PDF Fanuc Power Mate i-D/H Parameter Manual

B63180EN/02
4. DESCRIPTION OF PARAMETERS
179
8028 Linear acceleration/deceleration time constant or bellshaped acceleration/de-
celeration time constant T
1
for speed commandbased continuous feed under
PMC axis control for each axis
[Data type] Word axis
[Unit of data] msec/1000 min
1
[Valid data range] 0 to 32767
Specify an acceleration/deceleration time constant for speed
commandbased continuous feed under PMC axis control for each axis.
(1) Set the time required in increasing or decreasing the rotation speed of
the servo motor by 1000 min
1
as a time constant for linear
acceleration/deceleration when linear acceleration/deceleration is in
use. Also reset parameter No. 8029 to 0.
(2) Set time constant T
1
for bellshaped acceleration/deceleration when
bellshaped acceleration/deceleration is used in this parameter, and
time constant T
2
in parameter No. 8029. Read the following
descriptions about parameter No. 8029 for explanations about time
constants T
1
and T
2
.
NOTE
1 If both parameter Nos. 8028 and 8029 are reset to 0,
acceleration/deceleration control will not be performed.
2 This parameter is valid when bit 7 (EA2) of parameter No.
8003 is set to 0.
8029 Bellshaped acceleration/deceleration time constant T2 for speed command
based continuous feed under PMC axis control for each axis
[Data type] Word axis
[Unit of data] msec
[Valid data range] 0 to 512
Specify bellshaped acceleration/deceleration time constant T
2
for speed
commandbased continuous feed under PMC axis control for each axis.
Bellshaped acceleration/deceleration time constant T
1
must be set in
parameter No. 8028. If this parameter is 0, acceleration/deceleration for
speed commandbased continuous feed under PMC axis control is linear.
(In this case, the time constant set in parameter No. 8028 is used for linear
acceleration/deceleration.)
NOTE
1 If this parameter is 0, acceleration/deceleration control is not
performed.
2 This parameter is valid when bit 7 (EA2) of parameter No.
8003 is set to 0.

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