Parameter Setting Of Brake Units; Connection Example - Mitsubishi Electric MELSERVO-J2S Series Transition Handbook

Part 5: Review on Replacement of MR-J2S-30 kW or Higher Capacity Models with MR-J4-DU_

5.4.2 Parameter setting of brake units

Normally, it is unnecessary to change the FR-BU2-(H) parameters. The table below shows permission for
changing each parameter.

5.4.3 Connection example

(1) Use of the FR-BR-(H) resistor unit
Parameter
Number Name
0 Brake mode switching
1 Monitor display data selection
2 Input terminal function selection 1
3 Input terminal function selection 2
77 Parameter write selection
Cumulative energization time
78
carrying-over times
CLr Parameter clear
ECL Alarm history clear
C1 For manufacturer setting
POINT
Connecting the PR terminal of a brake unit to the L+ terminal of a converter unit
will cause a malfunction to the brake unit. Make sure to connect the PR terminal
of a brake unit to that of a resistor unit.
POINT
When connecting two brake units in parallel, use FR-BU2-(H) for both.
Otherwise an alarm or malfunction may occur.
Make sure to connect the master and slave terminals (MSG, SD) of one brake
unit to the master and the slave of the other respectively.
Do not connect as shown below.
Converter unit
L+
L-
Connecting multiple brake
units together to L+ and L-.
Permission
NO Do not change the setting.
Available Refer to the "FR-BU2 installation guide".
NO Do not change the setting.
Brake unit
P/+
N/-
Brake unit
P/+
N/-
5 - 40
Remarks
Converter unit Brake unit
L+
L-
Connecting multiple brake
units by daisy chain.
P/+
N/-
Brake unit
P/+
N/-