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Frame B
(VS1MXS51 shown
as an example)
4.4.4 Optional Dynamic Brake Hardware Frame B Controls
If optional DB resistor is to be used, connect it to the + and BR terminals, (see Figure 4-2). Dynamic
Brake (DB) Hardware must be installed on a flat, non-flammable, vertical surface for effective cooling
and operation. The DB Resistors get extremely hot during normal operation and must be mounted
away from flammable surfaces and unsafe atmosphere.
Table 4-1 Fuse & Wire size / Terminal Torque Specifications
Nominal
Input
Hp
kW
Current
amps
1
0.75
2.2
2
1.5
4.1
3
2.2
5.4
5
4
7.6
7.5
5.5
11.7
Control Terminal Torque Settings of 4.5 lb-in (0.5 Nm)
Power Terminal Torque Settings of 9 lb-in (1 Nm)
For UL compliance Motor Cable to be Copper 75°C and Fuse current rating defined by ratings marked
( )*.
Wire size is based on 40°C surrounding and fuses are based on 45°C surrounding, max continuous
output and no harmonic current.
4.4.5 Motor Connections
All cables must be shielded and the shields must be grounded at the enclosure cable entrance.
1. Remove covers. Cover removal is described in Chapter 3 of this manual.
2. Connect the Motor leads to terminals U, V and W (See Figure 4-2 for location).
3. Connect the motor ground wire to the ground terminal (See Figure 4-2).
MN762S
Figure 4-2 Wiring Locations
Fuse
Supply
or
Cable Size
MCB
amps AWG mm2
500-600V +/-10% 3-Phase Input
3
15
1
6
15
1
6
15
1
10
15
1.5
16
14
2.5
Frame B
L1/L L2/N L3
See Recommended Tightening
Torques in Table 4-1.
Nominal
Motor Cable
Output
Size
Current
Amps
AWG mm2 Feet
1.7
15
1
3.1
15
1
4.1
15
1
6.1
15
1.5
9
14
2.5
U
V
W
+
Min
Max Motor
Brake
Cable Length
Resistor
Value
Meters
Ohms
164
50
47
328
100
47
328
100
47
328
100
47
328
100
47
Power Wiring 4-3
BR
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