
B--63003EN--1/02
9. SPINDLE SPEED FUNCTION
881
Serial spindle can be connected three in this three--spindle serial control.
The third serial spindle operates as an ordinary third analog spindle. For
the third as well as the first and second serial spindles, all the functions
supported by the serial spindle control unit (spindle orientation, spindle
output switching, and spindle switching) can be used.
When the third spindle orientation function is used, stop--position
external--setting type orientation can also be performed for the third
spindle.
This section provides information related to the third serial spindle added
by the three--spindle serial output function. The spindle configuration,
supported functions, and related signal addresses, parameters, alarms,
and diagnosis screens are explained.
For details of the spindle control method and spindle--related functions,
refer to the description of each function.
The relationships between the spindle control interfaces and spindle
configuration are shown below. (This table relates to a table that appears
in Section 9.2.)
Spindle serial
output
Spindle
analog output
Three --spindle
serial output
First spindle Second spindle Third spindle
f f × First serial spindle
The PC can be used.
Second serial spindle
The PC can be
used(*).
Analog spindle
The PC cannot be
used.
f × × First serial spindle
The PC can be used.
Second serial spindle
The PC can be
used(*).
× f × Analog spindle
The PC can be used.
f × f
(*1)
First serial spindle
The PC can be used.
Second serial spindle
The PC can be
used(*).
Third serial spindle
The PC cannot be
used.
× × × Spindle function (S code output)
! Controlled by the PMC via an external interface.
D PC = Position coder
D (*) : The multi--spindle function is required to enable the use of the
position coder for the second spindle.
D For an explanation of how to control the speed of the second and third
spindles, see Sections 15.4 and 9.10.
9.15
THREE--SPINDLE
SERIAL OUTPUT
General