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®
ABB i-bus
KNX
Device technology
2.2.4
Operating and display elements
Operation/
Indicator light
LED green
LED red
7 LEDs (yellow)
LED No.:
7.
6.
5.
4.
3.
2.
1.
Please note
Individual LEDs may flash during downloads or while the application is being unloaded.
Description
Indicates status of mains and output
voltage
The LED is off during programming.
Indicates overload/short-circuit current.
The LED lights up when the output
current exceeds the overload limit
(I > I
). For SV/S 30.640.5.1, overload
Ovl
and short-circuit current values apply to
the total current, I = I
+ I
1
2
Indicates present bus current
If a current value exceeds/falls below
the indicator value by +/- 5 % for at
least 110 ms, the LED comes ON/goes
OFF.
Example, SV/S 30.640.5.1:
LED No. 2 (200 mA) lights up if the
output current exceeds/stays at
210 mA for 110 ms. The LED goes off
if the current falls below 190 mA for at
least 110 ms.
Triggers and indicates a bus reset.
This function can be triggered only
when mains voltage is applied.
Operating one line with two power
supplies:
when the mains supply fails, the Reset
button on the affected device does not
function.
Indicates a KNX telegram
Indicates a communication error on the
bus
Function
ON:
Mains voltage present, device operating normally
(I < I
)
Ovl
OFF:
Mains voltage absent
SV/S 30.320.2.1
ON (I > I
)
I > 500 mA
Ovl
SV/S 30.320.2.1
LED
Indicator value
No.:
[mA]
7.
350
6.
300
5.
250
4.
200
3.
150
2.
100
1.
50
Reset button: Pressing the button for > 2 seconds triggers a
reset. The line shorts. Pressing the button again
during a reset has no effect (no reaction, no
retrigger, no interrupt, etc.)
ON:
After pressing for > 2 secs. or for the duration of
the reset (20 s) after receiving the object value.
ON:
After 20 s reset
Flashes:
At 4.8 Hz while being pressed
AN:
Receiving telegram
OFF:
Stand-by mode
ON:
The LED comes ON for 1 second and is
retriggerable if there is a transmission error or if a
telegram fails or is incomplete (e.g. "BUSY",
"NAK" (receipt not correct)).
OFF:
Device working normally
SV/S xx.xxx.x.1 | 2CDC501049D0201 Rev. A 17
SV/S 30.640.5.1
I > 900 mA
SV/S 30.640.5.1
Indicator value
[mA]
700
600
550
400
300
200
100
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