Siemens SINUMERIK 802D sl Function Manual page 448

Glossary
Interrupt routine
Interrupt routines are special → subroutines that can be started by events (external signals)
in the machining process. A part program block which is currently being worked through is
interrupted and the position of the axes at the point of interruption is automatically saved.
JOG
Control operating mode (setup mode): In JOG mode, the machine can be set up. Individual
axes and spindles can be traversed in JOG mode by means of the direction keys. Additional
functions in JOG mode include: → Reference point approach, → Repos, and → Preset (set
actual value).
Keywords
Words with specified notation that have a defined meaning in the programming language for
→ part programs.
Kv
Servo gain factor, a control variable in a control loop.
Ladder logic
Ladder logic is a graphical programming language (→ STEP 7) for representing electric
circuit diagrams.
Leadscrew error compensation
Compensation for the mechanical inaccuracies of a leadscrew participating in the feed. The
control uses stored deviation values for the compensation.
Limit speed
Maximum/minimum (spindle) speed: The maximum speed of a spindle can be limited by
specifying machine data, the → PLC or → setting data.
Linear axis
In contrast to a rotary axis, a linear axis describes a straight line.
Linear interpolation
The tool travels along a straight line to the destination point while machining the workpiece.
Load memory
The load memory is the permanent memory of the → PLC.
448
Turning, Milling, Nibbling
Function Manual, 11/2012, 6FC5397-1CP10-5BA0