Siemens MXG461B Series Technical Instructions page 9

MXG461B Series Modulating Control Valve
with Magnetic Actuator
Connection
Terminals,
Continued
Controllers with phase-cut
0 to 20 Vdc
Siemens Building Technologies, Inc.
Transformer
F
Controller
G0 G0
G G
Y
M
U
U
Z
MXG461B...
Connecting cable
to heater
Supply cable
Figure 16. Stem Heating Element Z366.
System neutral (SN)
AC/DC 24 V Operating voltage
System potential (SP)
0 to 10Vdc / 2 to 10Vdc
Control signal
0 to 20 mA / 4 to 20 mA
Measuring neutral (= G0)
0 to 10Vdc / 2 to 10Vdc
Positioning feedback signal
0 to 20 mA / 4 to 20 mA
Override input
0 to 20Vdc Phase-cut signal
Figure 15.
G0 G Y M
2 4
Technical Instructions
Document Number 125-4461
May 3, 2006
Page 9