Analog Fault Input With Limit Value Supervision - Siemens Synco700 RMK770 Documentation Handbook

Fault text
Fault status
signal delay
Effect of fault
Fault status messages
Error handling
Building Technologies
HVAC Products
Following can be set for each fault status message:
Main menu > Commissioning > Settings > Faults > Fault input...
Operating line
Fault text
Fault status signal delay
Fault acknowledgement
Fault priority
Impact of fault
Limit value fault on
Limit value fault off
* Depends on "Input identifier"
These settings can only be made if the relevant input has previously been activated in
the extra configuration.
For more detailed information, refer to section 12.4 "Fault properties".
The text for the universal status inputs is predefined with Aux 1 through Aux 4. The
texts can be adapted.
Signal at the fault
input
Fault status mes-
sage
The fault status signal delay is used to set the period of time a fault
must be pending to be handled as such.
Parameter setting "Stop" at the universal fault inputs means that the entire boiler se-
quence will be shut down.
Number Text
9001 Aux 1
9002 Aux 2
9003 Aux 3
9004 Aux 4
The digital status inputs cannot be monitored. We recommend to use wiring ensuring
that the signal drops out when a fault is pending.

12.7.2 Analog fault input with limit value supervision

An analog input can be monitored for limit value crossings.
An input that is already configured can also be monitored. For example, the main flow
temperature sensor can be monitored to ensure that a maximum flow temperature will
not be exceeded.
Boiler Sequence Controller RMK770
12 Function block faults
Range
Free text, max. 20 char-
acters
00.00...59.55 m.s
None / Acknowledge /
Acknowledge and reset
Urgent / Not urgent
No stop / Stop
0 / 1*
0 / 1*
Signal delay
Effect
Effect in accordance with the settings
Effect in accordance with the settings
Effect in accordance with the settings
Effect in accordance with the settings
Factory setting
Aux 1
00.05 m.s
None
Not urgent
Stop
1
0
183/226
CE1P3132en
01.03.2005