Okuma Alarm-A 1300 W-axis unable to move


Okuma Alarm-A 1300 W-axis unable to move
A side A command was issued for moving W-axis in G141 mode (sub-spindle coordinate system).
Or, a side B command was issued for W-axis movement while G141 mode (sub-spindle coordinate system) is selected on side A.

Code
0->W-axis movement by side A command in G141 mode (sub spindle coordinate system).
W-axis movement by side B command A while G141(sub spindle coordinate system) is active on side A.
1->W-axis movement was attempted with the second workhead placed in the lowering position.
2->W-axis movement was attempted with the second workhead clamped.

Probable Faulty Locations
Programming error
Program Example:

G13       G14
           :
:              G141
G00 W100-> :   Code 0
:

Measures to Take
Correct the program so that G141 is not selected before W-axis movement by side A command, or that G141 is not selected on side A when W-axis movement is executed by side B command.
1)Specify the W-axis movement command while the second workhead is unclamped.
Move the W-axis using G154(W-axis positioning command).

Okuma Alarm-A 1300 W-axis unable to move