·500·
Installation manual
CNC 8055
CNC 8055i
12.
LOGIC CNC INPUTS AND OUTPUTS
SOFT: V02.2X
Axis logic inputs.
AXIS+1 (M5108) AXIS-1 (M5109) AXIS+2 (M5158) AXIS-2 (M5159)
AXIS+3 (M5208) AXIS-3 (M5209) AXIS+4 (M5258) AXIS-4 (M5259)
AXIS+5 (M5308) AXIS-5 (M5309) AXIS+6 (M5358) AXIS-6 (M5359)
AXIS+7 (M5408) AXIS-7 (M5409)
The CNC uses these signals when working in the manual (JOG) operating mode.
If the PLC sets one of these signals high, the CNC will move the corresponding axis in the direction
indicated, positive (+) or negative (-). This movement will be performed at the feedrate override %
currently selected.
The treatment which these signals receive is similar to that given to the JOG keys of the operator
panel.
SPENA1 (M5110) DRENA1 (M5111) SPENA2 (M5160) DRENA2 (M5161)
SPENA3 (M5210) DRENA3 (M5211) SPENA4 (M5260) DRENA4 (M5261)
SPENA5 (M5310) DRENA5 (M5311) SPENA6 (M5360) DRENA6 (M5361)
SPENA7 (M5410) DRENA7 (M5411) SPENA8 (M6110) DRENA8 (M6111)
SPENA9 (M6160) DRENA9 (M6161)
The CNC uses these signals when communicating with the drive via Sercos or via CAN. Every time
the PLC sets one of these signals high or low, the CNC lets the corresponding drive know about it.
These signals correspond to the "speed enable" and "drive enable" signals of the drive. The drive
manual describes how the two signals work, however, remember the following:
• Both signals must be initialized low when powering up the PLC.
• For normal drive operation, both signals must be set high.
• A down flank (trailing edge) of the DRENA signal (drive enable) turns off the power circuit of the
drive and the motor loses its torque. In this situation, the motor is no longer governed and it will
stop when its kinetic energy runs out. (Stop by friction).
• A trailing edge of the SPENA signal (speed enable) switches the "internal velocity reference"
to "0" rpm and brakes the motor while maintaining its torque. Once the motor has stopped, the
drive's power circuit is turned off and the motor has no torque.
When using Sercos, when an emergency occurs at the CNC, the SPENA signals of the axes and
the spindle are disabled and the drive brakes using the emergency ramps.
SYNCHRO1 (M5112) SYNCHRO2 (M5162) SYNCHRO3 (M5212) SYNCHRO4 (M5262)
SYNCHRO5 (M5312) SYNCHRO6 (M5362) SYNCHRO7 (M5412)
The PLC sets one of these signals high to synchronize the corresponding axis to the axis defined
by the axis parameter "SYNCHRO".
ELIMINA1 (M5113) ELIMINA2 (M5163) ELIMINA3 (M5213) ELIMINA4 (M5263)
ELIMINA5 (M5313) ELIMINA6 (M5363) ELIMINA7 (M5413)
If the PLC sets one these signals high, the CNC does not display the corresponding axis but keeps
controlling it. Same as when setting axis parameter DFORMAT (P1) =3.
The ELIMINA mark can be activated and deactivated at any time and it also cancels the feedback
alarms which the machine parameter does not do.
When the axis is controlled via Sercos and the PLC sets the relevant ELIMINA signal high, the
commands to park that axis are generated automatically via Sercos. The drive of that axis will not
issue, for example, when removing the feedback, the CNC will not issue a feedback error.
SMOTOF1 (M5114) SMOTOF2 (M5154) SMOTOF3 (M5214) SMOTOF4 (M5254)
SMOTOF5 (M5314) SMOTOF6 (M5354) SMOTOF7 (M5414)
The SMOTIME (P58) filter set for each axis with parameter P58 can be canceled from the PLC.
This SMOTIME filter will be activated or deactivated at the beginning of the block. If one of these
logic inputs is activated or deactivated while the CNC is overlapping blocks being executed in round
corner, it will be ignored until that operation is finished.
LIM1OFF (M5115) LIM2OFF (M5165) LIM3OFF (M5215) LIM4OFF (M5265)
LIM5OFF (M5315) LIM6OFF (M5365) LIM7OFF (M5415)
The PLC sets one of these signals high so that the CNC ignores the software limits of the
corresponding axis.
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