User Manual

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Siem ens Actuators without spring return GEB…1 CM2Z4621en
Building Technologies 2017-05-26
6.3 Actuator wiring (modulating)
With AC supply, the G0 line has a AC 0.23 A supply current and a DC 0.1 mA
positioning signal current (from Y = DC 0...10 V). The AC voltage drop on the G0 line
does not impact the positioning signal Y.
Operating voltage
Power
consumption
Perm. voltage drop for line
1 (G)2 (G0)
AC 24 V 5.5 VA 4 % of AC 24 V
The diagram shows the currents in the connecting lines for one actuator.
M
0 V
AC 0,23 A
G0
AC 24 V
AC 0,23 A
DC 0...10 V
G
Y
U
GEB16...
4621G07
1
2
9
8
(DC 0...10 V)
Determining the line lengths for four actuators GEB16..1 and AC 24 V supply. Only the
AC currents in line 1 (G) and 2 (G0) determine the line sizing.
Max. permissible voltage drop = 4% per line.
∂ Consumption = 4 x 5.5 VA = 22 VA.
∂ Line current = 4 x 0.23 A = 0.92 A.
∂ Permissible single line length for G, G0:
90 m at 1.5 mm
2
line cross section, or
149 m at 2.5 mm
2
line cross section.
Modulating actuators
GEB16..1
Power consumption and
perm. voltage drop with
one actuator
P&I diagram:
Conduction currents
Example:
Parallel connection of four
actuators