[Appendix 1] Summary of MR-J4_B_-RJ020 + MR-J4-T20
Appendix 1-19
Note
The initializing time (the time taken from power-on to reception of servo-on) after
power-on of the MR-J2S-_B_ servo amplifier and MR-J4-_B_-RJ020 servo
amplifier becomes as follows.
• MR-J2S-_B_: (up to 3 s)
• MR-J4-_B_-RJ020: (up to 4 s)
Therefore, note the following when replacing the MR-J2S-_B_ servo amplifier with
the MR-J4-_B_-RJ020 servo amplifier.
• When using the electromagnetic brake to prevent a drop in a vertical lift
application or the like with an external timer to adjust the brake release time, the
lift may drop due to a longer servo-lock time. Adjust the brake release time as
necessary or use MBR (electromagnetic brake interlock).
• The time taken from power-on to operation of the servo motor may become
longer.
The signal arrays of the connectors for CN3 differ between the MR-J4-_B_-RJ020
and the MR-J2S-_B_. Refer to the table below.
CN3 connector
Pin number
Abbreviation
Note when replacing
from the MR-J2S-_B_
MR-J2S-_B_ MR-J4-_B_-RJ020
2 RXD
For manufacturer
setting. Do not connect
anything to these.
Connect the RXD to
the CN30 connector
(13 pin) of the MR-J4-
T20.
3 SG
DOCOM
An external 24 V DC
power supply is
required for the
interface. Change the
wiring as necessary.
5 COM
DICOM
10 VDD
DICOM
12 TXD
For manufacturer
setting. Do not connect
anything to these.
Connect the TXD to the
CN30 connector (14
pin) of the MR-J4-T20.
The electronic dynamic brake operates in the initial state for the HG series servo
motors with a 600 W or smaller capacity. The time constant "
τ
" for the electronic
dynamic brake will be shorter than that for normal dynamic brake. Therefore,
coasting distance will be shorter than in normal dynamic brake. To set the
electronic dynamic brake, refer to [Pr. 39] and [Pr. 56].
POINT
When the power is turned on, voltage, analog monitor output voltage and output
signal may become unstable.
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 ...