Commander Se Power Circuit Layouts - Control Techniques Commander SE Advanced User's Manual

4.1.1 Power terminal torques
Drive size
1 & 2
3 & 4
4.1.2 Thermal protection for an optional braking resistor
Figure 4-2 and Figure 4-3 show a typical circuit arrangement for braking resistor protection. This thermal
protection must disconnect the AC supply from the drive if the resistor becomes overloaded. (Do not use
overload opening contact in line with braking resistor).
WARNING
4.2

Commander SE power circuit layouts

Figure 4-4 Commander SE size 1 power circuit layout
Figure 4-5 Commander SE size 2, 3 and 4 power circuit layout
* Not on Commander
SE size 2
-DC bus
Commander SE sizes 2, 3 and 4 can be powered directly on to its + and - DC terminals from a DC power supply without any
external softstart circuitry.
Commander SE size 5 requires an external softstart circuit, see Figure 4-7.
108
Maximum power terminal
screw/stud torque
Nm lb in
1 9
2 18
Nm lb ft
5 15 11
+DC bus
*
Motor
Motor
Commander SE Advanced User Guide
Issue Number: 4