Siemens SINUMERIK 810D Programming Guide

10
Motion-Synchronous Action 08.97
10.4 Actions within s
y
nchronized actions
10
840D
NCU 572
NCU 573
810D 840Di

Siemens AG 2000. All rights reserved
10-370
SINUMERIK 840D/840Di/810D/FM-NC Programming Guide Advanced (PGA) – 04.00 Edition
10.4.12 Clearance control with limited compensation
Programming example
Integrating calculation of the distance values with
boundary check
$AA_OFF_MODE = 1
Important:
The loop gain of the overlying control loop depends
on the setting for the interpolation cycle.
Remedy: Read MD for interpolation cycle and take it
into account.
Note:
Restriction of the velocity of the overlying interpolator
with MD 32020: JOG_VELO
with an interpolation cycle of 12 ms:
Velocity:
0 120
06
06
.
.
/.
min
/
mm
ms
mV
m
V=
Subroutine: Clearance control ON
Z
X
Single-dimension distance control
0.2...0.5 mm
Distance
sensor
e.g. Metal sheet
1 V
Upper limit
Overlaid velocity
Lower limit
-10V
+10V
0.6 m/min
%_N_AON_SPF
Subroutine for clearance control ON
PROC AON
$AA_OFF_LIMIT[Z]=1
Determine limiting value
FCTDEF(1, -10, +10, 0, 0.6, 0.12)
Polynomial definition
ID=1 DO SYNFCT(1,$AA_OFF[Z],$A_INA[3])
Clearance control active
ID=2 WHENEVER $AA_OFF_LIMIT[Z]<>0
DO $AA_OVR[X] = 0
Disable axis X when limit value is overshot
RET
ENDPROC
Subroutine: Clearance control OFF
%_N_AOFF_SPF
PROC AOFF
Subroutine for clearance control OFF
CANCEL(1)
Cancel clearance control synchronized action
CANCEL(2)
Cancel off limits check
RET
ENDPROC

Siemens SINUMERIK 810D Specifications

General

Brand	Siemens
Model	SINUMERIK 810D
Category	Control Unit
Language	English