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EnForcer™ SCR Service Manual I.B. 1561
20
DEFAULT SETTINGS
To set the control board to the default control board settings, perform the following actions. Note that default values will
not necessarily match the charger nameplate values. Entering
Service Parameters and resetting selected parameters
may be necessary.
1. Remove power to the control board.
2. Before applying power to the board, hold down the UP and DOWN pushbuttons.
3. Reapply power. Hold down the
UP and DOWN pushbuttons, for approximately five seconds, until the display
reads Default Parameters .
4. Release the UP and DOWN pushbuttons.
5. All battery profile settings will now be reset to the original default settings.
FIELD CALIBRATION
No field calibration is necessary. All control boards are factory calibrated. No pots or adjustments are available.
Return all failed or defective boards to the factory.
RECHARGE CHARACTERISTICS
When a charge cycle begins, constant current is applied to the battery (start current mode). This constant current is
called start rate current. When the gassing voltage point (80% charge voltage of 2.37 volts/cell) is reached, the charger
stops applying constant current, and starts applying constant voltage (Constant Voltage mode).
GASSING VOLTAGE POINT NOT REACHED
If the gassing voltage point is not reached during the time allotted (which is factory set for 6 hrs), a time-to-gassing fault
occurs resulting in charger shut down.
GASSING VOLTAGE POINT REACHED
When the gassing voltage point is reached within the time-to-gassing period, the charge cycle enters constant voltage or
E mode. During constant voltage mode, the current tapers down to approximately 4.5 amps per 100 AH. At this point, the
charger stops applying constant voltage and returns to applying constant current. This constant current is called finish
rate current.
FINISH CURRENT MODE REACHED
If charger current drops below finish rate, the cycle will continue charging until termination time or a flattening of the
battery voltage(dvdt) is achieved
EQUALIZE MODE
If this is an Equalize charge cycle, once the charger completes the normal cycle, it will enter Equalize mode where it will
equalize all the cells in the battery. It is recommended that every fifth or sixth charge cycle be an equalize cycle (check
with Service representative).
During Equalize mode the charger applies constant current at the same rate as the current in finish current mode. The
Equalize mode adds 3 hours to a daily charge cycle.
REFRESH MODE
Refresh mode will be entered after the charge cycle has completed, if the battery is left connected to the charger for the
period of time specified. The refresh wait period is factory set for 24 hours. A refresh charge assures that the battery is
fully charged.
During Refresh mode, the charger applies constant current at finish rate. The time spent in Refresh mode is adjustable.
Refresh Charging time is defaulted to 20 minutes.
CHECKING THE RECHARGE CHARACTERISTICS