
B-63783EN-1/01 9.SPINDLE FUNCTION
- 797 -
- Gear change processing
In response to a specified spindle speed, gear selection and change
processing is normally performed by the PMC. According to the gear
selected by the PMC, gear change is performed by the gear change
function via contact signal input/output.
- Command output to a spindle
According to the speed command output and its polarity determined
through the above processing flow, the following is output to issue a
command to the spindle control unit:
- When a serial spindle is used -> Digital data from 0 to ±16383
- When an analog spindle is used -> Analog voltage from 0 to ±10 V
- Spindle control signals
When using a serial spindle, do not transfer control signals for the
spindle motor speed amplifier (such as the clutch/gear and orientation
signals) from the PMC to the speed amplifier directly; transfer these
signals via the CNC.
- Spindle status signals
When using a serial spindle, do not transfer status signals from the
spindle motor speed amplifier (such as the speed arrival and alarm
signals) to the PMC directly; transfer these signals via the CNC.
- Gain and offset
The analog spindle may require gain and offset voltage adjustment
depending on the spindle motor speed amplifier being used.
The following parameters are available for such adjustment.
-Offset voltage compensation : Parameter (No.5613)
-Gain adjustment data :Parameter (No.5614)