11. OPTIONS AND AUXILIARY EQUIPMENT
11 - 25
(b) When connecting two brake units to a servo amplifier
POINT
For 400 V class servo amplifiers, two brake units cannot be connected with one
servo amplifier.
To use brake units with a parallel connection, use two sets of FR-BU2 brake
unit. Combination with other brake unit results in alarm occurrence or
malfunction.
Always connect the terminals for master/slave (MSG to MSG, SD to SD)
between the two brake units.
Do not connect the converter unit and brake units as below. Connect the cables
with a terminal block to distribute as indicated in this section.
N/-
P/+
Brake unit
Brake unit
Servo amplifie
P+
N-
N/-
P/+
Connecting two cables to P+ and N-
terminals
N/-
P/+
Brake unit
Brake unit
Servo amplifie
P+
N- N/-
P/+
Passing wiring
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