1-10
To determine which channel is in an Earth Ground trouble condition in any wiring mode,
1. When the Addressable Controller LEDs indicates a system trouble of Positive or
Negative Earth Ground, reinitialize the Addressable Controller (typically by switching
any DIP switch on the board).
2. The Addressable Controller LEDs should now display the channel-specific Earth
Trouble. If you still see the system trouble without any channel indication, hit the
Trouble Scroll button (PB-SW6) on the system board until the channel-specific trouble is
displayed. Refer to Figure 1-2 for the Trouble Scroll button location.
3. The system trouble will clear automatically once you correct the trouble condition. To
clear the channel trouble message, reinitialize the Addressable Controller once again.
This green LED indicates that AC power is present and is being used as the 4009 TrueAlert
Addressable Controller power source. The 4009 switches to the battery whenever the green LED
is OFF.
CAUTION: The green AC LED indicates “Good AC Power.” In the event of a
brownout condition, the unit will switch to battery power but lethal
voltages may still exist. DISCONNECT POWER BEFORE SERVICING.
Hardware Components, Continued
Isolating Earth
Grounds
AC Power Indicator
(LED 9)
To Next Page
Loading...
