Conversion Rules (Mr-J3-_A_ => Mr-J4-_A_) - Mitsubishi Electric MELSERVO-J4 Series Transition Handbook

Part 7: Common Reference Material
2.2.5 Conversion rules (MR-J3-_A_ => MR-J4-_A_)
The following table shows the servo parameter conversion rules from MR-J3-_A_ to MR-J4- _A_.
Servo parameters not specified in the following table will be set to the initial values.
No. Name
PA01 Control mode
PA02 Regenerative option
PA03 Absolute position detection system
POINT
Because the servo parameters of MR-J3-_A _ and those of MR-J4-_A_ are not
completely interchangeable, the conversion rules may not be applied. Check the
operations and review the settings as necessary.
The value of the parameter writing after parameter conversion is the initial value.
MR-J4-_A_: [Pr. PA19] = "00AAh"
Various offset parameters cannot be converted. Change the settings as
necessary.
MR-J4-_A_: [Pr. PC37] to [Pr. PC40]
The following parameters of MR-J4-_A_ are compatible with the servo
amplifier's software version A3 or later. The software version can be checked in
the system configuration of MR Configurator 2.
MR-J4-_A_: [Pr. PA03 Absolute position detection system "_ _ _2h" (Absolute
position detection system by communication)]
MR-J4-_A_: [Pr. PC21 RS-422 communication function selection]
When the geared servo motor is replaced, the reduction ratio may differ before
and after the replacement. Check the specifications of the servo motor and
review the electronic gear settings as necessary.
MR-J4-_A_: [Pr. PA05] to [Pr. PA07]
The following parameters will be converted to values according to the encoder
resolution of the servo motor.
MR-J4-_A_: [Pr. PA10]/[Pr. PA15]/[Pr. PA21]
When "HG series" is selected for servo motor series, the parameters will be
converted to values according to the encoder resolution of the HG motor.
When "HF-_P/HC-_P/HA-_P series" is selected for servo motor series, the
parameters will be converted to values according to the encoder resolution of
the HF-_P/HC-_P/HA-_P servo motor.
Servo motor series can be selected in MR Configurator2 with software version
1.72A or later.
MR-J3-_A_
Type
Hex
Hex
Hex
MR-J4-_A_
Target No. Type
_ _ _ X PA01 Hex
_ X _ _ PA01 Hex
_ _ XX PA02 Hex
_ _ _ X PA03 Hex
7 - 58
Conversion rule
Target
_ _ _ X The setting value will be maintained.
When "HG series" is selected for
servo motor series, the setting value
will not be maintained.
When "HF-_P/HC-_P/HA-_P series"
is selected for servo motor series,
the setting value will be converted as
follows:
_ X _ _
_ 0_ _ will be changed to _ 2_ _.
_ 4_ _ will be changed to _ 2_ _.
Otherwise, _ 0_ _ will be set.
Servo motor series can be selected
in MR Configurator2 with software
version 1.72A or later.
_ _ XX The setting value will be maintained.
01_ _ will be changed to _ _ 01.
_ _ _ X 02_ _ will be changed to _ _ 02.
Otherwise, _ _ 00 will be set.