Unipower ARR-M Series - 4. MANUAL ACTIVATION OF EQUALIZE OR FLOAT MODE

BATTERY CHARGER USER’S MANUAL PART- 2: THEORY OF OPERATION
MCEnPC23-REV.2.4 Page 9
 Via a preset delay (periodically);
 Via external signal (optional);
 Via ModBus RS232 / RS485, or ModBus TCP/IP communication (optional);
 Via DNP3 RS232 / RS485 communication (optional);
 If DC Output voltage is within a preset value (Low Volt Equalize: optional);
 If battery capacity is within a preset value (optional);
 After an AC Failure during a preset delay (optional);
 If the battery charger is within a current limit during a preset delay (optional);
The image below shows the LCD display when the charger is in “Equalize” mode.
Equalize
136.2V
9.5A
Figure 7 : Equalize Mode Display.
3.5 “EqualizeCurrentLimit2”MODE

The maximum Equalize current is preset at the factory. The image below shows the LCD display when the charger
is in “Equalize Current Limit” mode.
Limit2Current
128.5V
20.1A
Figure 8 : Equalize Current Limit Mode Display.
4. MANUAL ACTIVATION OF EQUALIZE OR FLOAT MODE
When ordered, the charger can be configured for the manual “Equalize” mode. Please refer to your order and the
battery manufacturer to confirm the Equalize requirement. If “Equalize” function does not appear on the LCD, then
this automatic function has been disabled at the factory. Contact the agent or the manufacturer for more information.
Switching the charger from “Float” to “Equalize” mode can be done manually through the menu. Other equalizing
options are also included below. The equalizing time is adjustable between 1 hour and 8191 hours.