ABB i-bus
KNX
Planning and application
SA/S | 2CDC 505 056 D0208 169
Reaction on:
Bus voltage recovery
Download
ETS bus reset
Threshold
(communication object Change
Threshold value 1)
Threshold value evaluation is carried out
after bus voltage recovery using the
parameterized threshold value, whereby the
last status threshold detected in operation is
used for comparison. Should no status
threshold exist before bus voltage failure, the
factory-set status (hysteresis limit
undershoot) is assumed.
The thresholds currently saved in the SA/S
are overwritten with the values parameterized
in ETS if the overwrite with download
parameter is set to
yes
. If set to
no
, the
values stored via KNX are retained.
Overwrite Threshold 1 can be
parameterized (parameter
window
X: General
).
The Threshold 1 stored
in the SA/S will be
restored.
Safety priorities
Inactive, communication object values are set
to
inactive
Communication object values are
retained. Monitoring time is
restarted.
As for download
Forced operation
Can be parameterized
(Parameter window
A: Safety
)
Communication object values are
retained. Monitoring time is
restarted
As for download
Current detection
Current value is recalculated.
Status Current-Threshold is calculated using
this.
Current value is recalculated.
Status Current-Threshold is
calculated using this.
As for download
Operating mode Heating
Actuator
Valve mode
Position can be parameterized
(Parameter window
X: General
)
Calculation (PWM) is continued.
As for download
Function
unchanged
Accepted
if changed
Unchanged
Monitoring
(Communication object
RTR fault)
Monitoring time is restarted. Communication
object value is 0.
Monitoring time is restarted.
Communication object value is
unchanged.
As for download
Reaction on forced operation
Off
unchanged
As for download
Valve Purge
Monitoring time restarts.
Monitoring time restarts.
As for download
Summary of Contents for i-bus SA/S 2.6.2.1
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