Example: Changing An Attachment Head For A Direct Position Measuring System - Siemens SINUMERIK 840D sl Function Manual

Interaction with APC (option for SINUMERIK 840D sl)
The "Park passive measuring system" function cannotbe used in conjunction with the
"Advanced positioning control (APC)" drive function.
Interaction with encoder safety protection concept
Only the 1 encoder safety protection concept can be used in conjunction with the "Park passive
position measuring system" function.
Interaction when connecting and disconnecting at the DRIVE-CLiQ
If, instead of the encoder cable, the DRIVE-CLiQ cables, e.g. between the SMC and Motor
Module are unplugged and plugged, such encoders can only be unparked without fault via the
"Parking a machine axis (Page 113)" function.
3.2.9.3

Example: Changing an attachment head for a direct position measuring system

Initial situation
● Attachment head "A" has an encoder E2.
● Attachment head "B" does not have an encoder.
● Spindle "SP" has an encoder E1.
● One of the following two telegram types is configured in MD13060
$MN_DRIVE_TELEGRAM_TYPE (standard telegram type for PROFIdrive):
– Telegram 116 (motor encoder + an external encoder)
– Telegram 136 (motor encoder + an external encoder, and torque precontrol)
● The following position measuring systems are configured in the spindle "SP":
– Motor encoder E1 as position measuring system 1
– Direct encoder E2 as position measuring system 2
● Attachment head "A" with encoder E2 is currently mounted on the spindle.
● Position measuring system 2 is the active measuring system:
DB31, ... DBX1.6 = 1
Position measuring system 1 is passive.
● The "Park passive position measuring system" function is:
– not active for position measuring system 1:
– active for position measuring system 2:
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
or
MD31046 $MA_ENC_PASSIVE_PARKING [ 0 ] = 0
MD31046 $MA_ENC_PASSIVE_PARKING [ 1 ] = 1
A3: Axis Monitoring, Protection Zones
3.2 Axis monitoring functions
119