Mitsubishi Electric MELSERVO-J2M series, Instruction Manual

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5. PARAMETERS
Classifi-
cation
No. Symbol Name and Function
Initial
Value
Unit
Setting
Range
33 *OP6 Option function 6
Used to select the serial communication baudrate, serial
communication response delay time setting and encoder output
pulse setting.
0
Encoder output pulse setting selection
(refer to parameter No.38)
0: Output pulse setting
1: Division ratio setting
0 0
0000 Refer to
name
and
function
column.
34 VPI PI-PID control switch-over position droop
Used to set the position droop value (number of pulses) at which PI
control is switched over to PID control.
Set "0001" in DRU parameter No. 32 to make this function valid. 0 pulse 0
to
50000
35 For manufacturer setting
Do not change this value by any means. 0
36 VDC Speed differential compensation
Used to set the differential compensation. 980 0
to
1000
37 For manufacturer setting 0010
Encoder output pulses
POINT
The MR-J2M-D01 extension IO unit is required to output the
encoder pulses (A phase, B phase, Z phase).
Exp
ans
io
n DR
U
par
ame
te
rs
38 *ENR
Used to set the encoder pulses (A-phase, B-phase) output by the
enhancing IO unit.
Set the value 4 times greater than the A-phase and B-phase pulses.
You can use DRU parameter No.33 to choose the output pulse
setting or output division ratio setting.
The number of A-phase and B-phase pulses actually output is 1/4
times greater than the preset number of pulses.
The maximum output frequency is 1.3Mpps (after multiplication by
4). Use this parameter within this range.
For output pulse designation
Set "0 " (initial value) in DRU parameter No.33.
Set the number of pulses per servo motor revolution.
Output pulse set value [pulses/rev]
At the setting of 5600, for example, the actually output A-phase
and B-phase pulses are as indicated below:
4
5600
A-phase and B-phase output pulses 1400[pulse]
For output division ratio setting
Set "1 " in DRU parameter No.33.
The number of pulses per servo motor revolution is divided by the
set value.
Output pulse
[pulses/rev]
Resolution per servo motor revolution
Set value
At the setting of 8, for example, the actually output A-phase and
B-phase pulses are as indicated below:
A-phase and B-phase output pulses 4096[pulse]
8
131072
4
1
4000 pulse/rev 1
to
65535