Fanuc Series 15i/150i-MA (Programming) Operators Manual

19.AXIS CONTROL FUNCTIONS PROGRAMMING B-63324EN/03
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19.9.1 Command Specification (G80.5, G81.5)
Format
G81.5
p P
t T
Ll0
β
β
j
; Synchronization started
Amount of travel Amount of travel
relative to the relative to the
master axis slave axis
G80.5 β0 ; Synchronization canceled
Explanation
- Master axis and slave axis
The reference axis of synchronization is referred to as the master axis,
while the axis of synchronized movement is referred to as the slave axis.
Taking a hobbing machine, which moves a workpiece in sync with the
rotating tool, as an example, the tool axis is the master axis and the
workpiece axis is the slave axis.
The master axis and slave axis of a machine depend on the
configuration of the machine. For details, refer to the manual supplied
by the machine tool builder.
- Start of synchronization
Synchronization is started by specifying the ratio of the amount of slave
axis movement to the amount of master axis movement.
The amount of master axis movement is to be specified using one of the
methods described below.
1. Master axis speed
Tt: Specify the master axis speed in t(1 t 1000)
2. Number of pulses for the master axis
P p : Specify the number of pulses for the master axis in p
(1 p 999999999)
Specify this number with four pulses equaling one A/B phase cycle.
The amount of slave axis movement is to be specified using one of the
methods described below.
1. Amount of slave axis movement
βj : Specify the address of the slave axis in β.
Specify the amount of slave axis movement in i with the least
command increment. (The range of valid settings is the same
as for movement along an ordinary axis.)
When j = 0 is specified, use of method (2) below is assumed
In this case, an alarm is issued if L is not specified.
2. Slave axis speed
β0 L
±l : Specify the address of the slave axis in β.
Specify the slave axis speed in l(1 l 21)

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