
B–63503EN–1/01
9. SPINDLE SPEED FUNCTION
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The PMC-based polarity (rotation direction) control signals SGN and
SSIN <G033#5,#6> will function for any spindle selected by SWS1 to
SWS2.
The concept of Type A multi-spindle control is outlined below.
S command
Hold 1
Hold 2
First spindle
SIND
SWS 1
SWS 2
* SSTP 1
* SSTP 2
Second spindle
Select Type B control by setting parameter MSI No. 3709#2 to “1”.
Each spindle has its own SIND, SSIN and SGN signals.
Each signal functions regardless of selection state of the spindle selection
signals (SWS1 to SWS2).
When either the spindle selection signal or the SIND signal for the first
or second spindle is set to “1”, the polarity control signals SSIN, SGN will
function. The first spindle is controlled by the SGN and SSIN signals; the
second and third spindles are controlled by SGN2 <G035#5>, and SSIN2
<G035#6>, respectively.
The concept of Type B multi-spindle control outlined below.
First spindle
S command
Hold 1
Hold 2
SIND
* SSTP 1
* SSTP 2
SWS 1
SWS 2
SIND2
Second spindle
In multi-spindle control, the first spindle is the first serial spindle, the
second spindle is the second serial spindle.
Multi-spindle control
(TYPE-B)
Spindles to be controlled