Okuma Alarm-A 1724 Spindle synchronization interlock

Okuma Alarm-A 1724 Spindle synchronization interlock
Any of the following conditions is not satisfied when the spindle synchronized control command (M151/M150) is designated.
Assume that the A-spindle is controlled in synchronization with the B-spindle rotation.
1)The spindle rotation command for the A-spindle is not activated.
2)An S command for the A-spindle is not activated.
Any of the following conditions is not satisfied when the spindle synchronized control ON command (M151) is designated.
3)Chuck on the A-spindle is not clamped.
4)The spindle rotation command for the B-spindle is not activated.
5)An S command for the B-spindle is not activated.
6)Fixed-speed rotation signal for the B-spindle is ON.
7)The A-spindle gear is not in neutral.
8)The B-spindle gear is not in neutral.
9)The C-axis is not connected in the both A- and B-spindles.
10)The B-spindle is not selected.
11)The spindle speed range in which synchronized rotation is possible is present for both the A- and B-spindles.
12)When the B-spindle is rotating, the B-spindle speed must be lower than the A-spindle speed.
The following condition is not satisfied when the spindle synchronized control is OFF.
13)The chuck on the B-spindle is not clamped.
14)The thing that mutual Main spindle is not in extreme low speed rotation mode either.
15)The thing that mutual Main spindle is not in Main spindle low speed acceleration mode either.
16)Both spindle’s chucks are not closed.
17)A synchronous rotation command was issued with the second headstock not at the lowered position.
18)APA is effective in the both A- and B-spindles.
19)The spindle synchronized rotation phasing cancel command(M210) must be executed, When the both clamped IL cancel command(M883) execute.
20)The C-axis is not clamped in the both A- and B-spindles.

Object
SYSTEM

Code
The number (hexadecimal) of each of the above conditions

Probable Faulty Locations
Program error
Program Example:

:           :
G13        G141
M40        M110
M151        :
:          M151
            :

Measures to Take
Correct the program.

:               :
G13             G141
M41<-Changed    M110
M151            :
:               Added->M109
                M151
                :