Fault Button; External Fault Button; Fault Properties; Acknowledgement And Reset - Siemens Synco 700 Basic Documentation

Fault relay
Note
Acknowledgement of
faults
Resetting the fault relay
Configuration
Simple fault
Building Technologies
HVAC Products
13.3

Fault button

Fault status messages delivered to the controller are indicated by the LED in the fault
button. If a fault status message needs to be acknowledged, the acknowledgement
must also be made via the fault button.
There are 3 choices:
Indication
Button dark
Button flashes
Button lit
A fault relay, if present, remains energized as long as the button flashes. For more
detailed information, refer to section 13.10 "Fault relay".
The LED extinguishes only when the fault is no longer present. If the LED of the fault
button is lit and does not extinguish when making acknowledgements, a fault status
message is still pending.
The acknowledgement is to be made as follows:
• Acknowledge the fault relay (only, if a fault relay has been configured)
• Acknowledge all fault status messages pending at the controller
• Fault status messages with self-holding can only be reset when the fault is no longer
present
Faults can only be acknowledged on the controller where the fault is pending.
Fault relays can only be reset on the controller with the configured fault relays.
13.4

External fault button

The fault block has a connection facility for an external fault button. The external fault
button has the same function as fault button
ated in parallel.
Main menu > Commissioning > Extra configuration > Faults > Inputs >
Operating line
Fault button external
13.5

Fault properties

Faults are distinguished by properties. There are faults with regard to:

• Acknowledgement and reset

• Signal priority
• Plant behavior
13.5.1 Acknowledgement and reset
No acknowledgement is required for simple faults.
Modular Heating Controller RMH760B
13 Function block faults
Cause / procedure
No fault present
• There is a fault which has not yet been acknowl-
edged. After pressing the button, the button re-
mains lit until the fault is rectified
• There was a temporary fault which, at the moment,
can no longer be detected, demanding an acknowl-
edgement which has not yet been made. After
pressing the button, flashing stops
There is a fault which has already been acknowledged
on the unit. The 2 buttons can be oper-
Adjustable values / display / remarks
--- / RMH760.X4 etc. (digital only)
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CE1P3133en
05.02.2007