Velbus VMB8PBU Service manual

8-channel pushbutton
module
V
V
VM
M
MB
B
B8
8
8P
P
PB
B
BU
U
U
Extended manual that explain how to use all possibilities of this 8-
channel pushbutton module and how you can connect up to 8
pushbuttons from any brand to your Velbus installation.
Velbus team

28-channel pushbutton module | VMB8PBU – ed.1
CONTENTS
CONTENTS...................................................................................................................................... 2
DESCRIPTION ................................................................................................................................. 3
CHARACTERISTICS ....................................................................................................................... 3
VELBUS CHARACTERISTICS........................................................................................................ 4
OVERVIEW ...................................................................................................................................... 5
CONNECTION.................................................................................................................................. 6
Connecting BTicinoTM pushbuttons.......................................................................................... 6
Connecting a LED on a BTicinoTM pushbutton ........................................................................ 7
Connecting NikoTM pushbuttons ............................................................................................... 8
Connecting a LED on a NikoTM pushbutton.............................................................................. 9
TERMINATOR................................................................................................................................ 10
USE ................................................................................................................................................ 11
Address: .................................................................................................................................. 11
Name:...................................................................................................................................... 11
Response time:........................................................................................................................ 11
Suppressing:............................................................................................................................ 11
Inversion:................................................................................................................................. 11
Multichannel pushbutton:......................................................................................................... 11
Double-channel pushbutton:.................................................................................................... 11
Suppressing:............................................................................................................................ 11
Lock/Unlock:............................................................................................................................ 12
Backlighting:............................................................................................................................ 12
Feedback:................................................................................................................................ 12
Status feedback of a contact:.................................................................................................. 12
Switching programs:................................................................................................................ 12
Activating/deactivating the switching program:........................................................................ 13
Selection switching program:................................................................................................... 13
Alarm clock:............................................................................................................................. 14
Activating/deactivating the alarm clock:................................................................................... 14
Sunrise and sunset:................................................................................................................. 14
Activating/deactivating sunrise and sunset related programs: ................................................ 14
Date and time:......................................................................................................................... 14
VERIFY SOFTWARE VERSION.................................................................................................... 15

VMB8PBU – ed.1 | 8-channel pushbutton module 3
DESCRIPTION
With this pushbutton interface it is possible to connect up to 8 pushbuttons from any brand to your Velbus installation.
Optional LEDs for feedback and backlighting can easily be connected
CHARACTERISTICS
Use:
•Up to 8 pushbuttons connectable
•Can be used to connect any type of pushbutton to the Velbus (connection wires may not be extended)
LED indications:
•Possible to connect a LED over the pushbutton
oVMBLDN: blue LEDs for NIKOTM pushbuttons
oVMBLDAN: amber LEDs for NIKOTM pushbuttons
oVMBLDB: blue LEDs for BTicinoTM pushbuttons from the Living®, Light® and Light-Tech® series
oVMBLDAB: amber LEDs for BTicinoTM pushbuttons from the Living®, Light® and Light-Tech® series
•Backlighting of the buttons:
oSwitchable, on or off
oBrightness adjustable
•Feedback on the buttons
oSwitchable, on or off
oFlashing mode on or off
oStatus feedback of a contact (open or closed)
•Presence of input voltage
•Sending or receiving data over the Velbus
Configuration:
•Only configurable via a Velbus pc interface (VMB1USB, VMB1RS or VMBRSUSB) and the Velbuslink software
•Software addressing (up to 250 addresses possible)
•Pushbutton settings:
oResponse time for each pushbutton adjustable between 0, 1, 2 or 3 seconds
oNormally open or normally closed type
oDouble-channel pushbutton (short or long push)
oMultichannel pushbutton (each push selects the next channel
oLock or unlock
osuppress
•Switching times
oTo simulate a pushbutton operation at a certain time
oDaily, weekly, monthly or yearly program
oChoose between summer, winter or holiday program
oPushbutton lock and unlock can be added to the program
oTwo different wake-up and bed times that can be used as references in the program
oSunset/sunrise linked programs
oSwitching programs can be enabled and disabled per pushbutton.
•Functions via external Velbus pushbuttons
oLock or unlock
oActivate/deactivate switching programs
oActivate/deactivate wake-up and bed time related programs
oActivate/deactivate sunrise related programs
oActivate/deactivate sunset related programs
oChoose between summer, winter or holiday or no program
•Sunrise and sunset times are adjustable
•Configuration settings are preserved during power cuts
Power supply module:
•Required operating voltage: 12...18Vdc
•Consumption when idle: 16mA
•Maximum consumption (all LEDs on): 35mA
Dimensions:
•width x height x depth: 40x30x14mm

48-channel pushbutton module | VMB8PBU – ed.1
VELBUS CHARACTERISTICS
•2-wire communication for Velbus data + 2 wires for power supply
•Data transmission rate: 16.6 Kbit/s
•Serial data protocol: CAN (Controller Area Network)
•Short circuit protected (both towards ‘+’ and ‘-‘ of the power supply)
•Bus error indication: 2 short flashes of the indicator LEDs
•Self repairing after 25 seconds when a bus fault occurs
Each pushbutton can be given a name of up to 16 characters (max.).
The module can send following messages:
•Pushbutton pushed, pushed long or released
•Module status
•Module type: 8-channel pushbutton module (including software version)
•Pushbutton names
•Communication fault counter
•Memory content
•Time and date
•Turn off, switch on or flashing of status LEDs
The module can receive following commands:
•Pushbutton pushed, pushed long or released.
•Switch off indicator LEDs
•Switch on indicator LEDs
•Slowly flashing of the indicator LEDs
•Fast flashing of the indicator LEDs
•Very fast flashing of the indicator LEDs
•Request status
•Request module type and software version
•Request pushbutton names
•Request memory content
•Overwrite memory content
•Request communication fault counter
•Request time and date
•Set time and date
•Set local or general alarm
•Lock or unlock pushbuttons
•Suppress or activate pushbuttons
•Select program

VMB8PBU – ed.1 | 8-channel pushbutton module 5
OVERVIEW
12345678C Velbus power supply
Velbus
Terminator
Pushbutton connections
Velbus Receiving LED Power LED
Velbus LED

68-channel pushbutton module | VMB8PBU – ed.1
CONNECTION
To connect the Velbus modules with each other, a twisted pair cable is recommended (EIB 2x2x0.8mm², UTP
4x2x0.51mm² - CAT5 or equivalent).
When a lot of modules (more than 10) are connected on the Velbus cable or the Velbus cable is very long (over 50m)
it is important to foresee a cable with sufficient wire diameter (0.5mm
2
of more).
Connect the bus and power supply to the module (mind the polarity).
Connect the pushbuttons. Unused wires should be isolated.
Remark:
DO NOT extend the connection
wires for the pushbuttons
Connecting BTicinoTM pushbuttons

VMB8PBU – ed.1 | 8-channel pushbutton module 7
Connecting a LED on a BTicinoTM pushbutton
Glue the blue (type VMBLDB) or amber (type VMBLDAB) LED on the pushbutton.
The black connection wire ‘PB’ of the LED is combined with one of the eight pushbutton connection wires.
The white connection wire ‘C’ of the LED is combined with the common connection wire ‘COM’ for the pushbuttons.
Common connection wire
for the pushbuttons
Connection wire
Pushbutton 1
‘PB’ connection wire LED
‘C’ connection wire LED

88-channel pushbutton module | VMB8PBU – ed.1
Connecting NikoTM pushbuttons
Tip: Use ferrules on the wires for the pushbutton connections.

VMB8PBU – ed.1 | 8-channel pushbutton module 9
Connecting a LED on a NikoTM pushbutton
Slide the blue (type VMBLDN) or amber (type VMBLDAN) LED into the slot of the pushbutton.
The black connection wire ‘PB’ of the LED is combined with one of the eight pushbutton connection wires.
The white connection wire ‘C’ of the LED is combined with the common connection wire ‘COM’ for the pushbuttons.
Use ferrules to combine the connection wires
Connect the wires to the pushbuttons.
‘C’ connection wire
LED 2
‘C’ connection wire LED 1 ‘PB’ connection wire LED 2
Connection wire
Pushbutton 1
Connection wire
Pushbutton 2 Common connection wire for
the pushbuttons
‘PB’ connection wire
LED 1

10 8-channel pushbutton module | VMB8PBU – ed.1
TERMINATOR
In normal circumstances only 2 ‘TERM’ terminators must be foreseen in a complete Velbus installation. Usually this
will be on one module inside the distribution box and on the module the furthest from the distribution box.
In all other cases it must be removed.
Remark:
In a wiring scheme with a lot of branches a
terminator is placed on a module inside the
distribution box and on the control panel
furthest from the distribution box. Should
communication problems occur, an additional
terminator can be placed on another branch.
However, the number of terminators should
be kept to a minimum as additional
terminators place a heavy load on the bus.