636 HEIDENHAIN Technical Manual MANUALplus 620
Activate axis An axis can only be moved in a closed loop after it has been activated with the
MP_axisMode machine parameter.
For commissioning, use the MP_testMode parameter to switch an axis to test
mode. In this operation, the interpolator views the axis as a fully-functional
axis, but the nominal values are not passed on to the drive motor. There is only
an internal nominal-to-actual transfer. Such an axis does not need to have all
the hardware connections made (position and speed input, PWM output), but
can be "positioned."
For the linear axes X, Y and Z, the default value Active of the parameter
MP_axisMode must not be changed to NotActive; otherwise an error
message will be issued. If you want to deactivate one of these axes, you
should set the parameter MP_testMode to True.
MP_axisMode
Axis operating mode
Available from NCK software version: 597 110-01.
Format: Selection menu
Selection: NotAllowed
Reserved, do not use!
NotActive
Axis does not exist
Active
Axis physically present
Virtual
Virtual axis for superimposed movements
PlcControlled
e.g. for encoded spindles; axis is controlled solely by the PLC
Default: Active
Access: LEVEL3
Reaction: RESET
MP_testMode
Axis in test mode
Available from NCK software version: 597 110-01.
Format: Selection menu
Selection: TRUE
Test mode for commissioning, i.e. the axis needs not be
connected
FALSE
Test mode not active.
If MP_axisMode = Active: Axis must be connected electrically
Default: FALSE
Access: LEVEL3
Reaction: RESET
Please note that hanging axes cannot be supported in test mode. The PLC
must ensure that these axes are braked in test mode.
Hanging axes need 100 % weight compensation.
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