102
Andover Controls
Electrical Description
The outputs of the LO-2 module are digital in nature (ON or OFF) yet are designed
specifically to control lighting. The two outputs are electrically connected (via cable) to an
external bracket where two GE-style lighting relays (RR-7 or RR-9) have been mounted.
Both outputs can be controlled via program or be activated manually through override
switches (LO-2-O only) on the front panel. An external momentary switch (a push button,
motion detector or other occupancy sensor) can be wired to control each of the relays as
well.
The GE relays mechanically latch in the ON position when energized. The relay remains
ON until set to OFF from the program or any external override controls. RR-9 relays also
provide operational status information (ON or OFF) that can be read via Plain English
commands. The OUTPUT indicators on the front panel illuminate if the RR-9 relay output
is ON.
Override Controls
The LO-2-O model includes an output override switch for each output.
The operation of the relays can be operated from program control or manual control
using the front panel mounted override switches or externally wired controls.
The following describes the actions associated with each position of the override controls:
ON
The output relay is energized to an ‘ON’ state manually by setting the
switch to ON. The spring-loaded momentary action of the switch moves
the switch back to the center position after pressing.
OFF
The output relay is de-energized to an ‘OFF’ state manually by setting
the switch to OFF. The spring-loaded momentary action of the switch
moves the switch back to the center position after pressing.
ON
OFF
LO-2
Technical Manuals Online! - http://www.tech-man.com
To Next Page
Loading...