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Installation manual
CNC 8055
CNC 8055i
12.
LOGIC CNC INPUTS AND OUTPUTS
SOFT: V02.2X
Spindle logic outputs.
12.9 Spindle logic outputs.
This CNC can handle 2 spindles: a main spindle and a second spindle. They both can be operative
simultaneously, but only one can be controlled at a time. This selection can be made via part-
program by means of functions G28 and G29.
ENABLES (M5950) Main spindle
ENABLES2 (M5975) Second spindle
This signal is used when working with the spindle in closed loop (M19). The CNC only considers
the signals for the currently selected spindle.
The CNC sets this signal high to tell the PLC to allow the spindle to move.
DIRS (M5951) Main spindle
DIRS2 (M5976) Second spindle
This signal is used when working with the spindle in closed loop (M19). The CNC only considers
the signals for the currently selected spindle.
The CNC uses this signal to tell the PLC in which direction the spindle is moving.
If the signal is at a high logic level, this indicates that the spindle moves in a negative direction.
If the signal is low, this indicates that the spindle moves in a positive direction.
REFPOINS (M5952) Main spindle
REFPOIS2 (M5977) Second spindle
This signal is used when working with the spindle in closed loop (M19). The CNC only considers
the signals for the currently selected spindle.
The CNC sets this signal high to tell the PLC that the spindle reference point search has already
been made.
This is set low when the CNC is powered up, after executing the [SHIFT] [RESET] sequence or a
feedback alarm occurs due to loss of count, and every time a change is made from closed loop (M19)
to open loop.
DRSTAFS (M5953) DRSTASS (M5954) Main spindle
DRSTAFS2 (M5978) DRSTASS2 (M579) Second spindle
The CNC uses these signals when communicating with the drive via Sercos or via CAN and indicate
the status of the drive.
When an internal error occurs at the drive, the DRSTAF* and DRSTAS* signals are set low (logic
level low).
CAXIS (M5955) Main spindle
CAXIS2 (M5980) Second spindle
This signal is used when working with the spindle as "C" axis (G15). The CNC only considers the
signals for the currently selected spindle.
The CNC sets this signal high to tell the PLC that the C axis is active.
REVOK (M5956) Main spindle
REVOK2 (M5981) Second spindle
The CNC only considers the signals for the currently selected spindle.
DRSTAF* DRSTAS*
Actuating the main switch of the electrical cabinet supplies 24 Vdc to the
drive.
The drive runs an internal test.
If correct, it activates the output "System OK".
00
From that moment on, the power supply must be turned on.
When there is power at the drive bus, it is ready to output torque.
01
To do that, activate the "drive enable" and "speed enable" inputs. 1 0
Once the "drive enable" and "speed enable" are activated, the drive is
running properly.
11
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