Section 1
General Information
Receiving & Installation 3-21
MN715
Figure 3-23 Wiring for RUA Assembly
GND
See recommended Terminal Tightening Torques in Section 6.
Dynamic
Brake
Assembly
S+
No Connection
S–
B–
B+
Chassis must be
grounded to Earth.
200
°
C Thermal Switch
Normally Closed contact
(mounted on chassis).
Note: Sense lines S+ and S– must be shielded, twisted pair wire.
Terminate shields at control end only.
Control
Assembly
B–
B+/R1
R2
Control Terminals
Earth
Use Baldor cables:
LD5157A05 – 5 Ft.
LD5157A10 – 10 Ft.
LD5157A20 – 20 Ft.
LD5157A30 – 30 Ft.
LD5157A50 – 50 Ft.
NC Thermal
NC Thermal
Note: Baldor controls with an “E” or “W” suffix have an internal dynamic braking
transistor and resistor installed. If you are installing a larger DB resistor , be
sure to disconnect the internal resistor wires from terminals B+/R1and R2.
These factory installed wires must be removed and the ends insulated with
electrical tape to prevent contact with other components. Failure to
disconnect the internal resistor may result in equipment damage.
Table 3-8 Terminal Torques & Wire Size for RUA Assemblies
Braking
B+ and B– Terminals
S+ and S– Terminals
Control
Rating
VAC
Option
Watts
Shielded
Wire Size
AC
Tightening
Torque
Shielded
Wire Size
AC
Tightening
Torque
VAC
Max.
AWG
mm
2
Volt
Lb–in
Nm
AWG
mm
2
Volt
Lb–in
Nm
230
746
16
1.31
300
9
1
20
0.51
300
9
1
230
1492
16
1.31
300
9
1
20
0.51
300
9
1
230
1865
16
1.31
300
9
1
20
0.51
300
9
1
230
2238
14
2.08
300
9
1
20
0.51
300
9
1
230
3730
14
2.08
300
9
1
20
0.51
300
9
1
230
5600
14
2.08
300
9
1
20
0.51
300
9
1
460
746
16
1.31
600
9
1
20
0.51
600
9
1
460
1492
16
1.31
600
9
1
20
0.51
600
9
1
460
1865
16
1.31
600
9
1
20
0.51
600
9
1
460
2238
16
1.31
600
9
1
20
0.51
600
9
1
460
3730
14
2.08
600
9
1
20
0.51
600
9
1
460
5600
14
2.08
600
9
1
20
0.51
600
9
1
575
746
16
1.31
600
9
1
20
0.51
600
9
1
575
1492
16
1.31
600
9
1
20
0.51
600
9
1
575
1865
16
1.31
600
9
1
20
0.51
600
9
1
575
2238
16
1.31
600
9
1
20
0.51
600
9
1
575
3730
16
1.31
600
9
1
20
0.51
600
9
1
575
5600
16
1.31
600
9
1
20
0.51
600
9
1