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15. SERVO AMPLIFIERS WITH A LARGE CAPACITY
(
30k TO 55kW
)
(2) Brake unit parameter setting
Normally, changing parameters of the FR-BU2-(H) is not necessary. Whether a parameter can be changed
or not is listed below.
Parameter
Change
possible/
impossible
Remarks
No. Name
0 Brake mode switchover Impossible Do not change the parameter.
1 Monitor display data selection Possible Refer to FR-BU2-(H) Brake Unit
Instruction Manual.
2 Input terminal function selection 1 Impossible Do not change the parameter.
3 Input terminal function selection 2
77 Parameter write selection
78 Cumulative energization time
carrying-over times
CLr Parameter clear
ECL Alarm history clear
C1 For manufacturer setting
(3) Connection example
POINT
Connecting PR terminal of the brake unit to L terminal of the converter unit
results in a brake unit malfunction. Make sure to connect the PR terminal of the
brake unit to the PR terminal of the resistor unit.
(a) Combination with FR-BR-(H) resistor unit
POINT
To use brake units with a parallel connection, use two sets of FR-BU2-(H) brake
unit. Combination with other brake unit results in alarm occurrence or
malfunction.
Make sure to connect the master and slave terminals (MSG and SD) of the two
brake units.
Do not connect as shown below.
N/
P/
Brake unit
Brake unit
Converter unit
L
L
N/
P/
Connecting two cables to
P and N terminals
N/
P/
Brake unit
Brake unit
Converter unit
L
L
N/
P/
Passing wiring