Reduced maximum speed in security zone

In combination with the security zone of an axis the PLC can command a switchover to a reduced maximum path feed to the CNC. This value is independent of current active moving mode (G00 or G01). The security zone is defined inside an upper and lower limit of the axis position. The reduced speed functionality gets active with PLC signal if one axis is inside the security zone or moves into this zone. The CNC reacts in real time. This means that after an eventually necessary deceleration phase none of the axes moves faster than vb_max_red_zone. For each axis two security zones can be defined. This zones can overlap each other.

The braking ramp for the adaptation on the reduced speed is independent from the active path condition. If the axis is already in the security zone at the moment of the activation signal of the PLC, the CNC brakes with feedhold acceleration (P-AXIS-00024). If the PLC signal is activated outside the zone, the CNC is braking with G00 value (P-AXIS-00004) when entering the security zone.

Representation of 2 safety ranges and limits of an axis
Representation of 2 safety ranges and limits of an axis