Machine data
2.4 Axis-specific machine data
Parameter Manual
238
Operating Instructions, 08/2013, 6FC5397-8EP40-0BA0
Description:
MD32630 $FFW_ACTIVATION_MODE can be used to define whether the feedforward
control for this axis/spindle can be switched on and off by the part program.
0 = The feedforward control cannot be switched on or off by the high-level
language elements FFWON and FFWOF respectively.
For the axis/spindle, the state specified by MD32620 $MA_FFW_MODE is there-
fore always effective.
1 = The feedforward control can be switched on and off by the part program
with FFWON and FFWOF respectively.
The instruction FFWON/FFWOF becomes active immediately
2 = The feedforward control can be switched on and off by the part program
with FFWON and FFWOF respectively.
The instruction FFWON/FFWOF does not become active until the next axis stand-
still
The default setting is specified by the channel-specific MD20150
$MC_GCODE_RESET_VALUES. This setting is valid even before the first NC block
is executed.
Notes:
The last valid state continues to be active even after Reset (and therefore
also with JOG).
As the feedforward control of all axes of the channel is switched on and off
by FFWON and FFWOF respectively, MD32630 $MA_FFW_ACTIVATION_MODE should be
set identically for axes interpolating with one naother.
Switching feedforward control on or off while the axis/spindle is traversing
may cause compensation operations in the control loop. Interpolating axes are
therefore stopped by the part program if such switching operations occur
(internal stop Stop G09 is triggered).
Related to:
MD32620 $MA_FFW_MODE
MD20150 $MC_GCODE_RESET_VALUES
32630 FFW_ACTIVATION_MODE A07, A09 K3,G2
- Activate feedforward control from program BYTE Reset
CTEQ
808d-me42 - 0 0 2 0/0
808d-me62 - 0 0 2 1/1
808d-te42 - 0 0 2 0/0
808d-te62 - 0 0 2 1/1
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