50
ABB i-bus
®
KNX
Project design and programming
4.4
Behaviour in the event
of malfunctions
This chapter describes the behaviour of the DALI gateway of the units that
are connected to the gateway in the event of malfunctions like a failure of
the bus or operating voltage.
The following table is a simplified description of the behaviour. A detailed
description can be found in the next chapters.
Failure of the 230 V AC/DC operating voltage
at the gateway
at the electronic ballast
Effect
– Failure of DALI voltage:
Operation or reply of DALI
units impossible.
– KNX programming still pos-
sible.
– Electronic ballast without
mains power supply:
Luminary goes out
Meaning for the gateway
Operating voltage failure.
No DALI voltage is generated.
Electronic ballast error
Parameterisation
Yes, see general parameterisa-
tion window. “Behaviour in the
event of a DALI or KNX failure”
The behaviour of the other units
of the channel can be parame-
terised on the general parame-
terisation page.
Message on KNX:
Objects
“Malfunction 230 VAC”
“Malfunction DALI”
1
“Malfunction
electronic ballast”
0
“Malfunction lamp”
0
“Malfunction 230 VAC”
“Malfunction DALI”
“Malfunction
electronic ballast”
1
“Malfunction lamp”
0
After the elimination
of the problem
Parameterisation possible,
see general parameterisation
window. “Behaviour in the event
of DALI or KNX bus voltage
recovery”
The electronic ballast will auto-
matically be recognised and set
to the current brightness value
of the channel. This may also
mean OFF.
DALI error
Cause
Failure of DALI
voltage
(see above)
Short-circuit of DALI
control line
Interruption of the
DALI control line
Effect
Operation or reply of
DALI units impossible.
No DALI communica-
tion possible.
Corresponds to failure
of DALI voltage.
No DALI communica-
tion possible.
Meaning for the
gateway
No connection with
DALI units.
No connection with
DALI units.
Electronic ballast
error
Parameterisation
Yes, see general
parameterisation win-
dow:
“Behaviour in the
event of a DALI or
KNX failure”
Yes, see general
parameterisation win-
dow: “Behaviour in
the event of a DALI or
KNX failure”
The behaviour of
the other units of
the channel can be
parameterised on the
general parameterisa-
tion page.
Message on KNX:
Objects
“Malfunction
230 VAC”
1
“Malfunction DALI”
“Malfunction
electronic ballast”
“Malfunction lamp”
“Malfunction
230 VAC”
0
“Malfunction DALI”
“Malfunction
electronic ballast”
“Malfunction lamp”
“Malfunction
230 VAC”
0
“Malfunction DALI” 0
“Malfunction
electronic ballast”
“Malfunction lamp” 0
After the
elimination
of the problem
Parameterisation
possible, see gen-
eral parameterisation
window. “Behaviour
in the event of DALI
or KNX bus voltage
recovery”
Parameterisation
possible, see gen-
eral parameterisation
window. “Behaviour
in the event of DALI
or KNX bus voltage
recovery”
The electronic ballast
will automatically be
recognised and set to
the current brightness
value of the channel.