Toshiba 300 KW operation manual Make sure that the Equal Charge LED is on

14.8Changing to Float Charge from Protection Charge (If applicable)

The manual procedure to change from protection charge to float charge is shown in Step 1-3.This operation applies to batteries after they have experienced over temperature condition.

See the Note below for an explanation of float charge and protection charge.

LED Key

- LED Off

- LED On

- LED Flash

STEP 1

Make sure that the EQUAL CHARGE LED is “ON”.

AC INPUT

BATTERIES

BYPASS INPUT

STEP 2

Make sure that the “BATT FAULT1” warning goes away.

UPS SUPPLY

AC - Vo 480 V

AC - Io 50%

	UPS
CONVERTER	INVERTER
FLOAT CHARGE	AC
EQUAL CHARGE
DISCHARGE	SWITCH	AC OUTPUT

BYPASS

UPS SUPPLY

AC - Vo 480 V

AC - Io 50%

STEP 3

Press “FLOAT/EQUAL” button for at least

0.5seconds. Procedure completed.

NOTE

The battery is normally being charged at float charge mode. To prevent thermal runaway of the battery, this mode will automatically be changed to protection charge when a “BATT FAULT1” (Battery over temperature) warning occurs.

In protection charge mode, the battery is automatically charged at a voltage about 5% lower than float charge.

If the “BATT FAULT1” warning message goes away and a programmed duration is elapsed (about 24 hours), this mode will automatically be changed back to float charge. Thus, it is not usually required to change the recharge mode manually back to the float charge.

AC INPUT

BATTERIES

BYPASS INPUT

	UPS
CONVERTER	INVERTER
FLOAT CHARGE	AC
EQUAL CHARGE
DISCHARGE	SWITCH	AC OUTPUT

BYPASS

62 G8000 Series Installation and Operation Manual