
Lucent Technologies Lineage
®
2000 ECS-6U Controller J85501E-1
6 - 2 Operation
Issue 4 August 1998
6. MJF indicator Red LED, when lit, indicates an
overcurrent protector on a critical circuit
has operated. Such protectors include
load circuit breakers/fuses, some
controller fuses, and may also include
auxiliary devices such as battery
disconnects. This is a MAJOR alarm
condition.
7. RFA indicator Yellow LED, when lit, indicates one or
more rectifiers have failed for reasons
other than loss of input ac power. This is
a MINOR alarm condition.
8.
µ
P indicator Yellow LED lights under certain
conditions dictated by the CP2
microprocessor board to indicate a
microprocessor alarm.
9. DLA indicator Yellow Datalogger Alarm LED lights as
a warning indication from CP2 and/or
the CP3 datalogger board.
10. EQ indicator
Yellow LED, when lit, indicates that
plant is in equalize charge mode. This is
not an alarm condition.
11. MNF
indicator
Yellow LED, when lit, indicates that a
non-critical overcurrent protector has
operated. Such protectors include some
controller fuses and may also include
battery disconnect circuit breakers.
This is a MINOR alarm condition.
12. NORM
indicator
Green LED is lit whenever there are no
alarms present, to indicate normal
operation. The only other LED that may
be lit when the NORM LED is lit is the
EQ indicator.
13. V+
and
V-
jacks
Test jacks are available for monitoring
the plant charge bus voltage with an
external meter.
14. Local
terminal port
Opening in the front panel reserved for
the local terminal port on the CP2
microprocessor board.
15. ESD
connector
Jack provided for electrostatic discharge
grounding with a wrist strap. The
operator should be grounded to this
point before opening the controller front
panel.
Table 6-A: Front Panel Switches and Indicators