V1: Feedrates
17.4 Feedrate control
Basic Functions
1406 Function Manual, 09/2011, 6FC5397-0BP40-2BA0
17.4.10 Programmable singleaxis dynamic response
Single axes
Single axes can be programmed in the part program, in synchronized actions and via the PLC:
Dynamic response
The dynamic response of an axis is influenced by:
• MD32060 $MA_POS_AX_VELO (positioning axis velocity)
The effective positioning axis velocity can be changed:
- Part program/synchronized action: Axial feedrate FA or percentage feedrate override OVRA
- PLC: Specification of FRate or overwriting the axial override
• MD32300 $MA_MAX_AX_ACCEL (maximum axis acceleration)
The effective maximum axis acceleration can be changed:
- Part program indirectly: Writing the machine data with subsequent NewConfig
- Part program directly: Percentage acceleration override ACC
- Synchronized actions indirectly: Writing the machine data and initiating an ASUB for the activation of
NewConfig
- Synchronized actions directly: Percentage acceleration override ACC (cannot be preset by the PLC).
Via the PLC, the same options apply as in synchronized actions.
• Commands: BRISKA, SOFTA, DRIVEA, JERKA
Cannot be programmed in synchronized actions (only directly using ASUB).
Cannot be specified by the PLC (only indirectly via ASUB).
• Active servo parameter set
The active parameter set can be changed:
- Part program/synchronized action: SCPARA
- PLC: DB31,… DBX9.0 - 9.2 (controller parameter set)
Part program:
POS[Axis]=...
POSA[Axis]=...
SPOS[Axis]=...
SPOSA[Axis]=...
OS[Axis]=...
OSCILL[Axis]=...
Synchronized actions:
EVERY ... DO
POS[Axis]=...
SPOS[Spindle]=...
MOV[Axis]=...
PLC: FC18
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