Specifications

2 PARAMETER
2-284
Classification
MACHINE
Display title
FEED VEL.
Address Meaning Description
Optimum acceleration control
(Target speed)
Program type M, E
Conditions After stop of axis movement
M27
Unit mm/min
Setting range 1 to 5000
Set the value that determines the maximum allowable value (Amax) of the
acceleration that occurs between blocks.
Amax =
M27
N25
× 60 × 1000 ×
100 – N26
100
(mm/msec
2
)
Note:
If M27 = 0, M27 is regarded as equal to M1 (rapid feed rate).
If N25 = 0, N25 is regarded as equal to N1 (rapid feed time constant)
—
Program type —
Conditions —
M28
Unit —
Setting range —
Invalid
Rapid feed clamping speed 1 for
superposition control
Program type M, E
Conditions After stop of axis movement
M29
Unit 1 mm/min
Setting range 0 to 600000
Set the rapid feed clamping speed 1 for superposition control.
(Set value for the reference axis and superposition axis to be used during
superposition control.)
- When both the reference axis and superposition axis move at a rapid
feed rate and in the same direction (see Note below), the rapid feed rate
for superposition will be clamped in accordance with the setting of M30.
- Set M29 to M31 so that the following conditions are satisfied:
M29 (RA) + M31 (SA) ≤ M1 (SA)
M31 (RA) + M29 (SA) ≤ M1 (SA)
M30 (RA) + M30 (SA) ≤ M1 (SA) RA: reference axis
M31 (RA) + M31 (SA) ≤ M1 (SA) SA: superposition axis
Note:
Whether the axes move in the same direction or in different directions is
judged from the command and polarity (parameter N21, bit 6).
Rapid feed clamping speed 2 for
superposition control
Program type M, E
Conditions After stop of axis movement
M30
Unit 1 mm/min
Setting range 0 to 600000
Set the rapid feed clamping speed for superposition control when both the
reference axis and superposition axis move at a rapid feed rate and in the
same direction (see the Note).
(Set value for the reference axis and superposition axis to be used during
superposition control.)
- Set M29 to M31 so that the following conditions are satisfied:
M29 (RA) + M31 (SA) ≤ M1 (SA)
M31 (RA) + M29 (SA) ≤ M1 (SA)
M30 (RA) + M30 (SA) ≤ M1 (SA) RA: reference axis
M31 (RA) + M31 (SA) ≤ M1 (SA) SA: superposition axis
Note:
Whether the axes move in the same direction or in different directions is
judged from the command and polarity (parameter N21, bit 6).
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