Dove Systems 1-6 Ch. HLC - Manual (Page 4)

4
The DB25 is wired as follows:
pin 1 channel 1
pin 2 channel 2
. .
. .
pin 24 channel 24
pin 25 common
The control signal output from the panels is 0 to +10VDC referenced to signal common. The common
conductor must be wired from panel to panel to the dimmer pack. Failure to do so will result in no
panels working, some panels not working, or some channels dimming as others are raised.
The panels require a power supply of between +12 and +15VDC. This is usually supplied by the dim-
mer pack. Several HLC-6 panels may draw more current than the dimmer pack can supply, resulting
in flickering lights. If the dimmer pack lacks a power supply or cannot supply enough power, a simple
"wall wart" type supply of +12V 500mA or more may be wired at any station or the dimmer end and
plugged into a wall receptacle.
The clear line is wired from panel to panel but is not used at the dimmer pack.
Each house light output channel may control more than one dimmer input. For instance, a HLC-1
may control dimmers 1 through 3. Simply loop these control inputs together at the dimmer pack.
Panels of differing sizes, for instance a HLC-6 and HLC-1, may be wired together such that the HLC-
6 provides discrete control for each channel while the HLC-1 controls all channels. In this case, do
not loop the inputs together at the dimmer. Use diodes from the output from the HLC-1 to as many
channels as desired. Diodes must be wired into the HLC-1 to prevent signals from the HLC-6 from
backfeeding to other channels. Refer to the diagram at the rear of the manual.
When all connections have been made, the system may be energized and tested. The green and red
LEDs on all panels will glow slightly. If both LEDs are off at any panel, check the power supply con-
nection. If a green LED is on but the red one is off, press the off button.
Press the take control button at the first panel. The green LED will glow brightly, and the red one will
go out. Run up the master slider. Then run up some channel sliders and watch the house lights go
up. Press the off button and watch them go out. Repeat this process at the other stations.
OPERATION
The green and red LEDs glow dimly when another panel has control. When the take control button is
pressed, the green LED glows brightly and the red LED is off. When the off button is pressed, both
LEDs glow dimly.
The take control button seizes control from all other panels in the chain. The lights come up to the
levels set on the sliders at that panel only. The master slider is a proportional control: the lights come
up in proportion to the master level. For instance, if the master is at 50% and channel 1 at 80%, then
channel 1 comes up to 50%*80%=40%. The off button turns off all panels in the system as well as
itself.