Lucent Technologies Lineage
®
2000 ECS-12U Controller J85501E-2
2 - 12 Product Description Issue 3 July 1998
Minor Fuse Alarm (MNF)
Rectifier Fail (RFA)
AC Fail (ACF)
Equalize On (EQ)
Microprocessor Alarm (µP)
Datalogger Alarm (DLA)
Red LEDs indicate the following Power Major alarms:
Battery on Discharge (BD)
Major Fuse Alarm (MJF)
When no alarms are present and the controller is powered, the
green NORM LED lights to indicate normal operation. The
Equalize LED (EQ) may light when the NORM LED is on, since
equalize is not considered an alarm condition. See Sections 4 and
5 for more information on the equalize function.
Front Panel
Meter
A four-digit, backlit liquid-crystal display is located on the front
panel. A toggle switch next to the display selects either the plant
voltage or the plant load current to be shown. A calibration
potentiometer (R407) on the CP4 display board is used for fine
adjustment of the plant voltmeter. See Figure 2-3.
When the meter select switch on the front panel is set in the
AMPS position, the display indicates the plant load current in
amperes. This current is measured with a calibrated shunt
located in the dc distribution return bus or from the AKC1B
shunt isolator circuit pack.
A slide switch (SW409) or jumper (P401) is available on the
CP4 display board to set a decimal point after the third digit. For
maximum plant currents of 999A or less, place the jumper or
slide switch in the decimal position (DEC); for currents over
999A, place the jumper or slide switch to the no decimal position
(NO DEC). See Figure 2-3.
Ammeter Scale Plant shunts are available with standard full-scale dc output
voltages for a variety of full-scale dc currents. The signal from
the shunt in any Lineage
®
2000 battery plant is a 0 to 50 mV dc
voltage proportional to the load current. The controller may also
be used in a plant that is equipped with other than a 50 mV shunt
(e.g. 100 or 25 mV) as long as the shunt is located in the
distribution return bus.
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