25/44
Siemens
Rotary actuators without spring return GBB/GIB..1
CE1Z4626en
Smart Infrastructure
Wiring notes
2019-11-28
It is recommended to switch off the power during two-position control when the actuator
has reached the open or close position, in order to enhance life span and reduce power
consumption.
6.3 Actuator wiring (modulating)
With AC supply, the G0 line has a AC 0.33 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
8 VA
4 % of AC 24 V
The diagram shows the currents in the connecting lines for
one actuator
.
M
0 V
AC 0.33 A
G0
AC 24 V
AC 0.33 A
DC 0...10 V
G
Y
U
GBB/GIB16...
46
26
G
05
1
2
9
8
DC 0...10 V
Determining the line lengths for four actuators GBB/GIB16..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 8 VA = 32 VA
·
Line current = 4 x 0.33 A = 1.32 A
·
Permissible single line length for G, G0:
61 m at 1.5 mm
2
cross-sectional area, or
102 m at 2.5 mm
2
cross-sectional area
Note:
2-position control
Modulating actuators
GBB/GIB16..1
Power consumption and
perm. voltage drop with
one actuator
P&I diagram:
Currents
Example:
Parallel connection
of four actuators
