Operation – Velleman VDPL300SD User Manual
Page 5

VDPL300SD
V. 03 – 08/01/2013
5
©Velleman nv
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Connect the device to the mains with the power plug. All devices must be powered directly off a grounded
switched circuit and cannot be run off a rheostat or dimmer circuit, even if the rheostat or dimmer channel
is used solely for 0 % to 100 % switching.
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The VDPL300SD has a power output [6] to supply power to another VDPL300SD. When connecting several
VDPL300SDs in a daisy chain via this output, make sure that the total current does not exceed the power
line’s nominal current. Use power cables with an adequate section.
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The installation has to be approved by an expert before the device is taken into service.
DMX-512 Connection
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When applicable, connect an XLR cable to the female XLR output of a controller (not incl.) and the other
side to the male XLR input [9] of the VDPL300SD. Multiple VDPL300SDs can be linked through serial
linking. The linking cable should be a dual core, screened cable with XLR input and output connectors.
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Maximum recommended serial data link distance is 500 meters (1640 ft). Maximum recommended number
of devices on a serial data link is 32 devices.
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A DMX terminator is recommended for installations where the DMX cable has to run a long distance or is in
an electrically noisy environment (e.g. discos). The terminator prevents corruption of the digital control
signal by electrical noise. The DMX terminator is simply an XLR plug with a 120 Ω resistor between pins 2
and 3, which is then plugged into the XLR output socket [8] of the last device in the chain.
7.
Operation
The VDPL300SD can be used in the following modes:
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stand-alone mode: automatic or sound-activated
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master/slave
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with a DMX512 controller.
7.1
Control Panel Navigation
Access the control panel functions using the four panel buttons [10] located directly underneath the
display [11]. From left to right:
Button Function