Parker Products COMPAX-M /-S (L) - Manual (Page 149)

Interfaces
Digital inputs and outputs
149
Unit
hardware
Connector
assignment / cable
Technical data
Configuration
Positioning and control functions
Optimization
functions
Interfaces
Accessories /
options
Status
Parameter
Error list
Input I5
♦ 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.
♦ 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").
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").
Input SHIFT I2
♦ 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
♦ 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.
START
Temporal course of a start sequence:
O4 (ready for start) = "1" ?
yes
no
I5 (start signal) = "1"
O4 (ready for start) = "0" ?
I5 (start signal) = "0"
yes
no
drive to MN
Note!
STOP
Find MZ
Approach RZ
Teach in real
zero (Teach Z)