Velleman VDP6502BL - Manual (Page 3)

VDP6502BL 3 VELLEMAN
b. DMX512 Chain with Termination
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 120Ω resistor between pins 2 and 3, which is then plugged into
the XLR output socket of the last device in the chain.
Please see illustrations to the left.
c. Projector DMX Start Address Selection
All DMX-controlled devices need a digital start address so that the correct device responds to the signals. This digital
start address is the channel number from which the device starts to “listen” to the DMX controller. Enter the correct
number and read it from the display located on the backside of the VDP6502BL.
You can use the same starting address for a whole group of devices or enter an individual one for every device.
When all devices have the same address, all the units will “listen” to the control signal on one particular channel. In
other words: changing the settings of one channel will affect all devices simultaneously. If you set different
addresses, each device will “listen” to a separate channel number. Changing the settings of one channel will only
affect the device in question.
In the case of the 1-channel VDP6502BL, you will have to set the start address of the first unit to 1, the second unit
to 2 (1 + 1), the third to 3 (2 + 1), and so on.
d. DMX Address Setting
You can select the address by setting the DIP switches. DIP switch 10 always has to be ON.
The DMX start address of the fixture is defined by DIP switches 1 ~ 10. The encoding is binary: DIP switch 1 is value
1, DIP switch 2 is value 2, DIP switch 3 is value 4, DIP switch 4 is value 8 etc…
1 2 3 4 5 6 7 8 9 10
1 2 4 8 16 32 64 128 256 *
For example: If the start address should be 95, the settings would be (for switches 1 ~ 10): 1111101000 (1 + 2 + 4 +
8 + 16 + 0 + 64 = 95).
6. Cleaning and Maintenance
1. All screws should be tightened and free of corrosion.
2. The housing, the mounting supports and the installation location (e.g. ceiling, suspension, trussing) should not be
deformed, modified or tampered with e.g. do not drill extra holes in mounting supports, do not change the location
of the connections …
3. Mechanically moving parts must not show any signs of wear and tear.
4. The electric power supply cables must not show any damage. Have a qualified technician maintain the device.
5. Disconnect the device from the mains prior to maintenance activities.
6. Wipe the device regularly with a moist, lint-free cloth. Do not use alcohol or solvents.
7. There are no user-serviceable parts, apart from the lamp (see “Installation”).
8. Contact your dealer for spare parts if necessary.
7. Technical Specifications
Power Supply max. 230VAC / 50Hz
DMX-512 3-pin XLR connector
Dimensions 220 x 220 x 150mm
Total Weight 3.8kg
Lamp 2 x PAR36 DWE 650W / 120V lamp (order code LAMP650/120DW)