Okuma Alarm-B 2706 Polygon cutting command condition
Polygon cutting ON/OFF command (M221/M220) is given when the conditions for polygon cutting are not satisfied.
Object
SYSTEM
Code
1->Spindle zero speed signal is not input.
2->Spindle in-stop signal is not output.
3->Spindle rotation command is active.
4->The M-tool spindle rotation command (SB command) is active.
5->The M-tool spindle is rotating.
6->C-axis is in the jointed state.
7->During M221 – M226 polygon cutting command execution, other polygon cutting mode is directly designated without designating cancel command (M220).
8->A polygon cutting command is designated in the M241 (M-tool spindle; 1st range) mode.
9->The main spindle chuck and the pickoff chuck are closed.
10->In ATC specification, flat turning instruction was performed by the state which milling tool station does not have divided.
11->It is in spindle extreme low speed rotation mode.
12->It is in Main spindle low speed acceleration mode.
13->Turret does not clamp.
14->Any of M220 to M226 commands was issued at the G14(saddle B) side.
15->The G14 (saddle B) side was in synchronous cutting rotation mode.
17->In synchronous hobbing mode.
Probable Faulty Locations
1)Program error
2)Operation error
3)Due to incorrect EC input status, representing the spindle rotation condition, the spindle rotation condition cannot be judged correctly.
4)The spindle or the M-tool spindle is forcibly rotated by an external factor.
Program Example:
M03 S500 M221 :
Measures to Take
1)Correct the program.
2)Check the M-tool spindle speed.