Installation manual
CNC 8060
CNC 8065
LOGIC CNC INPUTS AND OUTPUTS.
6.
(REF: 1402)
·329·
Spindle modifiable signals.
Example similar to the one used for GEAR1 through GEAR4
The spindle oscillation during a gear change is controlled by the PLC. Gear 4 is requested
while gear 1 is active.
The example for the GEAR1 through GEAR4 signals describes how to detect and carry out
the gear change. This example shows how to control the spindle oscillation during a gear
change.
The PLC sets SANALOG to the value corresponding to the residual velocity command and
activates the PLCCNTL mark to indicate that the spindle is controlled by the PLC.
When done, the PLCCNTL mark must be set low (=0) and the SANALOG signal must be
set to "0".
SPDLEREV
There is a mark for each spindle. The mnemonics for each spindle are the following:
SPDLEREV1 (can also be programmed as SPDLEREV)
SPDLEREV2 SPDLEREV3 SPDLEREV4
When the PLC sets this mark high (=1), the CNC reverses the spindle turning direction. To
do this, it decelerates and accelerates applying the ramps set by machine parameters.
The PLC always applies this mark to the spindles in open loop(M3/M4); On spindles in closed
loop (M19), it depends on parameter M19SPDLEREV. If an M2 or M4 function is executed
while the SPDLEREV mark is high (=1), the spindle will turn in the opposite direction to the
one assigned to the function.
If the PLC activates or cancels the SPDLEREV mark when the spindle is controlled by the
PLCA (PLCCNNTL mark active), the CNC does not generate ramps to invert the SANALOG
command.
PLCM3
PLCM4
PLCM5
The PLC offers a mark for each spindle. The mnemonics for each spindle are the following:
Here is an example of the mnemonics for PLCM3; it is the same for the rest of the spindles.
PLCM3SP1 (can also be programmed as PLCM3)
PLCM3SP2 PLCM3SP3 PLCM3SP4
The PLC turns this mark on to let the CNC know that it must execute the corresponding M
function at the indicated spindle. The spindle must belong to a channel, M functions cannot
MFUN
MSTROBE
AUXEND
GEAR1
GEAR4
MINAENDW
SANALOG
PLCCNTL
CHANGE
GEAR
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