Firmware Manual

Chapter 6—Multi-Pump and Fan Control Application
49 PowerXL DG1 Series Adjustable Frequency Drives MN040004EN—March 2014 www.eaton.com
Figure 31. Example of Three-Pump Autochange, Main Diagram
Figure 32. Three-Pump Autochange System Principal Control Diagram
FY
F3
230 Vac
DIN3
16
24 Vdc
13
17 DIN2
DG1 CB
DIN4
15
DG1 CB
DG1 CB
DG1
CB
DG1
CB
26
27
S1 S2 S3
29
30
32
33
A
O
Line A
O
Line A
O
Line
K3
K3
K2
K2
K1.1
K1.1K1
K1
M1/DG1
K3
K3
K1
K1
K2.1
K2.1K2
K2
K1
K1
K2
K2
K3.1
K3.1K3
K3
M1/Line M2/DG1 M2/Line M3/DG1 M3/Line