PDF Fanuc Power Mate i-D/H Parameter Manual

4. DESCRIPTION OF PARAMETERS
B63180EN/02
44
#7
1602
#6
LS2
#5 #4 #3
BS2
#2 #1 #0
FWB
[Data type] Bit
FWB Cutting feed acceleration/deceleration before interpolation
0 : Type A of acceleration/deceleration before interpolation is used.
1 : Type B of acceleration/deceleration before interpolation is used.
Type A: When a feedrate is to be changed by a command,
acceleration/deceleration starts after the program enters the
block in which the command is specified.
Type B: When a feedrate is to be changed by a command, deceleration
starts and terminates at the block before the blcock in which the
command is specified.
When a feedrate is to be changed by a command, acceleration
starts after the program enters theblock in which the command
is specified.
F1
F2
F3
Feedrate
Time
N1 N2
F1
F2
F3
Feedrate
Time
N1 N2
Type A
Specified feedrate
Feedrate after acceleration/
deceleration before inter-
polation is applied
Specified feedrate
Feedrate after acceleration/
deceleration before inter-
polation is applied
Point 1
<Example of a deceleration process> <Example of a acceleration process>
Type B
To change the feedrate from F3 to F2, it is necessary to start reducing the feedrate at point 1.
BS2,LS2 The following table lists the acceleration/deceleration values after
interpolation is applied, for cutting feed in the advanced preview feed
forward mode.
BS2 LS2 Acceleration/deceleration
0 0 Exponential accelaration/deceleration after interpolation
0 1 Linear accelaration/deceleration after interpolation
1 0 Bellshaped accelaration/deceleration after interpolation
#7
1605
#6 #5 #4 #3 #2 #1
TCE
#0
[Data type] Bit
TCE The time constant expansion function is:
0 : Not used (The maximum time constant becomes 8000.)
1 : Used (The maximum time constant varies depending on how many
controlled axes are used.)

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