YASKAWA YASNAC J50 Connecting Manual page 161

The following diagram shows an example of the S5-digit analog
outputs when the spindle maximum/minimum speeds are clamped
by these parameters:
SPINDLE MOTOR
SPEED OUTPUT
+1OV !
.4 .1
/'
I
/.
t
,,/[:
/
,
:, ; f ;
r[ : ~ ,
OUTPUT FOR
/
.-.
SINV INPUT
- ~,l-.-.
, —...
,.
.
,
,/' ,,-
-..
.
..
—.
/' ,. ,-
/ // ., .-
< .-
/' ,/', /;,
,', / /". -
,;////, . ./
.,-+
Ov K,
GR1 REV GR2 REV
,,,<, I
n ><
m Iv< v VI
,. ,.
\,\ ,,. ,,
\ \ .,
'\
x., :
\
'\
.
–-"7 '": " ':: 'x..
OUTPUT
FOR
SINV INPUT
I
+
'.
–1OV
J
'\ J
t
Notes:
1. The spindle motor speed command output is obtained from the
following relation:
(Spindle speed command) x (4095 or 10 V)
(4095 or 10 V output speed in spindle gear range determined by GR
1 through GR4 inputs: parameters #6271 through #6274.)
2. With the spindle motor speed motor analog output, the polarity
may be inverted by processing M03 (spindle forward rotation) or
M04 (spindle reverse rotation) within the control by using para-
meter SDASGNI or SDASGN2 (#6006, D6 or D7).
#6006, D6 #6006, D7 M03 Output
M04 Output
o 0
+
+
1 lo 1-1-
0
111+1+
1 1
1: Closed, O: Open
When SINV input is closed, the above polarities are inverted.
26.2.42
GEAR SELECTION COMMAND lNPUT/
OUTPUT (GRL, GRH, GRA, GRB, SF, SFIN) S4-DIGIT
NON-CONTACT OUTPUT OR S5-DIGIT ANALOG
OUTPUT
After executing S command, the control outputs SF signal and
checks maximum gear speed designation (parameter #6266 to
#6269) at the same time, and output gear selection command (GRL,
GRH) corresponding to gear speed.
. ,.
0
G
r
\
/
----
REV
J ... —
..
,,-
,...-
GF
REv SPINDLE
— SPEED
1
COMMAND
.-. .
+.,
Fig. 20.27
The control compares the outputted gear signal with current gear
selection and sends back SFIN when they meet. If they are
different, the control performs gear selection sequence. When the
constant speed output is required for gear selection, GRO signal
contact is closed. The control immediately outputs constant speed
corresponds to GRO.
Input gear input signal (GRA, GRB) until gear selection is
completed and send back spindle gear selection completion signal
(SFIN) on completion of gear selection. The control outputs
specified spindle speed command as non-contact or D/A output.
Send back FIN signal when spindle speed agrees with command.
S COMMAND1
(G RL/GRH)
GEAR SELECTION~
z';'=
~v
I
\/
I
I
'f---i
Fig. 20.28