Detailed Description
2.1 General functionality
Basic logic functions: Travel to fixed stop (F1)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
27
NST DB31, ... DBX62.4 ("Activate travel to fixed stop").
The machine data:
MD37060 $MA_FIXED_STOP_ACKN_MASK
must contain the value zero for signal deselection without motion stop.
Without ramp
The torque limit is changed without taking into account the ramp if:
• FXS is activated with (FXS[]=1), to make sure that the reduction is activated
immediately (especially for synchronized actions).
• The drive needs to be de-energized as quickly as possible in the event of a fault.
Selection of FXS with G64
In the machine data:
MD37060 $MA_FIXED_STOP_ACKN_MASK
Bit 0 must be = 0 (Do not wait for PLC-input signal "Enable travel to fixed stop"), since the
selection of FXS may not initiate a motion stop.
Modify the torque FXST
The clamping torque can already be modified when approaching the stop.
The torque limit FXST acts in addition to the acceleration limitation with ACC.
The new torque taking into account the ramp
(MD37012 $MA_FIXED_STOP_TORQUE_RAMP_TIME)
becomes active one interpolation cycle after the change in the drive.
A change of the effective torque can be checked by reading the synchronized action variable
$VA_TORQUE[axis].
2.1.6 Travel with limited moment/force FOC:
Function
For applications in which torque or force are to be changed dynamically depending on the
travel or on the time or on other parameters (e.g. pressing), the following functionalityFOC
(Force Control) is provided.
Force/travel or force/time profiles are thus possible using the "Interpolation cycle" resolution.
The function allows torque/force to be modified at any time using synchronized actions.
The function can be activated modally or blockrelated.
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