Emerson Unidrive M702 - Page 52

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52 Unidrive M702 User Guide
Issue Number: 3
Figure 4-2 Size 4 power connections
If the heatsink mounted resistor is used, an overload protection device is
not required. The resistor is designed to fail safely under fault conditions.
See Figure 4-6 for further information on ground connections.
Figure 4-3 Size 5 power connections
The upper terminal block (1) is used for AC supply connection.
The lower terminal block (2) is used for Motor connection.
If the heatsink mounted resistor is used, an overload protection device is
not required. The resistor is designed to fail safely under fault conditions.
See Figure 4-7 for further information on ground connections.
L1 L2
L2L1 L3 U V W
Optional EMC
filter
Optional
line reactor
Fuses
L3
Mains
Supply
Motor
Optional ground
connection
Supply
Ground
PE
AC Connections
Optional
braking
resistor
Thermal
overload
protection
device
BR
+DC
-DC
4
DC / Brake connections
Optional
braking
resistor
Thermal
overload
protection
device
BR
+DC
-DC
DC / Brake connections
BR
Optional
braking
resistor
Thermal
overload
protection
device
DC - DC +
L1 L2
L2L1 L3 U V W
Optional EMC
filter
Optional
line reactor
Fuses
L3
Mains
Supply
Motor
Optional ground
connection
Supply
Ground
PE
AC Connections Motor Connections
1
2