SPE HF1-NA Serie Manual Operativo página 3

ELECTRONIC BATTERY CHARGER
TECHNICAL FEATURES OF THE HF1-NA SERIES
The innovative characteristics of the HF1-NA range of battery chargers are the following:
1. Advanced technology High frequency system.
2. Charging process fully controlled by microprocessor.
3. Universal input voltage: 100-240 Vac
4. Charging process start in the "soft start" mode.
5. Automatic reset upon connection of a new battery and automatic start of a new charging
cycle.
6. Protection against polarity inversions, short-circuits, over-voltages or anomalies by means
of an output relay.
7. Battery to battery charger connection without sparks on the output terminals with obvious
advantages for the active safety, thanks to the recognition of the battery voltage
downstream the normally open output relay.
8. Signaling of possible anomalies by red LED flashing.
9. Insensitive charge parameters in case of
10. Efficiency > 85%.
11. Output ripple at maximum charge lower than 100mV.
12. Start of the charge cycle even with 2V batteries.
On switching on a new battery charger of the HF1-NA series, the charger will check the battery
voltage and decide whether to start the charging process. If the battery is not connected to the
battery charger, the red LED will flash. If the result of the test is positive after 1 second the
charging of the battery can start, with the red LED on. The output relay closes and the current of
the first phase rises slowly till the nominal value programmed is reached.
If the user disconnects the battery from the battery charger during the charging process, after a
few seconds the battery charger will re-initialize and prepare to start a new charging process.
The progress of the charging process is shown by three LED's: red, yellow and green, as in the
whole range of the battery chargers.
The green LED shows the end of the charging or the last phase in case of deep charging process;
in the former case, the relay is opened to disconnect galvanically the battery from the battery
charger.
Please find in the following table a list of the visual signals of the HF1-NA series.
SIGNAL (LED)
Red LED on
Yellow LED on
Green LED on
Yellow LED flashing
Red LED flashing
RED LED
OPERATING MANUAL
OPERATING PRINCIPLE OF THE HF1-NA
VISUAL SIGNALS
First phase of charge in progress
Second phase of charge in progress
End of charge or maintenance phase
ANOMALIES
UNSUITABLE BATTERY OR BATTERY NOT CONNECTED OR OUTPUT SHORT
CIRCUIT
SAFETY TIMER EXCEEDED
INTERNAL SHORT CIRCUIT
YELLOW LED
±
10% network voltage oscillations.
MEANING
GREEN LED