YASKAWA YASNAC J50 Connecting Manual page 121

19.2.35 S4-DIGT COMMANDS (DAS, SGS1 , GR1
THROUGH GR4, SINV, AND SINVA) lNPUTS/
OUTPUTS (Cent'd)
(2)
Time Chart of Analog Voltage Output, SINV Input, and SINVA
Output for Spindle Motor Speed
ANALOG
VOLTAGE
OUTPUT
SINV INPUT
~t
1
SINVA OUTPUT
1
I
II
A
100
ms
MAX
Fig. 19.13
(3) Spindle Maximum/Nfinimum Speed Clamp
The spindle maximum/minimum speed at each gear raoge may
be set using the following parameters:
Table 19.11
Parameter Function
No. in Fig
below
MACGRI Spindle maximum speed when "GR1" ,,
(#6266) I inuut is closed.
Iv
MACGR2
Spindle maximum speed when "GR2"
(#6267)
VI
input is closed.
MACGR3 Spindle maximum speed when "GR3"
(#6268)
vu
input is closed.
MACGR4
Spindle maximum speed when "GR4"
(#6269)
m
input is closed.
MACGR1 Spindle maximum speed when "GRI"
(#6276)
I
inrmt is closed.
MACGR2 I Spindle minimum speed when "GR2" \ "
~
Spindle minimum speed when "GR3"
Spindle minimum speed when "GR4"
The following diagram shows an example of the S4-digit analog
outputs when the spindle maximurn/minimum speeds are clamped
by these parameters:
SPINDLE MOTOR
SPEEO OUTPUT
+1OV
I
OUTPUT
FOR
SINV
INPUT
Ov
~W&PUT
SINV
INPUT
I
–1OV
Notes:
1. The .
Fig. 19.14
)indle motor sueed command outnut is obtained from the
following relation:
(Spindle speed command) x (1OV)
(Spindle gear range spindle maximum speed determined by GR1
through GR4 inputs: parameters #6271 through #6274)
2. With the spindle motor speed command analog output, the polarity
may be inverted by processing M03 (spindle forward rotation) or
M04 (spindle reverse rotation) within the control by using
parameter SDASGN1 or SDASGN2 (#6006 D6 or D7).
Table 19.12
SDASGNI
SDASGN2
M03
M04
(#6006 D,) (#6006 D,)
output
output
o 0 + +
1 0
0 1 +
1 1 +
When SINV input is closed, the above polarities are inverted.
3. When spindle S Command Stop (SSTP) input is closed, a value
other than those described earlier may be outputted for the spindle
motor speed command. For details, refer to "SPINDLE S
COMMAND STOP (SSTP) INPUT,"
4. When two or more of GR1 through GR4 inputs are closed or not
closed, the control determines the gear ranges as follows:
Table 19.13
GR1 input GR2 input GR3input GR4 input GearRange
o 0 0 0
1 1
0 0
Gearrange 1
1 0
1
0
0
1
1
0
I
Gearrarwe2
1 1 1
0
1 0
Gearrange 1
0 1
0
1
0
1 I Gearrange2
1 1
0 1
Gesr range 1
O:Input, 1: Input closed
117