ABB SA/S 12.16.6.1 Product Manual - Knx Commissioning
ABB i-bus
®
KNX Commissioning
100 2CDC 505 056 D0207 | SA/S
change is only registered as a current change if it is greater than the
hysteresis value. Only then will a change of status be sent.
Due to fluctuations in the electrical system and the detection accuracy
of the current transformer in the Switch Actuator, a hysteresis of less
than 3 mA is not possible.
For further information see:
Function threshold with current detection
,
Current detection specifications
, page 37
Note
No hysteresis is used with the option none. With a highly fluctuating
current value, this can often lead to frequently fluctuating threshold
results. The bus load increases unnecessarily with a continuous
status change.
Current threshold 2 +/- hysteresis
Options: no
sending
send "0" at crossing over
send "1" at crossing over
send "1" at crossing lower
send "0" at crossing lower
send "0" at crossing over - "1" at crossing lower
send "1" at crossing over - "0" at crossing lower
This parameter determines the value of the communication object
Status Current-Threshold 1
when undershooting or overshooting the
current threshold.
• no sending: No telegram is sent when there is a current overshoot
or undershoot
• send "0" at crossing over: Should current threshold 1 be overshot,
the value 0 is sent via the communication object Status Current-
Threshold 1
. With an overshoot the value 1 is set but no telegram
is sent.
• send "1" at crossing over: Should current threshold 1 be overshot,
the value 1 is sent via the communication object Status Current-
Threshold 1
. With an overshoot the value 0 is set but no telegram
is sent.
• send "0" at crossing lower: Should current threshold 1 be
undershot, the value 0 is sent via the communication object
Status Current-Threshold 1
. With an undershoot the value 1 is set
but no telegram is sent.