A3: Axis Monitoring, Protection Zones; Brief Description; Axis Monitoring Functions; Protection Zones - Siemens SINUMERIK 828D Function Manual

A3: Axis Monitoring, Protection Zones

2.1

Brief Description

2.1.1

Axis monitoring functions

Function
Comprehensive monitoring functions are present in the control for protection of people and machines:
• Contour monitoring
• Position monitoring
• Zero-speed monitoring
• Clamping monitoring
• Speed-setpoint monitoring
• Actual-velocity monitoring
• Measuring System- Monitoring
• Limit switches-monitoring
• Monitoring of the working area limitation
2.1.2

Protection zones

Function
With the help of protection zones, elements of the machine (e.g. spindle chuck, tool changer, tool holder,
tailstock, movable probe, etc.) and the workpiece can be protected against collisions.
During automatic execution of part programs in the AUTOMATIC or MDI mode, the NC checks at the start of
every part-program block whether a collision between protection zones can occur upon moving along the
programmed path.
After manual deactivation of an active protection zone, the zone can be entered. After leaving the protection
zone, the protection zone automatically becomes active again.
The definition, activation and deactivation of protection zones takes place via part program instructions.
Basic Functions
Function Manual 09/2011, 6FC5397-0BP40-2BA0
2
77