bnp-b2365(eng)b.pdf - 第303页
5. Spindle Adjustment 5 - 58 (2) Setting the multi-step acceleration/deceler ation time constant For acceleration/deceleration control during spin dle synch ronous control, the acceleration/ deceleration time constant ca…
5. Spindle Adjustment
5 - 57
5-3-6 Adjusting the spindle synchronous control
(1) Confirming the default parameters
Confirm that the parameters are correctly set according to the machine specifications. The
parameters are set with the following co nditions for spindles used for synchronous control.
(a) Position loop gain
The same value must be set for the spindle drive units used for synchronous co ntrol.
Spindle synchronous position loop gain : SP010
Spindle synchronous position loop gain 2 : SP189
Spindle synchronous position loop gain 3 : SP190
<Spindle parameters>
No. Abbr. Parameter name Unit
Setting
range
Standard
value
SP010 PGS Spindle synchronization position loop gain rad/s 1 to 100 15
SP177 SPECS* Spindle synchronous specifications HEX
0000 to
FFFF
0000
SP178 VGSP* Spindle synchronous speed loop gain proportional term 0 to 1000 63
SP179 VGSI* Spindle synchronous speed loop gain integral term 0 to 1000 60
SP180 VGSD* Spindle synchronous speed loop gain delay advance term 0 to 1000 15
SP181 VCGS* S pindle synchronous Targ e t va l u e of va r i a b le sp e e d lo o p pr o p or t i o na l g a i n % 0 to 100 100
SP182 VCSS*
Spindle synchronous Change starting speed of variable speed loop
proportional gain
r/min 0 to 32767 0
SP183 SYNV Spindle synchronous Sync matching speed r/min 0 to 1000 20
SP185 SINP Spindle synchronous In-position width 1/16 deg 1 to 2880 16
SP186 SODR* Spindle synchronous Excessive error width (1pulse=0.088deg) pulse 0 to 32767 32767
SP187 IQGS* Spindle synchronous Current loop gain magnification 1 % 0 to 1000 100
SP188 IDGS* Spindle synchronous Current loop gain magnification 2 % 0 to 1000 100
SP189 PG2S Spindle synchronous Position loop gain 2 rad/s 0 to 999 0
SP190 PG3S Spindle synchronous Position loop gain 3 rad/s 0 to 999 0
5. Spindle Adjustment
5 - 58
(2) Setting the multi-step acceleration/deceler ation time constant
For acceleration/deceleration control during spindle synchronous control, the acceleration/
deceleration time constant can be set up to eight steps according to the spindle rotation speed.
The acceleration/deceleration time constant (acceleration time from 0 to limit rotation speed slimit)
for each step is set as shown below based on the time constant set for the first step.
1st stage a cceleratio n/deceleration time constant : TC1 = spt
2nd stage a c celeration/deceleration time con stant : TC2 = spt × spdiv1
3rd stage acceleratio n/de celeration time const ant : TC3 = spt × spdiv2
4th stage acceleratio n/deceleration time constant : TC4 = spt × spdiv3
5th stage acceleratio n/deceleration time constant : TC5 = spt × spdiv4
6th stage acceleratio n/deceleration time constant : TC6 = spt × spdiv5
7th stage acceleratio n/deceleration time constant : TC7 = spt × spdiv6
8th stage acceleratio n/deceleration time constant : TC8 = spt × spdiv7
Multi-step acceleration/decelera tion control for spindle synchronous control (for 4-step setting)
<Spindle specification parameters>
No. Abbr. Parameter name Details Setting range
3049 spt Spindle synchronization acceleration/deceleration
time constant
Set the acceleration/deceleration time
constant for when the spindle
synchronization command's rotation
speed changes during spindle
synchronous control.
0 to 9999
(ms)
3054 sptc1 Spindle synchronization multi-step
acceleration/deceleration changeover speed 1
3055 sptc2 Spindle synchronization multi-step
acceleration/deceleration changeover speed 2
3056 sptc3 Spindle synchronization multi-step
acceleration/deceleration changeover speed 3
3057 sptc4 Spindle synchronization multi-step
acceleration/deceleration changeover speed 4
3058 sptc5 Spindle synchronization multi-step
acceleration/deceleration changeover speed 5
3059 sptc6 Spindle synchronization multi-step
acceleration/deceleration changeover speed 6
3060 sptc7 Spindle synchronization multi-step
acceleration/deceleration changeover speed 7
Set the spindle speed for changing the
Nth step's acceleration/deceleration
time constant.
0 to 99999
(r/min)
TC2
0
TC1=s
p
t
Time
s
p
tc3
Slimit = s
p
tc4
s
p
tc1
s
p
tc2
TC3
TC4
Spindle speed
5. Spindle Adjustment
5 - 59
No. Abbr. Parameter name Details Setting range
3061 spdiv1 Magnification for time constant changeover speed 1
3062 spdiv2 Magnification for time constant changeover speed 2
3063 spdiv3 Magnification for time constant changeover speed 3
3064 spdiv4 Magnification for time constant changeover speed 4
3065 spdiv5 Magnification for time constant changeover speed 5
3066 spdiv6 Magnification for time constant changeover speed 6
3067 spdiv7 Magnification for time constant changeover speed 7
Set the acceleration/deceleration time
constant in the spindle synchronization
multi-step acceleration/deceleration
changeover speed sptc (N) to sptc
(N+1) range.
Set the time that the spindle speed
accelerates from 0 to slmit as a
magnification in respect to the spindle
synchronization
acceleration/deceleration time
constant (spt).
When spdiv7 is set, the range is sptc7
to slimit.
0 to 127