Detailed Description
2.2 Axis monitoring, protection zones (A3)
Basic logic functions: NC/PLC interface signals (Z1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
67
2.2.3
Signals to axis/spindle (DB31, ...)
DB31, ...
DBX2.3
Clamping in progress
Edge evaluation: no
Signal(s) updated: cyclic
Signal state 1 or
edge change
0 → 1
Clamping in progress.
The clamping monitoring function is activated.
Signal state 0 or
edge change
1 → 0
Clamping completed.
The clamping monitoring function is replaced by the standstill (zero speed) monitoring.
Corresponding to .... MD36050 $MA_CLAMP_POS_TOL (Clamping tolerance)
DB31, ...
DBX3.6
Velocity/spindle speed limitation
Edge evaluation: no
Signal(s) updated: cyclic
Signal state 1 or
edge change
0 → 1
The NCK limits the velocity/spindle speed to the limit value set in the machine data:
MD35160 $MA_SPIND_EXTERN_VELO_LIMIT
Signal state 0 or
edge change
1 → 0
No limitation active.
Corresponding to .... MD35100 $MA_SPIND_VELO_LIMIT (max. spindle speed)
SD43220 $SA_SPIND_MAX_VELO_G26 (prog. spindle speed limiting G26)
MD43230 $SA_SPIND_MAX_VELO_LIMIT (prog. spindle speed limiting G96/G961)
DB31, ...
DBX12.0 - DBX12.1
Hardware limit switches plus and minus
Edge evaluation: no
Signal(s) updated: cyclic
Signal state 1 or
edge change
0 → 1
A switch can be mounted at each end of the travel range of a machine axis which will cause a
signal "hardware limit switch plus or minus" to be signaled to the NC via the PLC if it is actuated.
If the signal is recognized as set, alarm 021614 "hardware limit or -" is output and the axis
is decelerated immediately.
The braking/deceleration type is defined using the machine data:
MD36600 $MA_BRAKE_MODE_CHOICE (braking behavior at the hardware limit switch)
If the controller enable is withdrawn at the same time as the "hardware limit switch" signal, then the
axis responds as described in Chapter A2 ("various interface signals").
Signal state 0 or
edge change
1 → 0
Normal condition - a hardware limit switch has not been actuated.
Corresponding to .... MD36600 $MA_BRAKE_MODE_CHOICE (deceleration behavior when the hardware limit switch
responds)
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 ...