Okuma Alarm-A 1260 Tow-along tailstock command not possible

Okuma Alarm-A 1260 Tow-along tailstock command not possible
M188 (Tailstock disconnect), or M189 (Tailstock connect) is designated with G152 calling for tailstock towing mode while the spindle is not in zero speed or while the spindle is not at a still.
M188, M189 or G152 is designated while the spindle rotation command is active.
M188, M189 or G152 is designated while the center work is not selected.
M188, M189 or G152 is designated while the tailstock spindle is not at the retraction end, or the turrets are not at the stroke end in the positive direction.

Code
1->M188, M189 or G153 is designated while the spindle is not in zero speed.
2->M188, M189 or G153 is designated while the spindle is not at a still.
3->M188, M189 or G152 is designated while the spindle rotation command is active.
4->M188, M189 or G152 is designated while center work is not selected.
5->M188, M189 or G152 is designated while the tailstock spindle is not at the retraction end.
6->M188, M189 or G152 is designated while the turrets are not at the stroke end in the positive direction.
7->M189, M152 are designated while both of the disconnect and connect signals are ON or OFF.
8->When the tailstock connect ON key is pressed, the spindle is not at a still.
9->When the tailstock connect ON key is pressed, XA-axis is not at the travel end in the positive direction.
10->When the tailstock connect ON key is pressed, the tailstock is not at the retract end.
11->When the tailstock connect ON key is pressed, the tailstock is not unclamped.
12->M189 is designated when the tailstock chuck is not unclamped.
13->While the tow-along tailstock or simple tow-along tailstock was being connected, the tailstock chuck was clamped.

14->When the signal for confirming disconnection of tailstock was OFF, a tailstock chuck clamp command was issued.
15->When it was not a tailstock concatenation carriage return place , they went along M189 instructions.
16->Concerning NC tailstook in tailstook unclamp at G02, G03, G30, G31, G32, G33, G34, G35 command is designated.
17->Concerning NC tailstook, an axis movement instruction except for W, Z axis was performed in tailstook unclamp.
18->Concerning NC tailstook, W axis movement instruction was performed by following state.

Probable Faulty Locations
Operation error

Related Specifications
Programmable tailstock