Siemens SINUMERIK 840D sl Function Manual page 1668

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Table of Contents

Z1: NC/PLC interface signals

19.12 Feeds (V1)

Feed stop / spindle stop (axis-specific)

Application exam‐

The traversing motion of the machine axes is not started with "feed stop", if, for example, certain

operating states exist at the machine that do not permit the axes to be moved (e.g. a door is not

Spindle stop:

In order to change a tool

To enter help functions (M, S, H, T, D and F functions) during setup.

Special cases,

Spindle stop is inactive when G331, G332 are active.

errors, ......

Spindle override

Edge evaluation: No

Signal state 1 or

The spindle override can be defined via the PLC in binary or Gray coding.

The override value determines the percentage of the programmed speed setpoint that is issued to

the spindle.

With binary coding, the override is interpreted in %. 0% to 200% feed changes are possible, in ac‐

cordance with the binary value in the byte.

The following permanent assignment applies:

Binary values > 200 are limited to 200%.

The machine data:

MD12100 $MN_OVR_FACTOR_LIMIT_BIN (limit for binary-coded override switch)

can be used to additionally limit the maximum spindle override.

Signal(s) updated: Cyclically

Function Manual, 01/2015, 6FC5397-0BP40-5BA2

Basic Functions

Sinumerik 828d Sinumerik 840de sl