Parker Products COMPAX-M /-S (L) manual Comparators during positioning Posr Output, 103

Positioning and control functions

Comparators during positioning [POSR OUTPUT]

8.4.14 Comparators during positioning [POSR OUTPUT]

Unit hardware

/ cable

POSR

OUTPUT

Syntax:

Setting and resetting freely assignable outputs within a positioning process. A maximum of 8 comparators can be set in one positioning process. The comparator value is specified as a relative dimension. It is referenced to the positioning start point.

POSR value OUTPUT output = 1/0

Value: only positives value are permitted (unit corresponds to P90); two digits after the decimal points (three for inches) a control parameter (P40..P49) or a variable (V1..V39)

e.g. POSR .P40 OUTPUT A7=1.

Connector	assignment
Technical data

Examples: N001: ACCEL 250		Acceleration and braking time = 250 ms
N002: SPEED 50		Starting velocity = 50%
N003: POSR 150 OUTPUT A8=1		1st comparator at start position 150, sets output O8 to
		1.
N004: POSR 300	OUTPUT A7=1	2nd comparator at start position 300, sets output O7 to
		1.
N005: POSR 500	OUTPUT O7=0	3rd comparator at start position 500, sets output O7 to
		0.
N006: POSR 900	OUTPUT O8=0	4th comparator at start position ± 900, sets output O8 to
		0.
N007: POSA 1000		Positioning command to 1000 (Position +1000 is
		approached; the travel-dependent comparators are set
		once the relative positions have been reached).
N008: POSR 200 OUTPUT O7=1		Prepares new comparators.

Outputs O1 to O6 can also be used as comparators once enabled via P225 (see Page 139).

Diagram of specified example for POSR OUTPUT

						starting position				POSA 1000
-900		-500	-300	-150				150	300		500			900
position relative to starting position
-1000 -900 -800 -700	-600 -500	-400	-300 -200	-100	0	100	200	300	400	500	600	700	800	900 1000
absolute position

A8

A7

Diagram of example using POSA -1000 as positioning

	POSA 1000					starting position
-900		-500	-300	-150				150	300		500			900
position relative to starting positionen
-1000 -900 -800 -700	-600 -500	-400	-300 -200	-100	0	100	200	300	400	500	600	700	800	900 1000
absolute position
						A8
						A7

103

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