Consulting Signals For Axes And Spindles - Fagor CNC 8060 Installation Manual

6.2
6.
CNC 8060
CNC 8065
(R : 1709)
EF
·400·

Consulting signals for axes and spindles.

When the spindle is working in closed loop (M19 or G63), it behaves like an axis.
The signal names are generic. Replace the word (axis) with the spindle name or with the
name or logic number of the axis.
For example, the name of the ENABLE(axis) mark for a machine with the X, Y, Z, Z2, B axes
and spindle S.
ENABLEX, ENABLEZ2, ENABLEB, ENABLES
ENABLE3 for the Z axis.
ENABLE5 for the B axis.
ENABLE(axis)
The CNC sets this mark to (=1) to indicate to the PLC that it is going to move the
corresponding axis or spindle in closed loop, so the PLC enables the axis or spindle if
necessary. This mark stays active until the axis or spindle gets in position, even if the
theoretical movement has not finished; i.e. until the CNC activates the INPOS(axis) mark.
This mark is also enabled in the movements of the independent axis, in spindle movements
in closed loop (for example M19 or G74) or when a spindle goes into closed loop using the
instruction #SERVO ON.
When the movement of an axis implies the movement of a slave axis, the ENABLE(axis)
mark of the slave axis will also be enabled. For example, on gantry axes, slaved with #LINK,
synchronized with #FOLLOW, electronic cams or spindles synchronized in closed loop with
#SYNC even if the slave axis is in another channel.
DIR(axis)
The CNC sets this mark to (=1) to indicate that the axis is moving in the negative direction
and to (=0) when moving in the positive direction. When the axis is stopped, it keeps the last
value.
If the PLC stops the movement of the axes (mark _FEEDHOL=0) the ENABLE(axis) signal
stays at (=1).
REFPOIN(axis)
This mark is set low (=0) on CNC power-up and is set high (=1) after searching home or after
setting the machine coordinate (G174). The mark stays at (=1) until turning the CNC off.
This mark is set to (=0) when a feedback alarm occurs on the analog axes.
On axes and spindles without absolute feedback, the mark is set to (=0) in the following
cases.
• When a home search fails.
• When parking the axis or spindle.
• On Sercos axes and spindles, if the ring fails.
• On spindles or rotary axes controlled as a spindle, when switching to open loop.
• On analog axes, when a feedback alarm occurs.
I n s ta ll a t io n ma n u a l.