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Outline quantities of C bus participants
26
Building Technologies
008725_h_en_--
Fire Safety & Security Products
06.2011
Limitation due to 5V power consumption
All I bus components are supplied with 24 V
and
5 V. The power available for the 5 V supply is limited
after the CPU:
'Main CPU'
Power available
E3X10x 1,100mA
B3Q... / E3C011
250mA
'5 V power consumption of I bus components' table
I bus component
Power consumption
after ’CPU’
I bus component
Power consumption
after ’CPU’
E3M060
34mA
E3G060
10mA
E3M071
34mA
E3G070
10mA
E3M080
55mA
E3G080
35mA
E3M111
25mA
E3C011
12mA
E3M171
45mA
B3Q321
8mA
E3M120
65mA
E3I020*
100mA
E3L020
10mA
E3I040
70mA
E3L030
35mA
K3I090*
1mA
E3G050
8mA
E3M141
5mA
E3H021**
–
* Is not an I bus component but is also supplied by the 'CPU'
** Is supplied via 24 V.
no
yes
select station with
higher capacity,
use an additional
power supply or an
additional station
consumption of
I-Bus-modules
< X ?
the capacity of the main
CPU is checked
The limit values for the operating unit (CT/CI), gateway (CK) and additional
AlgoWorks programs must also be checked!