Baldor 23H Series Installation & Operating Manual page 30

Control
Assembly
Control Terminals
R2 B+/R1
See recommended
Terminal Tightening
Torques in Section 7.
Note: Sense lines S+ and S– must be shielded, twisted pair wire.
Terminate shields at control end only.
Table 3-6 Terminal Torques & Wire Size for RUA Assemblies
Braking Braking
Control
Option
Rating
Watts
VAC VAC
Max.
230 746
230 1492
230 1865
230 2238
230 3730
230 5600
460 746
460 1492
460 1865
460 2238
460 3730
460 5600
MN723
The RUA Dynamic Brake assembly is designed for controls that have built in dynamic
brake hardware. Be sure to disconnect the internal resistor wires from control terminals.
These factory installed wires must be removed and the wire ends insulated with electrical
tape to prevent contact with other components.
be disabled in software. For Baldor controls, reduce the resistor ohms to the lowest value
and increase the resistor watts to greatest value. Be sure to select the proper size kit
based on the dissipation rating of the resistor(s) to handle the average watts of the
overhauling or cyclic load.
Figure 3-22 Wiring for RUA Assembly
Use Baldor cables:
LD5157A05 – 5 Ft.
LD5157A10 – 10 Ft.
LD5157A20 – 20 Ft.
LD5157A30 – 30 Ft.
LD5157A50 – 50 Ft.
B– GND
B+ and B– Terminals
Shielded Tightening
AC
Wire Size Torque
Volt
2
AWG mm Lb–in
16 1.31 300 9
16 1.31 300 9
16 1.31 300 9
14 2.08 300 9
14 2.08 300 9
14 2.08 300 9
16 1.31 600 9
16 1.31 600 9
16 1.31 600 9
16 1.31 600 9
14 2.08 600 9
14 2.08 600 9
The braking capability may also need to
Chassis must be
grounded to Earth.
NC Thermal
NC Thermal
B+
S+
No Connection
S–
B–
See recommended Terminal Tightening
Torques and wire sizes in Table 3-6.
S+ and S– Terminals
Shielded
AC
Wire Size
Volt
2
Nm AWG mm
1 20 0.51 300
1 20 0.51 300
1 20 0.51 300
1 20 0.51 300
1 20 0.51 300
1 20 0.51 300
1 20 0.51 600
1 20 0.51 600
1 20 0.51 600
1 20 0.51 600
1 20 0.51 600
1 20 0.51 600
200°C Thermal Switch
Normally Closed contact
(mounted on chassis).
Dynamic
Brake
Assembly
Tightening
Torque
Lb–in Nm
9 1
9 1
9 1
9 1
9 1
9 1
9 1
9 1
9 1
9 1
9 1
9 1
Receiving & Installation 3-19