Spindle Installation, Spindle Functions - Siemens SINUMERIK 840C Installation Instructions Manual

08.96

10.5 Spindle installation, spindle functions

Corresponding data
• MD 131 ... 146 (Spindle override)
• MD 4000 ... 499* (Spindle data)
• MD 540* bit 2
• MD 5200 bits 0 ... 7
• MD 524* bits 0 ... 3
• MD 521* bit 1 and bit 7
• Interface DB 31 (Spindle DB)
• Interface DB 10 ... 13 (Channel DB)
Note:
Additional information in Functional Descriptions Section.
Overview
In SINUMERIK 840C, output of the analog spindle speed is fully implemented in the NC, so
that it can only be influenced from the PLC with special signals (see Interface Description,
Part 1, Signals). Spindle data for max. 8 gear stages and additional monitoring functions are
stored in the control.
The following spindle functions are available:
• Speed-controlled spindle
• Oriented spindle stop
• Position-controlled spindle (C axis)
The individual spindle functions are produced with the following spindle modes:
• Control mode
• Oscillation mode
• Positioning mode
• C axis mode
• V/f operation
• Following error compensation for thread cutting
• Multiple thread
• Thread recutting
The main characteristics are:
• Spindle speeds up to 99 999 rev/min without actual-value encoder
• Spindle speeds up to 30 000 rev/min with actual-value encoder
• Encoder-specific resolution
• Monitoring of encoder cutoff frequency
• Adjustable zero mark
• C axis mode
• Several positioning modes
© Siemens AG 1992 All Rights Reserved
SINUMERIK 840C (IA)
Spindle rotates with constant speed or cutting rate (open-loop
control of spindle speed)
Spindle rotates at constant motor speed setpoint (open-loop control
of spindle speed)
Spindle stops at a preset position (oriented spindle stop)
Spindle acts like a rotary axis (position-controlled spindle). See
Section 12 for a description.
Voltage/frequency controlled operation for MSD/AM and FDD. See
Section 12 for description.
6FC5197- AA50
10 Axis and Spindle Installation
10.5 Spindle installation, spindle functions
10–49