Mitsubishi Electric FX2N-10PG User Manual page 64

Model FX2N-10PG Pulse Output Block
2nd-speed positioning operation
1) When 1st-speed travel is small
Approx. S-shaped control
(BFM#36 b11 ON)
Trapezoidal control
(BFM#36 b11 OFF)
Travel time < Deceleration time
• If the travel time of 1st speed is shorter than the time required for deceleration to operation
speed ΙΙ (BFM#20, #19), the operation speed of 1st speed does not reach operation speed
Ι (BFM#16, #15).
• If the travel of the 1st speed is 0, it will operate at the operation speed and travel of 2nd
speed. (There is no error.)
2) When 2nd-speed travel is small
Trapezoidal control
(BFM#36 b11 OFF)
• If the travel time of 2nd speed is shorter than the time required for deceleration from
operation speed ΙΙ (BFM#20, #19), it will immediately stop when the travel reaches target
address ΙΙ (BFM#18, #17).
• If the travel of the 2nd speed is 0, the work will be decelerated and stopped to make the
travel distance equal to target address Ι (BFM#14, #13) as for a 1st-speed positioning
operation. (There is no error.)
Deceleration
Acceleration time
Operation
speed Ι
(BFM#16,#15)
Bias speed
(BFM#2)
Start
Operation
speed Ι
(BFM#16,#15)
Approx. S-shaped control
(BFM#36 b11 ON)
Bias speed
(BFM#2)
Start
time
Operation speed ΙΙ
(BFM#20,#19)
Deceleration time
Travel time < Deceleration time
Operation pattern 8
Time
Target address ΙΙ
(BFM#18,#17)
Time
8-4