Mitsubishi Electric EZMotion-NC E60 Series, Operation Manual, Page: 391 / 510

6. Operation Panel Switch Functions
6.16 Deceleration Check
II -30
6.16 Deceleration Check
6.16.1 Functions
The purpose of the deceleration check is to reduce the machine shock that occurs when the control
axis feedrate is suddenly changed, and prevent corner roundness. The check is carried out at block
joints.
(1) Deceleration check during rapid traverse
The deceleration check is always carried out at the block joints during rapid traverse, before
executing the next block.
(2) Deceleration check during cutting feed
The deceleration check is carried out at the block joints (before executing the next block) during
cutting feed when any one of the following conditions is valid.
1) When the error detect switch is ON.
2) When G09 (exact stop check) is commanded in the same block.
3) When G61 (exact stop check mode) has been selected.
(3) Designating deceleration check
The deceleration check by designating a parameter includes "deceleration check specification
type 1" and "deceleration check specification type 2". The setting is selected with the parameter
"#1306 InpsTyp".
(a) Deceleration check specification type 1 ("#1306 InpsTyp" = 0)
The G0 and G1 deceleration check method can be selected with the base specification
parameter deceleration check method 1 (#1193 inpos) and "deceleration check method 2"
(#1223 aux07/bit1).
Parameter
Rapid traverse
command
Parameter
Other than rapid traverse command
(G1 : other than G0 command)
Inpos
(#1193)
G0
→
XX
(G0+G9
→
XX)
aux 07/BIT-1
(#1223/BIT-1)
G1+G9
→
XX G0
→
XX
0
Command
deceleration check
0
Command
deceleration check
1
In-position
check
1
In-position
check
No deceleration
check
(Note) XX expresses all commands.
(b) Deceleration check specification type 2 ("#1306 InpsTyp" = 1)
Rapid traverse and cutting in-position are designated with the "inpos" parameter.
Parameter Command block
#1193 Inpos G0 G1+G9 G1
0
Command
deceleration check
Command
deceleration check
No deceleration
check
1
In-position
check
In-position
check
No deceleration
check
(Note) "G0" means the rapid traverse, and "G1" means the cutting feed.
6.16.2 Deceleration Check Method
(1) Command deceleration check
After interpolation for one block has been completed, the completion of the command system
deceleration is confirmed before execution of the next block.
The time required for the deceleration check is determined according to the acceleration/
deceleration mode and acceleration/deceleration time constant.