Lucent Technologies Lineage
®
2000 ECS-12U Controller J85501E-2
Issue 3 July 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.
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.
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