Siemens SINUMERIK 840D sl Function Manual page 72

Detailed description
3.7 Actions in synchronized actions
Figure 3-6
Determining the parameters of the FCTDEF function:
FCTDEF(<Poly_No>,<Lo_Limit>,<Up_Limit>,a
<Poly_No>:
<Lo_Limit>:
<Up_Limit>:
a :
0
a
1
a
2
a
3
Calculation of the override value:
SYNFCT(<Poly_No>,<SysVar_Out>,<SysVar_In>)
<Poly_No>:
<SysVar_Out>:
<SysVar_In>:
Programming:
Program code: %_N_AON_SPF
PROC AON
FCTDEF(1, 0.2, 0.5, 0.35, 1.5 EX-2)
ID=1 DO SYNFCT(1,$AA_OFF[Z],$A_INA[3])
ID=2 WHENEVER $AA_OFF_LIMIT[Z]<>0 DO $AA_OVR[X] = 0 ; Limit value test
RET
ENDPROC
Program code: %_N_AOFF_SPF
PROC AOFF
CANCEL(1)
CANCEL(2)
RET
72
Clearance control
= 1 (example)
= 0.2
= 0.5
Polynomial: f(x) = a
10 / x = 20 / 0.3 ⇒ a
= 0.15 mm / 10 V = 1.5 * 10
= 0 (not a square component)
= 0 (not a cubic component)
= 1
$AA_OFF (overlaid movement of an axis)
$A_INA (analog input)
,a ,a ,a
0 1 2 3
+ a x +a x + a x
2 3
0 1 2 3
= x + 0.2 = 0.15 + 0.2 = 0.35
0
mm/V
-2
Comment
; Clearance control "ON"
; Polynomial definition
; Clearance control
Comment
; Clearance control "OFF"
; Delete clearance control
; Delete limit value check
Function Manual, 08/2018, 6FC5397-5BP40-6BA2
)
Synchronized actions