Mitsubishi Electric MELSERVO-J4 Series Transition Handbook page 346

Part 6: Review on Replacement of MR-J3-_T_(DIO command/ Serial communication operation) with MR-J4-_A_-RJ
MR-J3-_T_
No. Name and function
PC26 Function selection C-5
Select the [AL. 99 Stroke limit warning].
0 0 0 x:
[AL. 99 Stroke limit warning] selection
0: Enabled
1: Disabled
When this parameter is set to "1", A99 will not occur if
the forward rotation stroke end (LSP) or reverse rotation
stroke end (LSN) turns OFF.
PC27 Function selection C-6
Set this function if undervoltage alarm occurs because of
distorted power supply voltage waveform when using
power regenerative converter or power regenerative
common converter.
0 0 0 x:
Setting when undervoltage alarm occurs
0: Initial value
1: Set "1" if undervoltage alarm occurs because of
distorted power supply voltage waveform when using
power regenerative converter or power regenerative
common converter.
PC28 Function selection
Select the display method of the current position and
command position.
0 0 _ x:
Electronic gear fraction clear selection
0: Disabled
1: Enabled
By setting it to "1" the fraction of the last command by
the electronic gear is cleared when starting automatic
operation.
0 0 x _:
Current position/command position selection
Display Operation
Set value
method mode
0 Positioning Automatic The actual current
display
Manual
1 Roll feed Automatic The actual current
display
Manual
Status display description
Current position Command position
The command
position where the current position
machine home where the machine
position is assumed home position is
as 0 is displayed. assumed as 0 is
displayed.
The count starts
position where the from 0 when the
Automatic operation start signal is turned
start position is ON, and the
assumed as 0 is command current
displayed. position to the target
position is
displayed. During a
stop, the command
position of the
selected point table
is displayed.
The command
position of the
selected point table
is displayed.
Initial
No.
value
0000h PC26 Function selection C-5
_ _ _ x:
[AL. 99 Stroke limit warning] selection
Enable or disable [AL. 99 Stroke limit warning].
0: Enabled
1: Disabled
_ _ x _:
For manufacturer setting
_ x _ _:
For manufacturer setting
x _ _ _:
For manufacturer setting
0000h PC27 Function selection C-6
_ _ _ x:
[AL. 10 Undervoltage] detection method selection
Set this parameter when [AL. 10 Undervoltage] occurs
due to distorted power supply voltage waveform while
using FR-RC-(H) or FR-CV-(H).
0: [AL. 10] not occurrence
1: [AL. 10] occurrence
_ _ x _:
This digit is not available with MR-J4-_A_-RJ 100 W or
more servo amplifiers.
_ x _ _:
Undervoltage alarm selection
Select the alarm and warning that occurs when the bus
voltage drops to the undervoltage alarm level.
0: [AL. 10] regardless of servo motor speed
1: [AL. E9] at servo motor speed 50 r/min (50 mm/s) or
less, [AL. 10] at over 50 r/min (50 mm/s)
x _ _ _:
For manufacturer setting
0000h PT26 Function selection T-2
_ _ _ x:
Electronic gear fraction clear selection
0: Disabled
1: Enabled
Selecting "Enabled" will clear a fraction of the previous
command by the electronic gear at start of the automatic
operation.
Setting "2" or more to this digit will be "Disabled".
_ _ x _:
Current position/command position display selection
Select how to display a current position and command
position.
Setting Displayed
value data
_ _ 0 _ Positioning
display
_ _ 1 _ Roll
display
_ x _ _:
For manufacturer setting
x _ _ _:
For manufacturer setting
6 - 67
MR-J4-_A_-RJ
Name and function
Status display
Operation
mode
Current position
Auto/Manual Actual current position
will be displayed as
machine home position
is 0.
feed Auto Actual current position
will be displayed as
automatic operation
start position is 0.
Manual
Initial
value
0h
0h
0h
0h
0h
0h
0h
0h
0h
0h
Command position
Command current
position will be
displayed as machine
home position is 0.
When ST1 (Forward
rotation start) or ST2
(Reverse rotation start)
is turned on, counting
starts from 0 and a
command current
position to the target
position will be
displayed.
When a stop, a point
table command
position for the point
table method will be
displayed.
0 will be continuously
displayed.
0h
0h