S9: Setpoint Changeover; Signals To Axis/Spindle (Db31 - Siemens SINUMERIK 840D sl Function Manual

Z3: NC/PLC interface signals

25.6 S9: Setpoint changeover

DB31, ...
DBX95.2 ESR: Reaction triggered or generator operation active
Edge evaluation: No
Signal state 1 The drive signals that the configured ESR response has been triggered or generator operation is
active.
Signal state 0 The drive signals that neither the configured ESR response has been triggered nor that generator
operation is active.
Corresponding to .... Drive telegram MELDW.Bit 9
Additional references Commissioning Manual IBN CNC: NCK, PLC, Drive
DB31, ...
DBX95.3 Generator operation – minimum speed fallen below
Edge evaluation: No
Signal state 1 The axis is parameterized as generator axis. The drive signals that the actual speed is less than the
minimum speed set using parameter p2161 (speed threshold value 3).
Signal state 0 The axis is parameterized as generator axis. The drive signals that the actual speed is greater than
the minimum speed set using parameter p2161 (speed threshold value 3).
Application exam‐ The PLC user program can initiate measures in order to safely end machining and/or to buffer the
ple(s) DC link voltage, e.g. initiate a drive-autonomous and/or control-managed extended stop and retract
(ESR).
Corresponding to ....
● Drive parameter p2161 (speed threshold value 3)
● Drive telegram MELDW.Bit2
Additional references Commissioning Manual IBN CNC: NCK, PLC, Drive
25.6 S9: Setpoint changeover
25.6.1

Signals to axis/spindle (DB31, ...)

DB31, ...
DBX24.5
Edge evaluation: No
Signal state = 1
Signal state = 0
814
Signal(s) updated: Cyclically
Signal(s) updated: Cyclically
Activate setpoint exchange
Signal(s) updated: Cyclic
Request to axis to take over drive control.
Request to axis to relinquish drive control.
Function Manual, 01/2015, 6FC5397-2BP40-5BA2
Special functions