Yaskawa YASNAC PC NC I/O Signal Function Manual - Manual (Page 31)

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YASNAC PCNC I/O Signal Function Manual Chapter 4: M, S, T, and B Functions
Fig. 4.8 S5-digit Analog Outputs Clamped by the Maximum and Minimum Spindle
Speeds Param Setting
IMPORTANT!
1. The spindle motor speed command output is calculated by the following formula:
Or, spindle speed that corresponds to 10V output: #1408 to #1411
2. When analog signals appear for the spindle motor, the polarity can be changed by inter-
nally processing M03 (spindle forward rotation) and M04 (spindle reverse rotation) by
the NC.
GR1REV GR2REV GR3REV GR4REV
Spindle Motor Speed
Command Output
Spindle Speed
+10V
0V
Output when
SINV input is
“closed”
Command
€ ó ú ÷ ö ø í
(Spindle speed command) x (2
23
or 10V)
Spindle gear ramge determined by the
.