Sensor Data - Siemens SINUMERIK 840D Function Manual

S1: Spindles
18.9 Spindle with SMI 24 (Weiss spindle)
Requirement
● The spindle is connected to the drive via Sensor Module SMI 24 using DRIVE-CLiQ.
● Drive telegram 139 is configured for the spindle.
Note
Drive telegram 139
In principle, a spindle with Sensor Module SMI 24 can also be operated with another drive
telegram. However, sensor data is only transferred to the control using drive telegram 139.
18.9.2

Sensor data

Sensors in the spindle motor
The spindle sensors provide information about the clamping device and the angular position of
the motor shaft:
● Analog sensor S1: Clamped state
Voltage value in the range from 0 - 10 V depending on the position of the draw bar.
● Digital sensor S4: Piston end position
– 0 = piston not in position
– 1 = piston is in position, i.e. piston is free to move
● Digital sensor S5: Angular position of the motor shaft
– 0 = motor shaft not aligned
– 1 = motor shaft is in position (requirement: The spindle is stationary)
Transmission of sensor data
Sensor data is transferred to the control from sensor module SMI 24 in cyclic drive telegram 139
as process data 11 - 14. Drive telegram 139 is based on drive telegram 136, where sensor data
is transferred instead of the data of the 2nd encoder. A detailed description of drive telegram
139 can be found in:
Further information
List Manual SINAMICS S120/S150; Function diagrams - PROFIdrive
838
Axes and spindles
Function Manual, 06/2019, A5E47437747B AA