
3/18
EDIT
DATE
DESIG.
DESCRIPTION
CUST.
SHEET
TITLE
DRAW.NO.
FANUC Power Mate i-MODEL H
CONNECTION MANUAL (FUNCTION)
High Speed Skip function
B-63173EN-1/01-26
01
Pnc :: Position where an axis is actually stopped after detecting a skip
signal. [mm/inch]
P :: Position to be measured [mm/inch]
Q :: Servo delay [mm/inch]
Under the conditions shown above, the NC calculates the following
equation according to the parameter SEA (bit 0 of parameter No. 6201)
or the SEB (bit 1 of parameter No. 6201):
P = Pnc – Q
As for type A (SEA bit 0 of parameter No. 6201 is “1”), the deviation is
calculated by:
Q = Fm x 1/60 x (á x Tc/1000+Ts/1000)
Fm :: Feedrate [mm/min or inch/min]
Tc :: Cutting time constant [msec] (Parameter No. 1622:)
If parameter SKF (bit 7 of parameter No. 6200) = 0, then Tc = 0.
Ts :: Servo time constant [msec]
Assuming that the loop gain (parameter No. 1825) is G (unit: 1/s),
then Ts = 1000/G
á ::=1 in case exponential acceleration/deceleration
=1/2 in case linear acceleration/deceleration after interpolation
Movement between this command and former/latter blockMovement between this command and former/latter block
After the in-position check is done between the block of this command
and the former/latter block, the next block is started.
NoteNote
In case ofIn case of type A (parameter SEA ( type A (parameter SEA (bit 0 of bit 0 of No. 6201No. 6201)=1),)=1), the the
skip signalskip signal must be turned on when the axis moves at constantmust be turned on when the axis moves at constant
this command
latter block
Speed
Time
former block
this command
Speed
Time