Mitsubishi Electric MELSEC-LD77MS2 User Manual page 678

[3] Speed control mode
Operation for speed control mode
The speed control is executed at the speed set in "
control mode
and a negative value for reverse rotation. "
during the speed control mode.
Acceleration/deceleration is performed based on a trapezoidal
acceleration/deceleration processing. Set acceleration/deceleration time toward
"
Pr.8
"
Cd.142
switching request is valid for "
The command speed during the speed control mode is limited with "
limit value
limit value over" (warning code: 501) occurs, and the operation is controlled with
the speed limit value.
Confirm the command speed to servo amplifier with "
command
V
Pr.8 Speed limit value
30000
20000
0
-10000
-20000
Pr.8 Speed limit value
Cd.140 Command speed at
speed control mode
Current feed value during speed control mode
"
Md.20
value
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.
" in the speed control mode. Set a positive value for forward rotation
" in "
Speed limit value
Deceleration time at speed control mode
". If the speed exceeding the speed limit value is set, the warning "Speed
".
Cd.141 Cd.142
Acceleration time at Deceleration time at
speed control mode speed control mode
0 20000 30000
", "
Current feed value
" are updated even in the speed control mode.
12 - 22
Cd.140
Acceleration time at speed control mode
Cd.141
". The value at speed control mode
" and "
Cd.141 Cd.142
The command speed to servo amplifier is stored
in " Md.122 Speed during command".
Cd.141
Acceleration time at
speed control mode
0 -10000
Machine feed value
Md.21
Chapter 12 Expansion Control
Command speed at speed
Cd.140
" can be changed any time
" and
".
Pr.8
Speed during
Md.122
Cd.142
Deceleration time at
speed control mode
-20000 0
" and "
Real current
Md.101
Speed
t