
Lucent Technologies Lineage
®
2000 ECS-6U Controller J85501E-1
Issue 4 August 1998
Operation 6 - 1
6
Operation
Front Panel
Switches and
Indicators
The front panel switches and indicators provide the only
operator interaction in a basic controller which is functioning
normally. In the event of a controller malfunction, refer to
Section 7, Troubleshooting. The front panel controls and
displays are shown, as numbered and described below, in Figure
6-1.
Table 6-A: Front Panel Switches and Indicators
1. OUTPUT
display
Four-digit LCD display shows the plant
dc voltage or load dc current. (See 2.)
2. VOLTS
AMPS switch
Two-position switch selects either plant
dc voltage or load current for display.
The switch may be left in either
position. (See 1.)
3. FLOAT EQ
switch
Three-position, momentary, center-off
switch selects either float mode or
equalize mode of rectifier operation.
4. ACF indicator Yellow LED, when lit, indicates one or
more rectifiers have reported a loss of ac
input power. This may be treated as a
major or minor alarm, at the user's
discretion.
5. BD indicator Red LED, when lit, indicates the plant
voltage is below the preset threshold.
This is a MAJOR alarm condition.