Parker Products COMPAX-M /-S (L) manual Find MZ, Approach RZ, Input Shift

Interfaces

Digital inputs and outputs

START Input I5

Unit hardware

cable

♦Starts the program data record at WAIT START, after Power On and after STOP.

♦Performs the next data records (commands) before the next WAIT START command, an END instruction or a STOP or BREAK signal.

♦O4 "Ready for start" is reset.

Note! ♦ Once a positioning process has been interrupted by STOP (I6="1"), the process can be continued, when START (I5="1") is present, using a descending flank at STOP (I6="0").

Temporal course of a start sequence:

drive to MN

O4 (ready for start) = "1" ? no yes

I5 (start signal) = "1"

O4 (ready for start) = "0" ? no yes

I5 (start signal) = "0"

Connector assignment /

Technical data

Configuration

STOP	Input I6
	♦	The positioning process is interrupted using "1" and the axis is stopped in a
		controlled manner.
	♦	O4 "Ready for start" and O6 "Idle after stop" ="1".
	♦	A new start command is required to complete the positioning process. When
		START is present, resetting the STOP signal is sufficient (I6="0").
Find MZ	Input SHIFT I2

Positioning and control functions

Approach RZ

♦Finds the machine zero point (when using reversing initiators: process velocity: P3 - the direction of the search can be determined using the P3 sign ; ramp time: P7).

♦Once the MZ is reached, output O3 "Machine zero approached" is set. This remains set until another "Find MZ" order is issued.

♦Output O5 "Programmed position reached" ="0".

♦The data record indicator is reset to N001.

♦Reference travel, prompted by the digital inputs, interrupts a positioning command specified by the interfaces (POSA, POSR, LOOP).

Input SHIFT I3

Optimization	functions
Interfaces
/

Teach in real zero (Teach Z)

♦The axis travels to the real zero point (process velocity: P4; ramp time: P8).

♦O4 "Ready for start" ="0" until RZ is reached.

♦Output O5 "Programmed position reached" ="0", and once real zero is approached ="1".

♦Data record indicator is reset to N001.

♦In continuous mode the axis does not move; the data record indicator is set to N001.

Input SHIFT I4

♦The current position of the axis is used as the reference point (real zero) for all positioning instructions; i.e. P1 is modified.

♦The data record indicator is set to 1.

♦The real zero is stored protected against power failure.

♦O4 "Ready for start" is not modified.

♦The teach in function can be switched off using P211.

♦The function does not operate in continuous mode.

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Status

Parameter

list

149

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