS2/LD77MS4 LD77MS16
Md.108
Servo status
: b4
876+100n 2476+100n
n: Axis No.-1
In addition, "
Cd.147
Speed limit value at continuous operation to torque control mode
" is
limited with "
Pr.8
Speed limit value
". If the command speed exceeding the speed
limit value is set, a warning "Speed limit value over" (warning code: 501) occurs,
and the operation is controlled with the speed limit value.
POINT
The actual motor speed may not reach the command speed depending on the
machine load situation during the continuous operation to torque control mode.
Current feed value during continuous operation to torque control mode
"
Md.20
Current feed value
", "
Md.21
Machine feed value
" and "
Md.101
Real current
value
" are updated even in the continuous operation to torque control mode. If the
current feed 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.