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!
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