Basic Documentation

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Siemens Universal controllers RMU710B, RMU720B, RMU730B CE1P3150en
Building Technologies Faults 03.10.2011
Main menu > Commissioning > Settings > .... or
Main menu > Settings > Faults > Filter supervision >
Operating line Range Factory setting
Fault status message
delay
00.00...59.59 m:s 10.00 m:s
Limit value fault on Depending on the selected
type
Depending on the type
Limit value fault off Depending on the selected
type
Depending on the type
This input is used to supervise a filter monitor and handling its messages. When,
due to filter contamination, the pressure drop across the filter is too high, a fault
message can be generated.
No. Text Effect
3911 Filter dirty Non-urgent message; must be acknowledged
and reset
If several filters are to be supervised (e.g. the extract and supply air filter), the two
filter monitors can be connected in series.
Signal priority is always "Non-urgent", a filter fault message must always be
acknowledged and reset. If a filter is clogged, the plant is not stopped.
24.4.2 Fire alarm off (basic types A and P)
You can switch the ventilation plant to operating mode "Fire alarm off" via a digital
signal on the "Fire alarm off" input.
The function is activated by configuring a digital input Xx in fault block (basic type
A) or at time switch 1 (basic type P):
Main menu > Commissioning > Extra configuration > Faults (basic type A)
Main menu > Commissioning > Extra configuration > Time switch 1 (basic type P)
Operating line Adjustable values / remarks
Fire alarm off ---, N.X1, N.X2, ... (digital inputs only)
The supply air fan and extract air fan are emergency shut down for an active signal
at input "Fire alarm off". This input can be controlled by e.g. external fire alarm
equipment.
Furthermore, a geographic zone can be entered for basic type P on the RMU7..B
controller. Time switch 1 or the fire alarm off signal also acts in this zone. This is
the same functionality as in the RMB795 central control unit (see basic
documentation CE1P3121en, section 8.8).
The fault priority is always "Urgent", a fire alarm must always be acknowledged and
reset.
No. Text Effect
3900 Fire alarm off Urgent message with plant stop; must be
acknowledged and reset
24.4.3 Smoke extraction (basic types A and P)
The ventilation plant can be switched to operating mode "Smoke extraction" via a
digital signal or two digital signals on the inputs "Smoke extraction supply air" and
"Smoke extraction extract air".
Setting values
Fault status messages
Configuration
Fault status messages