Mitsubishi Electric MELSERVO-J3 Series Manual page 74

Part 2: Review on Replacement of MR-J3-_A_ with MR-J4-_A_
MR-J3-_A_
No.
Name and function
Zero speed
PC17
Used to set the output range of the zero speed
detection (ZSP).
Zero speed detection (ZSP) has hysteresis width of
20r/min
Alarm history clear
PC18
Used to clear the alarm history.
0 0 0 x:
Alarm history clear
0: Invalid
1: Valid
When alarm history clear is made valid, the alarm
history is cleared at next power-on.
After the alarm history is cleared, the setting is
automatically made invalid (reset to 0).
Encoder output pulses selection
PC19
Use to select the, encoder output pulses direction
and encoder output pulses setting.
0 0 0 x:
Encoder output pulses phase changing
Changes the phases of A/B-phase encoder output
pulses.
Servo motor rotation direction
Set value
CCW
A-phase
0
B-phase
A-phase
1
B-phase
0 0 x 0:
Encoder output pulses setting selection
(refer to [Pr. PA15])
0: Output pulses setting
1: Division ratio setting
2: Ratio is automatically set to command pulse unit
Setting "2" makes the [Pr. PA15] (encoder output
pulses) setting invalid.
Initial
value
50
0000h
0000h
CW
A-phase
B-phase
A-phase
B-phase
2 - 45
MR-J4-_A_
No.
Name and function
PC17
Same as MR-J3
Zero speed
Set the output range of ZSP (Zero speed detection).
ZSP (Zero speed detection) has hysteresis of 20
r/min or 20 mm/s.
Setting range: 0 to 10000
PC18
Same as MR-J3
Alarm history clear
Alarm history clear selection
_ _ _ x:
Clear the alarm history.
0: Disabled
1: Enabled
When "Enabled" is set, the alarm history will be
cleared at the next power-on. After the alarm history
is cleared, the setting is automatically disabled.
_ _ x _:
For manufacturer setting
_ x _ _:
For manufacturer setting
x _ _ _:
For manufacturer setting
PC19
Same setting as MR-J3
Encoder output pulse selection
Encoder output pulse phase selection
_ _ _ x:
Select the encoder pulse direction.
0: A-phase 90° shift in CCW
1: A-phase 90° shift in CW
Servo motor rotation direction
Set value
CCW or positive direction
A-phase
0
B-phase
A-phase
1
B-phase
Encoder output pulse setting selection
_ _ x _:
0: Output pulse setting
When "_ 1 0 _" is set to this parameter, [AL. 37
Parameter error] will occur.
1: Dividing ratio setting
2: The same output pulse setting as the command
pulse
3: A-phase/B-phase pulse electronic gear setting
When you select "1", the setting of [Pr. PA16
Encoder output pulses 2] will be disabled. When you
select "2", the settings of [Pr. PA15 Encoder output
pulses] and [Pr. PA16 Encoder output pulses 2] will
be disabled. When you select the setting, do not
change the settings in [Pr. PA06] and [Pr. PA07]
after the power-on.
Selection of the encoders for encoder output pulse
_ x _ _:
Select an encoder for servo amplifier output.
0: Servo motor encoder
1: Load-side encoder
When "_ 1 0 _" is set to this parameter, [AL. 37
Parameter error] will occur.
This is only for the fully closed loop system.
x _ _ _:
For manufacturer setting
Initial
value
50
0h
0h
0h
0h
0h
CW or negative direction
A-phase
B-phase
A-phase
B-phase
0h
0h
0h
Control
mode
P
S
T
P
S
T
P
S
T
P
S
T
P