Part 5: Review on Replacement of MR-J2S-30 kW or Higher Capacity Models with MR-J4-DU_
5 - 39
5.4 FR-BU2-(H) Brake Unit
POINT
In torque control mode, EM2 signals of a drive unit are the same as its EM1
signals.
Use a 200 V class brake unit and resistor unit for a 200 V class converter unit as
well as a 400 V class brake unit and resistor unit for a 400 V class converter
unit. Do not use different voltage class units together.
Do not install a brake unit or resistor unit horizontally or obliquely, otherwise
their heat dissipation effect will deteriorate. Make sure to install them vertically.
The temperature of resistor unit case rises up to 100 °C or more. Make sure that
any wires or flammables do not come in contact with the case.
Use a brake unit in ambient temperature of -10 to 50 °C. Note that the ambient
temperature for brake units is different from that for converter units (0 to 55 °C).
Configure the circuit in such a way that when a malfunction occurs, the power
supply is shut off by using an alarm output from a brake unit or resistor unit.
Use a brake unit in combination with other units as described in Section 5.4.1.
A brake unit and a regenerative option (regenerative resistors) cannot be used
together.
When using a brake unit, set parameters as described in the table below.
Parameter Setting
value
[Pr. PA01] of converter units
_ _ 0 0 (initial value)
[Pr. PA02] of drive units
_ _ 0 1
Connect a brake unit to the buses of a converter unit (between L+ and L- of TE2-1). Brake units regenerate
larger power than MR-RB regenerative options. Brake units are used when there is insufficient regenerative
ability in regenerative options.
When using a brake unit, make sure to refer to the "FR-BU2 Instruction Manual".
5.4.1 Selection
Use a converter unit, a brake unit, and a resistor unit in the combination described in the table below.
Brake unit
Resistor unit
Number of
connected
units
Permissible
continuous
power
[kW]
Resultant
resistance
[
Ω
]
Converter unit
200 V class FR-BU2-55K
FR-BR-55K
2 (in parallel)
7.82
1
MR-CR55K
MT-BR5-55K
2 (in parallel)
11.0
1
400 V class
FR-BU2-H55K FR-BR-H55K
2 (in parallel)
7.82
4
MR-CR55K4
FR-BU2-H75K MT-BR5-H75K
2 (in parallel)
15.0
3.25
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 ...