Clamped State - Siemens SINUMERIK 840D Function Manual

S1: Spindles
18.9 Spindle with SMI 24 (Weiss spindle)
18.9.3

Clamped state

Sensor S1 supplies an analog voltage value 0 V - 10 V depending on the position of the
clamping device. The voltage value is available in the system data for evaluation of the clamped
state on the user side.
Note
The subsequently described evaluation of sensor S1 to generate the state value for the
clamped state and limiting the spindle speed are only realized if the following state values are
displayed in drive parameter r5000:
● r5000.0 == 1: Sensors available
● r5000.1 == 1: Sensor S1 (clamped state) available
● r5000.10 == 1: State values are generated, speed limits p5043 active
See also Section "Sensor data (Page 838)", paragraph: "System data: sensor data"
State value
To simplify the evaluation, the clamped state in the system data is also available as state value
0 - 11.
A voltage range corresponds to a certain clamped state. The voltage ranges can be set using
drive parameter p5041[0...5].
A voltage tolerance can also be set for the voltage ranges using drive parameter p5040.
Note
The voltage range ± voltage tolerance must not overlap.
Speed limits
For the clamped states with state values 3 - 10, speed limit values can be specified using drive
parameter p5043[0...6]. In the other clamped states (state values 1, 2 and 11), a limit value of
0 [rpm] permanently applies.
In the various clamped states, the controller limits the spindle speed to the applicable limit.
Note
Changing the speed limits
A change of the speed limits in drive parameter p5043[0...6] is only effective in the controller
(limitation of the spindle speed to the new speed limit) after:
● Power-on reset or when the controller is switched-off/switched-on
● Deselecting the "Park" status for the spindle (see Function Manual "Monitoring and
Compensating", Section "Parking a machine axis")
840
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA