Subroutine 39 - Handwhl (Selecting A Handwheel According To Hmi Interface Signals); Subroutine 40 - Axis_Ctl (Controlling The Spindle And Axes) - Siemens SINUMERIK 808D ADVANCED Series Commissioning Manual

6.6.13 Subroutine 39 - HANDWHL (selecting a handwheel according to HMI interface
signals)
Purpose
Subroutine 39 is used to select one of the two handwheels to control an axis (X, Y or Z) in the machine coordinate system or
the workpiece coordinate system according to the HMI signals. With the HANDWHEEL key and axis selection key on the
MCP, you can assign the handwheel 1 in the workpiece coordinate system to any axis.
Note
You cannot use subroutine 39 together with subroutine 41 - MINI_HHU.
Local variable definition
None
Assigned global variable
None
Relevant PLC machine data
No. Value
14512 [16].7 1
0
Example for calling subroutine 39
6.6.14

Subroutine 40 - AXIS_CTL (controlling the spindle and axes)

Purpose
Subroutine 40 is used to control the drive pulse enable (DB380x.DBX4001.7) and controller enable (DB380x.DBX2.1),
monitoring the hardware limits and the reference cam signals, and controlling the enable signal for the spindle according to a
spindle command (for example, SPINDLE CW, SPINDLE CCW, M03, M04, SPOS, etc.). The motor brake is automatically
controlled by the SINAMICS V70 drives.
This subroutine provides two ways to realize the hardware limit control:
● PLC solution (MD14512 [18] bit 6 = 0)
Each feed axis has one (MD14512 [18] bit 7 = 1) or two (MD14512 [18] bit 7 = 0) hardware limit switches. This
subroutine activates the NCK hardware limit function via the NCK interface DB380x.DBX1000.0 or DB380x.DBX1000.1
according to the configurations of the hardware limit switches, and thus makes the NCK produce a feed stop signal to an
over-distance axis.
Furthermore, you can also connect the output OVlmt of this subroutine with the input HWL_ON of subroutine 33 to
activate the Emergency Stop automatically once the hardware limit of any axis has been reached.
Commissioning Manual
6FC5397-4EP10-0BA8, 07/2018
Description
Handwheel assignment with the HMI
Handwheel assignment with the MCP
151