Computer Drive Installation Instructions

07.97 12 Functional Descriptions

12.32.12 Collision alarms

When two protection zones collide, the axis-specific alarm ”Protection zone collision

plus/minus” is output for all the motion axes of the protection zones specifying the direction.

After that, traversal of the motion axes in the direction of the collision is disabled until the axis-

specific collision alarms have been acknowledged (retract from protection zones).

To retract in the opposite direction it is possible to traverse with the velocity resulting from the

set velocity and the minimum reduction factor.

The collision of protection zones is displayed for each protection zone in the PLC interface

DB48.

Axis

-specific alarms

Protection zone collision plus: Alarm 1368*

Protection zone collision minus: Alarm 1372*

PLC interface

Protection zone collision: DB48, DW5 and DW7, bit 0 - bit 15

12.32.13 Deselection of collision of monitoring of a protection zone

Via PLC interface DB48 it is possible to deactivate monitoring of a protection zone. For safety

reasons, the interface signal is LOW active.

PLC interface

Collision monitoring OFF: DB48, DW4 and DW6, bits 0 - bit 15 in each case.

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SINUMERIK 840C (IA)