Part 1: Summary of MR-J2S/MR-J2M Replacement
1 - 5
Changes from MR-J2S series to MR-J4 series
POINT
The following table summarizes the changes from MR-J2S series to MR-J4
series.
For details, refer to the reference document/items.
Changes
Check items
Impact
Reference document/items
Servo
amplifier
Connector
Connector shape, pin arrangement, signal abbreviation, and
location are different.
Part 2, Section 3.4
Part 3, Section 3.5
Part 6, Section 3.3
Part 7, Section 1.2.2
Terminal block
Terminal block shape, location, and method of drawing out
wires are different.
Part 7, Section 1.2.1
P3, P4 terminals
MR-J4 servo amplifier has P3 and P4 in the upstream of the
inrush current suppression circuit. Note that the locations of
the P1 and P terminals of MR-J2S-11K_ to MR-J2S-22K_ are
different.
Part 7, Section 1.2.1
Z-phase
Pulse width and start-up timing of the encoder Z phase pulse
signal (OP) output from the servo amplifier are different.
Part 7, Section 1.2.9
Parameter
Parameter numbers and contents are different. In addition,
using the parameter converter function of MR Configurator2,
GX Works2, and MT Developer2, it is possible to transfer the
setup contents of the MR-J2S parameters to MR-J4.
Part 2, Section 3.6
Part 3, Section 3.7
Part 4, Section 3.6
Part 5, Chapter 3
Part 6, Section 3.5
Part 7, Section 2.3
Dimensions
The height and width of the MR-J4 is equal to or less than that
of the MR-J2S series. Check regarding room for wiring. (Note
that the depth is larger for 400/600 W.)
Part 7, Chapter 2
Interface 24 V DC
power supply
For MR-J4, an external 24 V DC power supply is required for
the interface.
Part 7, Section 1.2.5
Dynamic brake
coasting distance
The servo motor has a different dynamic brake coasting
distance.
Part 7, Section 1.2.3
Communication
function
MR-J4 has no RS-232C. MR-J4 has the following
communication functions.
MR-J4-_A_: USB, RS-422
MR-J4-_B_: USB
Part 7, Section 1.2.7
Forced stop
deceleration
When MR-J4 is forcibly stopped in a factory setting and when
an alarm occurs, the servo motor decelerates and stops. The
way the servo motor stops is different from when the MR-J2S
emergency stop or forced stop is effective.
Part 7, Section 1.2.4
MR-J4-_A_Servo Amplifier
Instruction Manual
MR-J4-_B_Servo Amplifier
Instruction Manual
Initializing time
The time it takes to reach servo-on from power-on is different.
Part 7, Section 1.2.8
LED display
MR-J2S-_B_ has a 7-segment 2-digit LED display and MR-
J4-_B_ has a 7-segment 3-digit display.
MR-J4-_B_Servo Amplifier
Instruction Manual
Built-in regenerative
resistor
Note that replacing MR-J2S-60_4 and MR-J2S-100_4 with
MR-J4-60_4 and MR-J4-100_4 respectively changes the
regenerative ability.
Part 9, Section 1.1
Options and
peripheral
equipment
Molded-case circuit
breaker fuse
Those for MR-J2S may not be usable. Select those for MR-
J4.
Part 9, Section 4.3
Magnetic contactor
Those for MR-J2S may not be usable. Select those for MR-
J4.
Part 9, Section 4.3
Power factor improving
AC reactor
Those for MR-J2S may not be usable. FR-HAL is
recommended.
Part 9, Section 7.1
Part 9, Section 7.3
Part 9, Section 7.6
Part 9, Section 7.8
Power factor improving
DC reactor
Those for MR-J2S may not be usable. FR-HEL is
recommended.
Part 9, Section 7.2
Part 9, Section 7.4
Part 9, Section 7.5
Part 9, Section 7.7
Содержание MELSERVO-J2-Super Series
Страница 18: ...Part 1 Summary of MR J2S MR J2M Replacement 1 1 Part 1 Summary of MR J2S MR J2M Replacement ...
Страница 31: ...Part 1 Summary of MR J2S MR J2M Replacement 1 14 MEMO ...
Страница 109: ...Part 3 Review on Replacement of MR J2S _B_ with MR J4 _B_ 3 32 MEMO ...
Страница 161: ...Part 4 Review on Replacement of MR J2S _CP_ CL_ with MR J4 _A_ RJ 4 52 MEMO ...
Страница 219: ...Part 5 Review on Replacement of MR J2S 30 kW or Higher Capacity Models with MR J4 DU_ 5 58 MEMO ...
Страница 220: ...Part 6 Review on Replacement of MR J2M with MR J4 6 1 Part 6 Review on Replacement of MR J2M with MR J4 ...
Страница 239: ...Part 6 Review on Replacement of MR J2M with MR J4 6 20 MEMO ...
Страница 240: ...Part 7 Common Reference Material 7 1 Part 7 Common Reference Material ...
Страница 284: ...Part 7 Common Reference Material 7 45 Click Update Project ...
Страница 342: ...Part 8 Review on Replacement of Motor 8 1 Part 8 Review on Replacement of Motor ...
Страница 409: ...Part 8 Review on Replacement of Motor 8 68 MEMO ...
Страница 461: ...Part 9 Review on Replacement of Optional Peripheral Equipment 9 52 MEMO ...
Страница 462: ...Part 10 Startup Procedure Manual 10 1 Part 10 Startup Procedure Manual ...
Страница 464: ... Appendix 1 Summary of MR J4_B_ RJ020 MR J4 T20 Appendix 1 1 Appendix 1 Summary of MR J4_B_ RJ020 MR J4 T20 ...