VELBUS INSTALLATION GUIDE
©2015 Velbus
65
www.velbus.eu
Double check the addresses of the "missing" modules. There is a
chance that addresses have been duplicated.
Do not forget that addresses of the VMB4PD and VMB1TC can be
manually set via the module.
A bad contact in the wiring can cause so much disturbance on the bus
that only a few modules are found during a scan.
Are you using the latest version of Velbuslink? (Free download on
My VMB8PBU modules give a different address than the one I set
Care is needed when connecting these modules, as the left two wires are
common (marked "COM").
If, instead of these, you use other wires (of the channels) as common wires,
you will get such strange effects. Do not blindly follow the colours of any wires.
Sometimes addresses
appear
to have been changed in Velbuslink simply
because the view has been switched from decimal to hexadecimal (this setting
can be found in the “View” menu on top).
Some input modules provide their status as "pressed" even though
nothing is connected
If you connect feedback LEDs, you must respect the polarity of these LEDs. If
you mount them backwards you get the effect of an activated push button.
Some LEDs are now available in “Dual Polarity”, which can adversely affect the
push-button interface. A simple diode in line will correct this.
Everything works but after a while modules vanish from the system
Make sure you supply enough power to feed all the modules. The power supply
unit VMBSMPS will de-activate if the total power consumption goes above 4.5
A.
Some modules blink or do not respond
When configuring modules with mechanical addressing, it is best to avoid
addresses above 80, since some ranges of addresses are provided for
programming without a PC (see detailed manual of each module).
Summary of Contents for VMB4RYLD
Page 1: ...Installation Guide ...
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