
7. Feed Functions
7.9 Exact Stop Check; G09
133
(3) With deceleration check
(a) With linear acceleration/deceleration
Ts
Td
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Ts : Acceleration/deceleration time constant
Td : Deceleration check time
Td = Ts + ( 0 ~ 14ms)
(b) With exponential acceleration/deceleration
Ts
Td
Previous block
Next block
Ts : Acceleration/deceleration time constant
Td : Deceleration check time
Td = 2
×
Ts + ( 0 ~ 14ms)
(c) With exponential acceleration/linear deceleration
2 x Ts
Td
Ts
Previous block
Next block
Ts : Acceleration/deceleration time constant
Td : Deceleration check time
Td = 2
×
Ts + ( 0 ~ 14ms)
The time required for the deceleration check during cutting feed is the longest among the
cutting feed deceleration check times of each axis determined by the cutting feed
acceleration/deceleration time constants and by the cutting feed acceleration/
deceleration mode of the axes commanded simultaneously.
(Note 1)
To execute exact stop check in a fixed cycle cutting block, insert command G09
into the fixed cycle subprogram.