Instruction manual

Accessories Optional accessories
7 - 6
● Installation of regenerative brake option
When using the regenerative brake resistor remove the built-in brake resistor and fit the
regenerative brake option across P-C. Set parameter No. 2 according to the option to be used.
The regenerative brake option will cause a temperature rise of 100 degrees relative to the
ambient temperature. Fully examine heat dissipation, installation position, used cables, etc.
before installing the option. For wiring, use flame-resistant cables and keep them clear of the
regenerative brake option body. Always use twisted cables of max. 5m length for connection
with the servo amplifier.
For installation of an external brake resistor to the servo amplifiers MR-J2S-350B or less and
MR-J2S-200B4 or less always remove the wiring from across P-D and fit the regenerative brake
option across P-C.
S000635C
Abb. 7-2: Parameter No. 2 setting
S000636C
Fig. 7-3: Brake unit connection for servo amplifiers MR-J2S-350B or less and
MR-J2S-200B4 or less
Regenerative selection
brake option
00: No brake resistor
01: FR-RC, FR-BU
05: MR-RFH220-40
08: MR-RFH400-13
09: MR-RFH400-13
0B: MR-RFH400-6.7
0C: MR-RFH400-6.7
10: MR-RFH75-40
11: MR-RFH75-40
Servo amplifier 200V
Regenerative selection brake option
00: No brake resistor
01: FR-RC-H
, FR-BU-H
80: MR-RB3H-4
81: MR-RB5H-4/MR-PWR-T-600-80
82: MR-RB3G-4
83: MR-RB5G-4/MR-PWR-T-600-47
84: MR-RB34-4
85: MR-RB54-4/MR-PWR-T-600-26
86: MR-RB1L-4/MR-PWR-T-150-270
87: MR-RB3M-4/MR-PWR-T-400-120
Servo amplifier 400V
D
P
C
P
C
Always remove the lead!
Servo amplifier
MR-J2S-350B and less
MR-J2S-200B4 and less
Regenerative
brake option
5m max.