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Building Technologies Boiler sequence controller RMK770 CE1P3132en
HVAC Products 6 Boiler sequence management 23.04.2009
6.4 Supervision of faults
The main pump (main twin pump) can be monitored with an overload input each and/or
a flow switch each (… Extra configuration > Boiler sequence manager > Inputs).
The parameters for the pump or twin pump fault inputs are fixed and cannot be
changed.
The fault status signal delay for the flow switch is 60 seconds.
The setting parameters for the main twin pump can be found on menu … Settings > Boiler
sequence manager > Twin pump. For more detailed information about the functionality of
the twin pump, refer to chapter 5 “General functions, fundamentals”.
Number Text Effect
2491 [Main pump] overload Nonurgent message; acknowledgement can
be parameterized; factory setting: “Acknowl-
edge“
2492 [Main pump B] overload Nonurgent message; acknowledgement can
be parameterized; factory setting: “Acknowl-
edge“
2493 [Main pump] no flow Nonurgent message; must be acknowledged
and reset
2494
[Main pump B] no flow
Nonurgent message; must be acknowledged
and reset
2495 [Main pump] fault Urgent message; , must not be acknowl-
edged, plant stop
For fault supervision of the boiler sequence, there are 3 binary fault inputs available.
These are freely configurable, whereby the 3 fault outputs use the following factory
settings:
Main menu > Commissioning > Settings > … or
Main menu > Settings > Boiler sequence manager > Fault settings > Fault input 1
Operating line Range Factory setting
Fault text A…Z Water shortage
Impact of fault Stop / No stop Stop
Fault acknowledgement None / Acknowledge /
Acknowledge and reset
Acknowledge
Fault priority Urgent / Nonurgent Urgent
Fault status signal delay 00.00…59.55 m.s
(minutes.seconds)
00.05 m.s
Main menu > Commissioning > Settings > … or
Main menu > Settings > Boiler sequence manager > Fault settings > Fault input 2
Operating line Range Factory setting
Fault text A…Z Overpressure
Impact of fault Stop / No stop Stop
Fault acknowledgement None / Acknowledge /
Acknowledge and reset
Acknowledge
Fault priority Urgent / Nonurgent Urgent
Fault status signal delay 00.00…59.55 m.s 00.05 m.s
Supervision of
main pump
Fault status messages
Fault supervision of
boiler sequence
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