
B-63783EN-1/01 9.SPINDLE FUNCTION
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Signal
Spindle control unit signals for the serial spindle
<G200 to G201><G226 to G229><F228 to F231>:for the first serial spindle
<G202 to G203><G234 to G237><F244 to F247>:for the second serial spindle
<G204 to G205><G210 to G213><F196 to F199>:for the third serial spindle
<G206 to G207><G218 to G221><F212 to F215>:for the fourth serial spindle
These addresses are on the CNC. Actually, however, they are
input/output signals for the spindle control unit for the serial spindle.
For details of the signals belonging to these addresses, refer to the
manuals for the serial spindle:
FANUC SERVO AMPLIFIER αi series Descriptions (B-65282EN)
FANUC AC SPINDLE MOTOR αi series Descriptions (B-65272EN)
FANUC SERVO MOTOR αi series Maintenance Manual (B-65285EN)
Spindle control confirmation signal SPN0,SPN1,SPN2<F155#4,#5,F154#6>
[Classification] Output signal
[Function] Posts the currently selected spindle number. This signal consists of
three binary code output signals. A spindle number and the signal have
the following relationship:
{
å
=
×=
2
0i
i
SPN
i
2 number Spindle
[Output condition] This signal is always output.
Example: When changing the spindle selection during automatic
operation
M61: M code selecting the first spindle
M62: M code selecting the second spindle
Before using these M codes, set them in parameter Nos. 2411 to 2420
as M codes for non-buffering.
When M61 or M62 is output, the PMC switches from one spindle to
another. An example of switching between spindles is explained
below:
1 Change those portions that require mechanical switching.
2 Change the data used for, for example, spindle speed calculation
(such as the number of gear stages, and the minimum/maximum
speed for each gear).
3 Change the signals input/output to and from the CNC (such as the
spindle speed command signal and spindle motor command
voltage signal).
4 Change the setting of parameter No. 5850 for spindle selection by
using functions such as the NC window function.
5 After completing all the processing required for spindle switching,
return completion signal FIN for M61 or M62.