Urmet 1071/15 Manual Del Usuario página 5

ENGLISH
The module may be used to operate off-the-shelf
control units which accept a 0/1-10V analogue input
as control input to adjust the brightness of lights of
various type.
The dimmer module outputs may be configured to
operate control units of two different types:
• 0-10V. Direct voltage from 0 to 10V is used to
control thus allowing to adjust brightness (in
accordance with IEC61131-2): brightness of the
light will be 100% when the control voltage is
equal to 10V, and the light will be off when the
control voltage drops to 0V. If the connection wire
to the control unit is interrupted, the control unit
will read this as 0V and the light will consequently
be off.
DS1071-009
• 1-10V. This mode is mainly used for dimmable
ballasts for fluorescent lights (standard IEC60929
Annex E.2). In this manner, the dimmable
electronic ballast can supply current to the
1071/15 module. The lower the drawn current, the
higher the voltage and brightness of the light.
Voltage and brightness decrease as the drawing
current increases. The voltage at which the light
is turned off (about 1 V) is actually set by the
ballast. It is advisable to insert a relay in series to
power to ensure the light is turned entirely off
The dimmer module output can draw up to 10mA
and consequently control up to five dimmable
ballast in parallel. If the connection to the control
unit is interrupted, the control unit will interpret this
(1) Dimmable ballasts with integrated relay are available. In this
case, the relay is automatically opened when the control
voltage drops to about 1V.
(1)
.
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