
2. SETTING αiS/αiF/βiS SERIES SERVO PARAMETERS B-65270EN/05
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[Parameter setting]
AMR=01011000 (88 in decimal representation)
Flexible feed gear (N/M) = 360,000/500,000 = 18/25, so parameter No.
2084 = 18, and parameter No. 2085 = 25
Number of velocity pulses = 4096
Number of position pulses = 6235
Reference counter capacity = 60,000
(4) Setting parameters (Used as a separate detector)
After performing the initialization procedure (full-closed loop)
described in Subsection 2.1.3, change the settings described below
according to the signal pitch of the detector.
[Setting flexible feed gear]
1977 (FS15i)
Flexible feed gear (numerator) (N)
2084 (FS30i,16i)
1978 (FS15i)
Flexible feed gear (denominator) (M)
2085 (FS30i,16i)
Set a value listed in the following table according to the detector used.
Detector Flexible feed gear (N/M)
Amount of movement per motor revolution [deg]/
detection unit [deg]
CZi512S
500,000
Amount of movement per motor revolution [deg]/
detection unit [deg]
CZi1024S
1,000,000
[Setting number of position pulses]
1891 (FS15i)
Number of position pulses (PPLS)
2024 (FS30i,16i)
Set a value listed in the following table according to the detector used.
Detector Number of position pulses
CZi512S
6250 × (gear reduction ratio from the motor to table)
CZi1024S
12500 × (gear reduction ratio from the motor to table)
If the calculation result is greater than 32767, use the following
position pulse conversion coefficient (PSMPYL) to obtain the
parameter value (PPLS).
2628 (FS15i)
Conversion coefficient for the number of position feedback pulses (PSMPYL)
2185 (FS30i,16i)
This parameter is used when the calculated number of position pulses
is greater than 32767.
(Equation for parameter calculation)
Set this parameter so that the following equation is satisfied:
Number of position pulses = PPLS × PSMPYL
(→ See Supplementary 3 in Subsection 2.1.8.)