
5. DIGITAL SERVO
B–62835EN/01
214
(3) CMR
1820 Command multiply ratioDGN
1 When CMR is 1/2 to 1/27
2 When CMR is 1 to 48
(4) Turn off power once, then turn it to on.
(5) Feed gear n/m
2084 n of flexible feed gearFRM
2085 m of flexible feed gear
FRM
1) For serial pulse coder A or B, and serial a pulse coder.
For serial pulse coder B, set 250,000 pulses or less to parameter 2084.
Examples of calculation
1/1000 mm 1/10000 mm
1 rotation 8mm
of motor 10mm
12mm
n=1/m=125
n=1/m=100
n=3/m=250
n=2/m=25
n=1/m=10
n=3/m=25
2) For serial pulsecoder C
Examples of calculation
1/1000 mm
1 rotation 8mm
of motor 10mm
12mm
n=1/m=5
n=1/m=4
n=3/m=10
(6) Direction of Travel
2022 Direction of motor rotationPRM
111 : Positive (CCW) –111 : Reverse (CW)
(7) No. of velocity pulses and position pulses
1) For serial pulse coder A or B and serial α pulse coder
Para–
Resolution 1/1000mm Resolution 1/10000mm
no.
Full close Semi close Full close Semi close
High resolu-
tion setting
2000 xxxx xxx 0 xxxx xxx 1
Separate
detector
1815 0010 0010 0010 0000 0010 0010 0010 0000
Velocity feed-
back pulses
2023 8192 819
Position feed-
back pulses
2024 NS 12500 NS/10 1250
Set value=
1
CMR
+100
Set value=2 CMR
No. of feedback pulses per revolution of motor
1000000
=
n
m
No. of feedback pulses per revolution of motor
40000
=
n
m