A2: Various NC/PLC interface signals and functions
1.2 NC/PLC interface signals
Basic Functions
Function Manual, 09/2011, 6FC5397-0BP40-2BA0
49
DB31, ... DBX9.0 / 9.1 / 9.2 (controller parameter set)
Request for activation of the specified controller parameter set.
Parameter-set changeover must be enabled via the machine data (not required for spindles):
MD35590 $MA_PARAMSET_CHANGE_ENABLE = 1 or 2
More information about parameter set changeover can be found in:
References:
/FB1/Function Manual, Basic Functions; Spindles (S1);
Chapter: Configurable gear adjustments > parameter set selection during gear stage change
Parameter set changeover when machine axis is in motion
The response to a parameter-set changeover depends on the consequential change in the closed-loop control
circuit gain factor Kv:
MD32200 $MA_POSCTRL_GAIN (KV-Factor) (KV-Factor)
• "Identical servo gain factors" or "position control not active":
The NC responds immediately to the parameter-set changeover. The parameter set is also changed during
the movement.
• "Non-identical servo gain factors" or "position control active":
In order to effect a changeover as smoothly as possible, changeover is not activated until the axis "is
stationary", i.e. once the parameterized zero speed has been reached or undershot:
DB31, ... DBX61.4 = 1 (axis/spindle stationary)
MD36060 $MA_STANDSTILL_VELO_TOL (threshold velocity/speed 'axis/spindle stationary')
Parameter set changeover from the parts program
For parameter-set changeover from the parts program, the user (machine manufacturer) must define
corresponding user-specific auxiliary functions and evaluate them in the PLC user program. The PLC user
program will then set the changeover request on the corresponding parameter set.
More information about auxiliary function output can be found in:
References:
/FB1/Function Manual, Basic Functions; Auxiliary function output (H2)
DB31, ... DBX9.3 (disable parameter-set default setting by NC)
Parameter-set changeover request will be ignored.
Controller parameter set DBX9.2 DBX9.1 DBX9.0
1 000
2 001
3 010
4 011
5 100
6 101
7 110
8 111
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