Part 3: Review on Replacement of MR-J2S-_B_ with MR-J4-_B_
3 - 7
3. DIFFERENCES BETWEEN MR-J2S-_B_ AND MR-J4-_B_
3.1 Function Comparison Table
Item MR-J2S-_B_
MR-J4-_B_
Compatibility Reference
material/items
Control mode
• Position control mode
• Speed control mode
• Position control mode
• Speed control mode
• Torque control mode
○
MR-J4-_B_ servo amplifier
Instruction Manual
Network
SSCNET compatible
SSCNET III/H compatible
○
MR-J4-_B_ servo amplifier
Instruction Manual
Servo motor
(Encoder resolution)
HC-_FS series (17-bit ABS)
HA-_FS series (17-bit ABS)
HG series (22-bit ABS)
○
MR-J4-_B_ servo amplifier
Instruction Manual
The number of DIO points
(excluding EM1)
DI: 0 points, DO: 2 points
DI: 3 points, DO: 3 points
○
MR-J4-_B_ servo amplifier
Instruction Manual, Section 5.2.4
Encoder pulse output
ABZ-phase (differential)
←
○
MR-J4-_B_ servo amplifier
Instruction Manual, Section 5.2.1
DIO interface
Input: Sink/source
Output: Sink
Input: Sink/source
Output: Sink/source
○
MR-J4-_B_ servo amplifier
Instruction Manual, Section 3.8
Analog input/output
(Output) 10-bit or equivalent ×
2ch
←
○
MR-J4-_B_ servo amplifier
Instruction Manual Appendix
LED display
7-segment 2-digit
7-segment 3-digit
○
MR-J4-_B_ servo amplifier
Instruction Manual, Section 4.3
Interface 24 V DC power supply Installed.
Not
installed.
×
Part 7 Section 1.2.5
Network terminal connector
MR-A-TM is needed.
No terminal connector is
needed.
×
―
3.2 Function List
function MR-J2S-_B_
MR-J4-_B_
Reference material/items
Absolute position detection system
○
[Pr. 1]
○
[Pr. PA03]
MR-J4-_B_ Servo Amplifier
Instruction Manual, Chapter 12
Gain switching function
○
[Pr. 49]
○
[Pr. PB26]
MR-J4-_B_ Servo Amplifier
Instruction Manual, Section 7.2
Advanced vibration suppression
control II
×
○
[Pr. PB02]
MR-J4-_B_ Servo Amplifier
Instruction Manual, Section 7.1.5
Adaptive filter
○
(Adaptive vibration suppression control)
[Pr. 25]
○
(Adaptive filter II)
[Pr. PB01]
MR-J4-_B_ Servo Amplifier
Instruction Manual, Section 7.1.2
Low-pass filter
○
[Pr. 25]
○
[Pr. PB23]
MR-J4-_B_ Servo Amplifier
Instruction Manual, Section 7.1.4
Machine analyzer function
○
(Note 1)
○
(Note 2)
―
Gain search function
○
(Note 1)
○
(One-touch tuning) MR-J4-_B_ Servo Amplifier
Instruction Manual, Section 6.2
Robust filter
×
○
[Pr. PE41]
―
Slight vibration suppression control
○
[Pr. 24]
○
[Pr. PB24]
―
Auto tuning
○
[Pr. 8]
○
[Pr. PA08]
MR-J4-_B_ Servo Amplifier
Instruction Manual, Section 6.3
Regenerative option
○
[Pr. 2]
○
[Pr. PA02]
MR-J4-_B_ Servo Amplifier
Instruction Manual, Section 11.2
Torque limit
○
[Pr. 10], [Pr. 11]
○
―
Forced stop (EM1) automatic ON
○
[Pr. 23]
○
[Pr. PA04]
―
Alarm history clear
○
○
[Pr. PC21]
―
Output signal selection (device
settings)
×
○
[Pr. PD07] to
[Pr. PD09]
―
Output signal (DO) forced output
○
(Note 1)
○
(Note 2)
MR-J4-_B_ Servo Amplifier
Instruction Manual, Section 4.5.1
(1)
Test operation
mode
Motor-less operation
○
[Pr. 24]
○
[Pr. PC05]
MR-J4-_B_ Servo Amplifier
Instruction Manual, Section 4.5
Other than the above
○
(Note 1)
○
(Note 2)
Analog monitor output
○
[Pr. 22]
○
[Pr. PC09],
[Pr. PC10]
MR-J4-_B_ Servo Amplifier
Instruction Manual Appendix
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