
8.MULTI-PATH CONTROL B-63943EN-1/02
- 952 -
Each signal type is applicable to the following spindle configurations.
Signal type Controlling the
spindle
belonging to
path 1 from path
1 or 2
Controlling the
spindle
belonging to
path 1 or 2 from
path 1 or 2
Controlling the
spindle
belonging to any
path from any
path
Signal type A
{
× ×
Signal type B
{ {
×
Signal type C
{ { {
With signal types A and B, spindle commands cannot be issued from
path 3 or after to another path.
There are restrictions on signal types A and B such as that spindle
commands cannot be issued from path 3 or after to another path.
To change the signal type afterward, the using method and meaning
depending on the signal type are changed and other changes including
the existing PMC ladder are also required. The use of signal type C
is recommended.
NOTE
When the path spindle control function is used, the
spindle gear selection method must be the T type.
For a machining center system, set bit 4 (GTT) of
parameter No. 3706 to 1 to select the T type as the
spindle gear selection method.
- When multiple spindles belong to individual paths
Multispindle control can be used simultaneously to issue spindle
commands to any spindle belonging to individual paths.
When multispindle control is not used, path spindle control is valid
only for the 1st spindle belonging to individual paths.
The following two methods are available for selecting spindle
commands in multispindle control:
1) Selecting spindle commands using signals (Bit 3 (MPP) of
parameter No. 3703 is set to 0.)
2) Selecting spindle commands using address P (Bit 3 (MPP) of
parameter No. 3703 is set to 1.)
When spindle commands are selected using address P, processing
including path spindle command selection is performed in a multipath
system. For this reason, spindle command selection using signals is
invalid (this selection is made by spindle selection signals SWS1 to
SWS4 <Gn027.0 to Gn027.2 and Gn026.3> and path spindle
command selection signals SLSPA <Gn063.2>, SLSPB <Gn063.3>,
SLSPC <Gn404.0>, and SLSPD <Gn404.1>).
Only one address P can be specified together with a spindle command
and there is a one-to-one correspondence between address P values
and spindles. For this reason, a spindle command in the same block
cannot control multiple spindles simultaneously.