Detailed Description
2.3 Configurable gear adaptation
Basic logic functions: Spindles (S1)
54
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
Oscillation via PLC
NC/PLC IS:
DB31, ... DBX18.4 (Oscillation via PLC)
and
DB31, ... DBX18.5 (oscillation speed)
accelerates the spindle motor to the speed (with oscillation acceleration) defined in machine
data:
MD35400 $MA_SPIND_OSCILL_DES_VELO (oscillation speed)
.
The direction of rotation is defined by NC/PLC IS:
DB31, ... DBX18.7 (Set direction of rotation CCW)
and
DB31, ... DBX18.6 (Set direction of rotation CW)
.
The oscillation movement and the two times t1 and t2 (for clockwise and counterclockwise
rotation) must be simulated on the PLC.
Special points to be noted
Setting/Resetting the NC/PLC IS and machine data in oscillation mode:
•
To decelerate the spindle, the PLC user need not set NC/PLC IS:
DB31, ... DBX4.3 (Spindle stop).
The spindle is brought to a standstill internally by the control when a gear step change is
requested.
•
The gear step change should always be terminated with NC/PLC IS:
DB31, ... DBX16.3 (Gear changed)
.
•
NC/PLC IS:
DB31, ... DBX18.5 (Oscillation speed)
should be used to support mechanical engagement of the gear.
It has no effect on the internal control mechanism for the gear step change procedure
and should therefore only be set as necessary.
•
If NC/PLC IS:
DB31, ... DBX18.5 (Oscillation speed)
is reset, oscillation mode stops.
However, the spindle remains in "oscillation mode".
•
The acceleration is defined in the following machine data:
MD35410 $MA_SPIND_OSCILL_ACCEL
•
The spindle will cease to be synchronized if an indirect measuring system (motor
encoder) is used.
If the machine data is set to:
MD31050 $MA_ENC_IS_DIRECT = 0,
NC/PLC IS:
DB31, ... DBX60.4/5 = 0 (Homed/Synchronized)
is automatically deleted.
The zero mark is synchronized the next time it is crossed.
Summary of Contents for SINUMERIK 840D sl
Page 282: ...Index Basic logic functions Acceleration B2 64 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 388: ...Basic logic functions Travel to fixed stop F1 Function Manual 11 2006 6FC5397 0BP10 2BA0 52 ...
Page 962: ...Index Basic logic functions Emergency Stop N2 20 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1704: ...Constraints Basic logic functions Spindles S1 94 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1716: ...Index Basic logic functions Spindles S1 106 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 1996: ...Index Basic logic functions Tool Offset W1 208 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2150: ...Table of contents Basic logic functions Appendix 4 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...
Page 2184: ...Glossary Basic logic functions Appendix 38 Function Manual 11 2006 6FC5397 0BP10 2BA0 ...