Micro
ARE-M Series 24V Chargers, Single Phase
Introduction
PM990-1070-24, Issue 12
1-8
1.3.3 Front Panel Displays and Controls
Display ............................................... LCD, 2 lines x 20 characters, with green LED backlight
Display Accuracy ............................... 1% (voltage, current, or time reading)
Control Modes ................................... Manual float/equalize, user selectable from keypad
LED Indication Standard ................... Alarm - red; AC power - green
LED Indication Optional ................... HVA, LVA, NCA-red, ACF-yellow, +GND,-GND-green
High Voltage Shutdown
Adjustable ..................................... 2.00-2.53 Vpc (Volts per cell), LED indicator; see table below;
1-30 Sec delay
Fixed Redundant ........................... 2.66 +/-0.08 Vpc
Float/Equalize .................................... State indicated; Equalize remaining time shown
Load Share Active ............................. Chargers operating in parallel with +/-5% of rated output over
10% to 100% of current threshold
Ground Detection
Disconnect Switch (optional) ....... Breaks the connection to the chassis (earth) for troubleshooting
grounds on the dc system or to eliminate interaction with an
external ground detection system
Relay/Lamp Test ................................ Provided in setup routine (password protection available)
Control Adjustments (password protection available)
Float Voltage ................................ 1.85-2.35 Vpc (Volts per cell); see table below
Equalize Voltage .......................... 2.0 -2.45 Vpc; see table below
Manual Equalize ........................... On, Off, Equalize Duration (1-255 hours)
Auto-Equalize
After AC Fail ........................... On, Off, Equalize After (1-7200 minutes), Equalize Duration (1-
255 hours)
Periodic ................................... On, Off, Equalize Duration (1-255 hours)
Current Limit ................................ 80-110% of charger rating
Periodic Equalize .......................... Off, 168-8760 hours
Temp Comp…………………….. 0.1-10 mV/cell/°C
TABLE 1-2 SETTABLE PARAMETERS, STANDARD MODELS
Model
Float Range
Equalize Range
HVSD Range
ARE-M24 Series
22.2-28.2V
Float-29.4V
24-30.4V
Alarm Adjustments (password protection available)
Low Voltage (LVA) ........................... 1.50-2.20 Vpc; alarm delay 1-300 seconds
Very Low Voltage (VLVA) ............... 1.50-2.20 Vpc; alarm delay 1-300 seconds
High Voltage (HVA) .......................... 2.20-2.50 Vpc; alarm delay 1-300 seconds
No Current .......................................... Up to 30% of rated current; alarm delay 1-300 seconds
Positive Ground Fault ......................... 500-20,000 Ohms; 1-300 seconds delay
Negative Ground Fault ....................... 500-20,000 Ohms; 1-300 seconds delay
Charger Fail ........................................ 1-300 seconds delay
AC Power Fail .................................... 1-300 seconds delay; relay delay fixed at 0.5 seconds
High Battery Temperature (HBTA) ... 0-200
°
C; 1-300 seconds delay
Summary............................................. 0-300 seconds delay
Password Protection ................................. Yes, control and alarm settings; 00001-65500
NOTE: All "per cell" voltages are based upon the unit's nominal number of lead-acid cells.
