- Parker Compact Servo Controller User Guide

Interfaces
Digital inputs and outputs
149
Unit
hardware
Connector
assignment / cable
Technical dataConfigurationPositioning and
control functions
Optimization
functions
InterfacesAccessories /
options
StatusParameterError 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)