Jumper block X3:
CMA and CMB grounding
CMB connected to GND
CMA connected to GND
CMB isolated from GND
CMA isolated from GND
CMB and CMA internally
connected together,isolated
from GND
= Factory default
e
3
0
b
h
0
1
3
.1
0
Illustration 21: Jumper Selections
22
23
12
9
Autom. Mains
25
26
230 VAC
S1
K1
K1.1
K1.1
K2
K2
K1
VACON OPT-A2
K1
K2
K2
K2.1
M1/Vacon
M2/mains
M1/mains
24 VDC
S2
K2.1
K1
10
RO1
RO2
DIN2
DIN3
Autom.
O
O
Mains
M2/Vacon
e
3
0
b
h
0
2
0
.1
0
Illustration 22: Pump Autochange System, Principal Control Diagram
AB296635287482en-000301 / DPD00903
130 | Danfoss A/S © 2023.02
Pump and Fan Control Application
VACON® NX All-in-One
Application Guide
Summary of Contents for VACON NX
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