Seav LR 2299 Serie Bedienungsanleitung Seite 17

Control input test:
On each low voltage control input, the control unit uses a LED
signal to make the status readily known.
Operating logic: when a LED is on it means the input is closed,
when a LED is off it means the input is open.
MANAGING PROGRAMMING LEDS:
After 5 minutes of inactivity in the programming procedure, the
control unit will automatically switch off the programming LEDs
to save energy. The LEDs will light up, depending on the
previously set programs, only when the SEL or SET keys are
pressed or when a motion command has been received.
OPTIONAL MODULES:
The control unit can be fitted with Optional Modules to enable
additional functions. Several functions will be available based
on the type of optional module installed. Refer to the optional
module instruction manual for their technical features.