Danfoss VACON NX All-in-One Application Manual page 131

VACON® NX All-in-One
Application Guide
230 VAC
22
23
A
Mains
O
S1
K3
K2 K3
K2
K1.1 K1
K1 K1.1
M1/Vacon M1/mains
Illustration 23: Pump Autochange System, Principal Control Diagram
Danfoss A/S © 2023.02
VACON OPT-A1
24 VDC DIN2
12 9
VACON OPT-B5 25
26
A
Mains
O
S2
K3
K1 K3
K1
K2.1 K2
K2 K2.1
M2/Vacon M2/mains
Pump and Fan Control Application
VACON OPT-A1
DIN3
10
VACON OPT-B5
28
29
Mains
A O
S3
K1
K2 K1
K2
K3.1 K3
K3 K3.1
M3/Vacon M3/mains
AB296635287482en-000301 / DPD00903 | 131
VACON OPT-A1
DIN4
14