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System Of Units And Parameter Setting - Mitsubishi Electric FX-1PG User Manual

Pulse generator unit.
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FX-1PG/FX
-1PG PULSE GENERATOR UNIT
2N
5
5.2

System of Units and Parameter Setting

[ BFM #0 ] Pulse rate
A: 1 to 32, 767 P/R
This is the number of input pulses required by the
amplifier to rotate the motor by 1 revolution. It is not the
number of encoder pulses per revolution of the motor.
(The pulse rate becomes a different value in accordance
with the electronic gear ratio.)
The BFM#0 is not required to be set when the motor
system of units described later is selected.
[ BFMs #2 and #1 ] Feed rate
B1 (distance specification) = 1 to 999,999 µm/R
B2 (angle specification)
= 1 to 999,999 mdeg/R
B3 (distance specification) = 1 to 999,999 x10
This is the machine travel B while the motor rotates by
1 revolution. Set either one among B1, B2 and B3 in
accordance with the unit among µm/R, mdeg/R and
10-4inch/R suitable to the application.
The BFMs #2 and #1 are not required to be set when
the motor system of units described later is selected.
[ BFM #3 ] Parameters (b0 to b15)
Set bits 0 to 15 as follows.
System of units (b1, b0)
b1 b0 System of units
0
0
Motor system
0
1
Machine system
1
0
*1
Combined
system
1
1
*1
*1 Offers the same operation.
The table below shows the units for position and speed
in accordance with the setting of the BFMs #2 and #1
(feedrate).
-4
inch/R
Selection
of feedrate
B1
Position
B2
data*2
B3
B1
Speed
B2
data*3
B3
*2 Position data: HP, P(I), P(II), CP
*3 Speed data:
BFM LIST
Remarks
Units based on pulses
Units based on lengths and
angles
Units based on lengths and
angles for position units based
on pulses/s for speed
Motor
Combined
Machine
system
system
system
µm
PLS
PLS
mdeg
-4
PLS
10
inch
PLS/s
cm/min
PLS/s
10deg/min
PLS/s
inch/min
V
, V
, V
, V
, V(I), V(II)
max
bia
JOG
RT
5-3

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