Communication; Fault Relays - Siemens Synco 700 Series Basic Documentation

Setting values
Configuration
Settings
202/232
Building Technologies
HVAC Products
13.9

Communication

When communication is activated, the impact on fault handling is as follows:
• Fault status messages are always delivered via bus and can be further handled by
other Synco™ 700 devices
• Fault status messages from other Synco™ 700 devices are shown on the controller
• Fault status messages from other Synco™ 700 devices can be delivered to a fault
relay
Fault status messages can be acknowledged from a remote location (e.g. from the
operator station using the OCI700.1 service tool).
It can be selected whether fault status messages with self-holding may also be reset
from a remote location or whether the self-holding reset must always be made locally.
Main menu > Commissioning > Communication > Basic settings
Operating line
Remote reset of fault
A controller cannot acknowledge any fault status messages on other controllers.

13.10 Fault relays

To forward fault status messages, or to indicate them optically or audibly on a control
panel, for instance, 2 fault status outputs "Fault relay 1" and "Fault relay 2" of the
function block can be configured to any 2 free outputs N.Q...
Main menu > Commissioning > Extra configuration > Faults > Outputs
Operating line
Fault relay 1
Fault relay 2
For each of the 2 fault relays, the following settings can be made:
• Fault priority:
Priority at which the relay shall be energized
• Signalling:
The following signalling variants can be selected:
− Internal fault (optically): The fault relay only signals internal faults and remains
energized until faults are no longer pending
− Internal fault (audibly): The fault relay only signals internal faults and remains en-
ergized until the fault is acknowledged
− Fault via bus (audibly): The fault relay only signals from the bus and remains en-
ergized until the fault is acknowledged
• Inversion:
− No means that the relay is energized should a fault occur
− Yes means that the relay is deenergized should a fault occur
Boiler Sequence Controller RMK770
13 Function block "Faults"
Range
No / Yes
Adjustable values / display / remarks
--- / N.Q1 ... (free relays only) /
Assignment of fault relay
--- / N.Q1 ... (free relays only) /
Assignment of fault relay
Factory setting
No
CE1P3132en
23.04.2009