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3. Remote Alarm Contacts: 1T Terminals 17, 18, and 19 provide contacts for a remote
indication that the switch is not in "Auto" position. 1T Terminals 20, 21, 22, and 23, 24,
25 provide two (2) sets of Engine Running contacts. One set can be used for remote alarm
indications, and the other for any other required control function. 1T Terminals 26, 27 and
28 provide a set of contacts for a remote indication of a system failure. 1T Terminals 29, 30
and 31 provide a set of contacts for remote indication of the failure of either battery. 1T
Terminals 34 through 41 are used to provide an alarm signal in case of low fuel level
(Option F), or any other pump room alarm conditions (Option K). These alarm functions
require N.O. contacts that close to represent an alarm condition. 1T terminal 34 is a
common terminal for all alarm sensor contacts. 1T Terminals 35 through 41 connects to
one side of the pump room alarm sensor contacts. Relay 20CR is an Alarm Silence relay
energized by "Alarm Silence" pushbutton 5PB. 20CR is held energized by its own N.O.
contacts (terminals 6 and 9) as long as the alarm condition is present. When the alarm
condition is cleared 20CR N.C. contacts (terminals 1 and 7) open and let 13CR drop out.
4. Individual Alarm Contacts (Option A): Contacts for individual indication of each alarm
condition along with customers specified alarms may be provided by Relays 51CR through
60CR and one pole of 15CR and 18CR. These contacts are wired to 1T Terminals 51
through 86.
5. Battery Charger Operation (Option J): The Battery Chargers are mounted in the engine
controller, and are factory wired to the controller terminal block from which they obtain the
120 volt AC supply voltage, and through which they provide charging current to the
batteries. The charging current to the two (2) batteries is monitored by means of two (2)
ammeters mounted in the controller light panel. Voltmeters are also provided to monitor
the two (2) battery voltages.
The battery charger is line voltage regulated, and will operate over a voltage range of 94
volts to 132 volts at 60 Hz (or 50Hz for a 50Hz controller). The charger output is current
limited and provides full protection during the engine cranking cycle.
The battery charger will not function if a battery is not connected to the controller. The
battery fault light on the charger will be illuminated and the charger failure lamp on the
controller and the audible alarm will be on. In addition if a battery is missing the
appropriate battery light will go out and an alarm will sound.
IMPORTANT!
PART VII: BATTERIES/BATTERY CHARGER
A. Inspect For:
1. Engine starting batteries have been inspected for proper: electrolyte (acid) level, location
(battery rack), ventilation, adequate cable size, and correct electrical/mechanical
connections to engine and controller.
2. Integral battery charger has been connected to proper A.C. supply voltage. It is preferable
that an external circuit breaker/disconnect means rated at least twenty (20) amps be utilized
for A.C. supply voltage.
3. The integral battery charger is designed to meet the requirements of NFPA-20, and bring a
"good" battery (discharged only) back to a full charge within a continuous 24 hour period
under normal conditions.
Upon energizing the integral battery charger, the panel mounted controller ammeters will indicate a
high rate of charge (10-15 amps/meter). Voltmeters should indicate proper voltage 12/24 volts D.C.
depending on system voltage.
Generally, when all conditions are normal, the batteries will come to a full charge prior to the 24
hour period. As batteries begin to charge, the controller ammeters will indicate a gradual decrease in
current flow.
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