Velleman projects VMBDMI Extended user manual - Manual (Page 9)

VMBDMI Dimmer manual – edition 1 9
USE
This module can be used to dim dimmable mains voltage lamps or low voltage lamps in combination with a
dimmable iron core transformer.
The module is added to the Velbus system and controlled via the control panel VMB4PD or via pushbuttons
connected to a pushbutton interface VMB8PB.
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 to the module (mind the polarity).
Connection scheme with mains voltage lamps
Attention:
At higher output power the dimmer housing becomes hot. It is strongly recommended to keep sufficient free space
around the dimmer to allow adequate ventilation.