Type BR11-A
Brake resistor BR11-A possesses connected connecting wires. These must be wound twice around
the toroidal core provided. It is important to wind both wires with the same direction of winding (see
fi
gure).
Toroidal core BR11-A
5.8
Motor connection (X 3)
Designation of the con-
nection terminal:
X3
Line cross-section:
The line cross-section must be speci
fi
ed dependent on the motor
´
s current and
the ambient conditions (e.g. temperature, wiring method) in accordance with
DIN VDE 0298-4.
Type of cable:
•
Shielded line
•
Rigid or
fl
exible lines
•
Rated voltage U0 / U: 450 / 750 VAC
Cable lengths:
•
Max. 25 m
Connection type:
Spring-type terminals
Connection:
X3
V
W
M
3~
V
W
U
P1
P2
U
Connection asynchronous motor / synchronous motor
Danger!
Always switch off the mains voltage when connecting the motor line. The contactorless operation
mode ("safe torque off" function (STO)) does
not
galvanically isolate the output stage of the frequency
inverter from the motor line connection terminal!
Danger!
When operating the motor with a rotary encoder, the line to the motor must be connected on the motor
and inverter side phase-correct: U -> U / V -> V / W -> W.
Never swap the connection; not even if the rotary direction of the motor is false!! If the motor phases
are swapped, motor control is generally not possible. This can lead to jerky movements or uncontrolled
acceleration of the motor.
Original operating instructions
ZAdynpro
–
Part 1
Electrical installation
R-TBA17_01-GB 1837 Index 004
Part.-No. 00163459-GB
19/64
5
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