EN
A
PICTURES
[1] KNX Master Control W8
[2] KNX Master Control W2
B
MOUNTING
Choose the optimal location: flat and large surface.
[1] Installation and distance measures
C
WIRING
[1] Keep the minimum distance
[2] Tool for all terminals
D
WIRING DIAGRAM
[1] KNX Master Control W8
[2] KNX Master Control W2
For further information please follow our
detailed installation guide (www.somfy.com)
We care about our environment. Do not
dispose of the appliance with usual house-
hold waste. Give it to an approved collection
point for recycling.
E
STATUS INDICATION
[1] Fieldbus controller TCP/IP 750-891
LED
Color
Meaning
LINK
indicates a connection to the physical network
1
green
ACT
at port 1
LINK
indicates a connection to the physical network
2
green
ACT
at port 2
MS
red/green
indicates the status of the node
NS
red/green
indicates the network status
red/green/
indicates the operation of the node and signals via
I/O
orange
a blink code faults encountered
indicates information to the internal bus faults,
red/green/
USR
controlled from the user programm according to
orange
the visualization programming
indicates the status of the operating voltage -
A
green
system
indicates the status of the operating voltage -
B
green
power jumper contacts
[2] 2 Channel Up/Down Counter 750-638
Chan-
Desig-
Sta-
LED
Function
nel
nation
te
A
1
Func-
off
Counter 1: no communication
green
tion
with coupler/controller
DI 1
on
Counter 1: communication with
coupler/controller
B
Status
off
Counter 1: csignal input off
green
DI 1
on
Counter 1: DC 24 V signal input on
C
2
Func-
off
Counter 2: no communication
green
tion
with coupler/controller
DI 2
on
Counter 2: no communication
with coupler/controller
D
Status
off
Counter 2: signal input off
green
DI 2
on
Counter 2: DC 24 V signal input on
[3] RS485 Interface 750-653
LED
Channel
State
Function
A
Function
off
No operational readiness or the
green
internal data bus communication is
interrupted
on
Operational readiness and troublefree
internal data bus communication
B
T x D
off
Signal transmission TxD running
1)
green
on
No signal transmission TxD
D
R x D
off
Signal transmission RxD running
1)
green
on
No signal transmission RxD
The pulses are very short and therefore the off status is difficult to recognise.
1)
[4] KNX/EIB/TP1 Terminal 753-646
LED
Name
State
Function
A
Router mode
off
Operating mode router not active
green
on
Operating mode router active
flashing
Synchronization
B
KNX pro-
off
KNX programming mode not active
red
gramming
on
KNX programming mode active
mode
flashing
Checksum error
C
Data transfer
off
Internal data bus data transfer not
green
module bus
active
flashing
Internal data bus data transfer active
D
Data transfer
off
KNX data transfer not active
yellow
KNX
flashing
KNX data transfer active
E
Device mode
on
Device mode active
green
off
Device mode not active
flashing
Synchronization
F
Buffer
off
No buffer overflow
red
overflow
on
Overflow
G
Internal fault
off
No fault
red
on
• Checksum error
• Device not configured
H
KNX bus
off
KNX bus voltage not available
green
voltage
on
KNX bus voltage available