Lucent Technologies Lineage
®
2000 ECS-6U Controller J85501E-1
2 - 14 Product Description
Issue 4 August 1998
J87339A-1. These signals are used to turn off rectifiers or groups
of rectifiers.
Since sequence control is typically part of the ac engine system
rather than part of the dc battery plant system, the rectifier
sequence controller is often outside the battery plant and
interfaces with the rectifiers through the battery plant controller.
The controller equipped with CP2 is capable of rectifier
sequence control without an external sequence controller.
However, a signal to indicate that the plant is being powered by
the reserve system is still required. (See ECS Controller Options
Product Manual, Select Code 167-790-109.)
The TR signal input to the controller may also be used for other
on/off control of rectifiers by an external control device. (See
ECS Controller Options Product Manual, Select Code
167-790-109.)
Float and
Equalize Control
Some Lineage
®
2000 rectifiers are capable of battery equalize
charging in addition to normal float charging. The equalize
feature may be used to recharge flooded type, i.e., non-sealed,
batteries in less time than when the float voltage is used. Some
battery manufacturers recommend equalize charging after a
discharge; others recommend periodic equalizing of batteries.
NOTE
Use of equalize on sealed lead acid batteries is NOT
recommended.
The ECS-6U controller has several methods of controlling the
equalize function in plants that are so equipped:
Hardware Disable: A movable jumper strap on the
113A2 may be used to disable the equalize function and
lock the plant in float mode. This is especially important
for plants equipped with sealed-type or valve-regulated
batteries and for plants powering equipment sensitive to
high voltages. Batteryless plants also have no need for the
equalize function. The controller is always shipped with
equalize disabled by this jumper to prevent accidental
misapplication of the equalize feature. (See Section 4,
“Hardware Setup” for details.)
Local Manual Control: A momentary toggle switch on
the controller front panel may be used to switch the