Siemens SINUMERIK 840D sl Function Manual page 116

A3: Axis Monitoring, Protection Zones
3.2 Axis monitoring functions
Activation / deactivation
Activation
The passive position measuring system of a machine axis is parked under the following
conditions:
● "Park passive position measuring system" function is active for the measuring system:
MD31046 $MA_ENC_PASSIVE_PARKING[<n>] = 1
with <n> = 0 (position measuring system 1) or 1 (position measuring system 2)
Note
MD31046 is not active:
● for axes with fewer than two encoders:
● for simulated encoders:
Note
For position measuring systems, which are used as motor measuring systems, the "Park
passive position measuring system" function should be deactivated (MD31046 = 0)!
and
● The user sets the following NC/PLC interface signal to "0":
DB31, ... DBX1.5 (position measuring system 1) = 0
or
DB31, ... DBX1.6 (position measuring system 2) = 0
The controller then sets the status for the activation state of the position measuring system to
"0":
DB31, ... DBX102.5 (position measuring system 1 activated) == 0
or
DB31, ... DBX102.6 (position measuring system 2 activated) == 0
The position measuring system is now no longer monitored and updated.
Deactivation
"Park" is deactivated if the user activates the position measuring system:
DB31, ... DBX1.5 (position measuring system 1) = 1
or
DB31, ... DBX1.6 (position measuring system 2) = 1
The controller then sets the status for the activation state of the position measuring system
back to "1":
DB31, ... DBX102.5 (position measuring system 1 activated) == 1
or
116
MD30200 $MA_NUM_ENCS < 2
MD30240 $MA_ENC_TYPE = 0
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
Basic Functions