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9001-0024
LED
Color
BATT
Yellow
AC
Green
See Figure 4-2 for locations of LEDs.
6.2
Trouble Conditions
Trouble Condition
Low AC
(AC input voltage is low or off
for 6 hours or longer.)
Low Battery
(Battery voltage is less than
21.4 VDC.)
Earth Ground Fault
(The earth terminal is connected
to one of the positive or
negative terminals on the output
or auxiliary output circuits.)
Power Limit At AUX
(Current draw at the auxiliary
power terminals is exceeding
3.0 amps.)
Power-limited OUTPUT
(Current draw at an output
terminal is exceeding 3.0
amps.)
EOL supervision trouble
(Equivalent resistance of the
EOL resistor is outside the
range 2k - 10k.)
Note:
While Input 1 & 2 are activated, Input 1 & 2 will not open to indicate a trouble or supervisory condition. Once the
circuit is deactivated it will open to indicate a trouble or supervisory condition.
When ON, a low battery condition exists.
When OFF, there is no AC power to the unit. Under normal conditions, this LED is ON
to indicate the presence of AC power.
Input 1 and Input 2 supervision circuits open after a 6 hour delay.
The green AC LED turns off as soon as low AC or loss of AC occurs (does not wait 6 hours).
The trouble relay is de-energized after a 6 hour delay.
The trouble restores within 1 minute of the AC voltage restoring to a normal level.
Input 1 and Input 2 supervision circuits open. The yellow "BATT" LED lights.
The trouble relay is de-energized.
The trouble restores when battery voltage is greater than 22.4 VDC.
Input 1 and Input 2 supervision circuits open. The yellow "FLT" LED lights.
The trouble relay is de-energized.
The trouble restores when the fault between the earth ground and one of the output circuit
terminals is removed.
Power disconnects at the AUX terminal. Input 1 and Input 2 supervision circuits open. The
yellow "AUX" LED lights. The trouble relay is de-energized.
The trouble restores when the overcurrent condition no longer exists. When a circuit goes into
a power limited state, it will reverse the polarity of the voltage at the terminals and verify the
load. If it is more than 1k ohms, the power limit will self-restore.
This does not automatically occur for some devices typically connected to auxiliary power.
Power limit conditions do not restore in reverse polarity monitoring if the devices are not
polarized (for example, some door holder devices). To allow automatic restores for
power-limited auxiliary circuits, it is recommended that all non-polarized devices be polarized
using a diode in series with each device.
Power at the OUTPUT is disconnected. Input 1 and Input 2 supervision circuits open. The
corresponding yellow LED lights. The trouble relay is de-energized.
The trouble restores when the overcurrent condition no longer exists.
Input 1 and Input 2 supervision circuits open. Corresponding yellow LED lights.
The trouble relay is de-energized.
Trouble restores if an EOL within (2k-10k) appears at the output terminals.
6-22
Description
What Happens
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