Control Techniques Unidrive 1404

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38 Unidrive User Guide
www.controltechniques.com Issue Number: 9
Figure 4-2 Unidrive Size 3 to 4 power connections
A thermal overload protection device should be connected as shown in
Figure 4-7 on page 44 and must interrupt the AC supply on tripping. This
applies to all sizes of Unidrive where a braking resistor is used.
L1 L2
L2L1 L3 U V W
Optional RFI
filter
Optional
line reactor
Fuses
L3
Mains
Supply
Motor
Optional ground
connection
Supply
G
r
ou
n
d
+
_
Thermal
overload
protection
device
Braking
resistor