·520·
Installation manual
CNC 8055
CNC 8055i
12.
LOGIC CNC INPUTS AND OUTPUTS
SOFT: V02.2X
Logic outputs of the axes
12.8 Logic outputs of the axes
There are several groups of logic inputs (ENABLE, DIR, etc.) which refer to the possible axes of
the machine by means of digits 1 through 7 (ENABLE2, DIR1,etc.) or using the axis name
(ENABLEX, DIRZ, etc.).
The marks of the axes that do not exist in the machine parameters assume the value of the M2045
mark, that's always set to 0.
When monitoring the PLC program, it shows the edited marks, either with a letter or with a number.
However, the resource windows created from monitoring will replace the marks with axis names by
the marks with axis numbers. For example:
ENABLEX with ENABLE1
ENABLEZ by ENABLE2 if there is no Y axis, but there are X and Z axes.
Mnemonics using numbers 1 through 7.
These signals are numbered as the logic order of the axes; it is not related to the values assigned
to general parameter AXIS1 (P0) through AXIS8 (P7).
For example, if the CNC controls the X, Y, Z, B, C and U axis, the order will be: X, Y, Z, U, B, C and,
therefore:
Mnemonics using the axis name
The mnemonics of the signals refer to the axis name.
Mnemonics with axis names offer the advantage that if an axis is eliminated, the PLC program will
still be consistent with the rest of the axes.
ENABLE1 (M5600) ENABLE2 (M5650) ENABLE3 (M5700) ENABLE4 (M5750)
ENABLE5 (M5800) ENABLE6 (M5850) ENABLE7 (M5900)
The CNC sets these signals at a high logic level to tell the PLC to allow the corresponding axis to
move.
DIR1 (M5601) DIR2 (M5651) DIR3 (M5701) DIR4 (M5751)
DIR5 (M5801) DIR6 (M5851) DIR7 (M5901)
The CNC uses these signals to tell the PLC in which direction the axes move.
If the signal is high this indicates that the corresponding axis moves in a negative direction.
If the signal is low this indicates that the corresponding axis moves in a positive direction.
ENABLE1, DIR1, REFPOIN1, INPOS1 for the X axis:
ENABLE2, DIR2, REFPOIN2, INPOS2 for the Y axis:
ENABLE3, DIR3, REFPOIN3, INPOS3 for the Z axis:
ENABLE4, DIR4, REFPOIN4, INPOS4 for the U axis:
ENABLE5, DIR5, REFPOIN5, INPOS5 for the B axis
ENABLE6, DIR6, REFPOIN6, INPOS6 for the C axis:
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