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11
2.2.6 ACE2 Lamps-Out
Monitoring Board
The ACE2 lamps-out monitoring (LOM) board (Figure 5) consists of a processor
communicating over a fiber optic serial communications link, with up to three Current and
Voltage Modules (CVM). In addition to RMS voltage, RMS current, apparent power (VA), and
true power (WATTS), the LOM Board also calculates the number of lamps burned out at each
brightness level. The Lamps-out function can detect up to 16 burned out lamps.
If the CCR is controlling multiple circuits through circuit selectors, each of the circuits may
have a CVM monitoring voltage, current, watts, VA, and the number of lamps out on the
circuit.
The setting of the two-position DIP switch (SW1) depends on the number of circuits
monitored and the number of Lamps-Out boards used. If the ACE2 contains only one Lamps-
Out board, the settings are:
— Switch 1 - Off
— Switch 2 - Off
If the ACE2 contains a second Lamps-Out board, the SW1 settings on the second board are:
— Switch 1 - Off
— Switch 2 - On
If the ACE2 contains a third Lamps-Out board, the SW1 settings on the third board are
— Switch 1 - Off
— Switch 2 - On
The third Lamps-Out board also has a 4-port jumper with a jumper on pins 1 and 2.
Figure 5:
Lamps-Out Monitoring Module
1. Switch (SW2)
2. SW1 Switch Positions for Monitoring Additional Lamps-Out Boards
3. IC Chip Sets
4. Fiber Optic Sockets (one shown installed)
1
2
3
4
