Siemens SINUMERIK 840D sl Function Manual page 1647

DB31, ...
DBX83.7 Actual direction of rotation clockwise
Signal irrelevant
● Spindle is stationary: DB31, ... DBX61.4 (axis/spindle stationary) == 1
for ...
● Spindles without position measuring encoder
Corresponding to ... DB31, ... DBX61.4 (axis/spindle stationary)
DB31, ...
DBX84.3 Rigid tapping active
Edge evaluation: Yes
The spindle is internally switched to axis mode by the "Rigid tapping" function (G331/G332). This
results in a reaction to or updating of the spindle-specific interface signals:
● DB31, ... DBX2.2 (spindle reset)
● DB31, ... DBX16.4 - DBX16.5 (synchronize spindle)
● DB31, ... DBX17.6 (invert M3/M4)
● DB31, ... DBX83.5 (spindle in setpoint range)
● DB31, ... DBX83.1 (programmable speed too high)
Edge change 0 → 1
● Rigid tapping active.
Application exam‐ Notice!
ple(s) If the following signals are set during rigid tapping, the thread will be destroyed:
● DB11, ... DBX0.7 (mode group reset) = 1
● DB21, ... DBX7.7 (channel reset) = 1
● DB31, ... DBX2.1 (controller enable) = 0
● DB31, ... DBX4.3 (feed stop) = 1
DB31, ...
DBX84.5 Active spindle mode: Positioning mode
Edge evaluation: Yes
Edge change 0 → 1 Positioning mode (SPOS or SPOSA) is active.
Corresponding to ... DB31, ... DBX84.7 (spindle operating mode, control mode)
DB31, ... DBX84.6 (spindle operating mode, oscillation mode)
DB31, ...
DBX84.6 Active spindle mode: Oscillation mode
Edge evaluation: Yes
Edge change 0 → 1 Oscillation mode is active.
Note: The spindle changes automatically to oscillation mode if there is a gear change.
Corresponding to ... DB31, ... DBX84.7 (spindle operating mode, control mode)
DB31, ... DBX84.5 (spindle operating mode, positioning mode)
DB31, ... DBX82.3 (change over gear stage)
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Signal(s) updated: Cyclically
Signal(s) updated: Cyclically
Signal(s) updated: Cyclically
Z1: NC/PLC interface signals
19.11 Spindles (S1)
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