Machine Reference Modes (Mn-Ms) - Parker Compax3S025V2 Operating Instructions Manual

Setting up Compax3
4.1.7.2
Position reference
point
86

Machine reference modes (MN-Ms)

Essentially, you can select between operation with or without machine reference.
However, when operating without machine zero, bear in mind that only operation in
continuous mode is possible.
31 position data records are possible for operation without machine zero, whereas
only 15 position data records are possible for operation with machine zero,
because the machine zero proximity switch is read in via the input I7 (X12/14) to
which address 4 was assigned previously.
The zero point for positionings in absolute mode is defined via the machine zero
and the machine zero offset.
Machine reference run
A homing run is required each time after turning on the system for operation with
machine home. A START after "Power on" automatically activates a machine zero
run irrespective of the selected data record.
In a homing run the drive moves to the position value 0 immediately after finding
the home switch. The position value 0 is defined via the homing offset.
© or EnDat Multiturn absolute value sensor as feedback system, the
Using a SinCos
absolute position can be read in over the entire travel range when switching on the
Compax3. This means that a machine zero run is not necessary after the switchig
on (feedback may not be shifted by the absolute range while switched off).
In this case the reference only needs to be established once
at initial commissioning time
after an exchange of motor / feedback system
after a mechanical modification and
after an exchange of device (Compax3); does not apply for the "Store absolute
position in feedback" function.
after a configuration download
by carrying out a machine zero run.
The homing mode 35 "MN at the current position (see page 88)" is appropriate
for this, because it is therewith possible to operate without proximity switch, but any
other homing mode is possible too - if the hardware prerequisites are fulfilled.
When you have once re-established the reference, reset the homing mode to
"without homing run".
Triggering of a machine zero run
A homing run is triggered with address 0 and START.
Note: When operating with homing, the address 0 is reserved for homing.
Homing modes (MN-M)
192-120101 N11 C3I11T11 November 2007
Positioning via digital I/Os