
B-65270EN/05 2. SETTING αiS/αiF/βiS SERIES SERVO PARAMETERS
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(7) Motor rotation direction setting
Set the direction in which the motor is to turn when a positive value is
specified as a move command. For linear motors, set the parameter
according to the description in Section 4.14, "LINEAR MOTOR
PARAMETER SETTING".
111 Clockwise as viewed from the Pulsecoder
−111 Counterclockwise as viewed from the Pulsecoder
Clockwise as viewed from
the Pulsecoder
Set 111.
Counterclockwise as
viewed from the
Pulsecoder
Set -111.
FANUC
(8) Specify the number of velocity pulses and the number of position pulses.
Set the number of velocity pulses and the number of position pulses
according to the connected detector. For linear motors, set these
parameters according to the description in Section 4.14, "LINEAR
MOTOR PARAMETER SETTING".
(a) Number of velocity pulses
Set the number of velocity pulses to 8192.
αiS/αiF/βiS motor
8192
(b) Number of position pulses
(b)-1 Number of position pulses for semi-closed feedback loop
Set the number of position pulses to 12500.
Number of position pulses
(αiS/αiF/βiS motor, semi-closed feedback loop)
12500
(b)-2 Number of position pulses for full-closed feedback loop
(See Subsections 2.1.4 and 2.1.5)
Set the number of position pulses to the number of pulses fed back
from the separate detector when the motor makes one turn. (The
flexible feed gear has nothing to do with the calculation of the number
of position pulses).
Number of position pulses (full-closed
feedback loop)
Number of pulses fed back from the
separate detector when the motor
makes one turn
When using a serial rotary scale with a resolution of 1,000,000 pulses
per revolution, set a value assuming that 12500 is equivalent to
1,000,000 pulses.
Number of position pulses (full-closed
feedback loop)
* 1,000,000 pulses / rev
12,500 ×
(motor-table gear reduction ratio)