Micro
ARE-M Series 24V Chargers, Single Phase
Setup and Operation
PM990-1070-24, Issue 12
4-1
4.0 SETUP AND OPERATION
This chapter describes setting up and operating a Micro ARE Series Charger using the 2-line display and
4-button keypad on the charger. See Figure 3-1 for the location of the panel, display, and keypad. The
figure also shows the locations of the AC and DC circuit breakers mentioned in sections 4.1 & 4.2.
TURNING ON A COMMISSIONED CHARGER
4.1
1.
Set the AC and DC circuit breakers on the front of the charger to off. See Figure 3-1 for the location
of the breakers.
2.
At the user’s AC electrical service panel, switch on the appropriate circuit breaker to supply power to
the charger.
3.
At the charger, switch the AC circuit breaker on. The message “Starting” will appear and output
current will build up gradually due to the “walk-in” or “soft-start” characteristic of the equipment.
During normal ramping LVA and RECTF alarm messages may appear and the alarm LED may flash.
4.
At the charger, switch the DC breaker on.
•
Battery string connected - The filter capacitors connected across the DC output will charge. The
2-line display on the front panel should read the battery voltage. Note: The inrush current may
trip the DC breaker. If so, again close the breaker.
•
No battery string connected - The capacitors will become charged when the AC breaker is closed
in step 4. Both current and voltage will then build up gradually, provided some load is connected.
TURNING OFF A COMMISSIONED CHARGER
4.2
1.
At the charger, open the AC circuit breaker on the front panel. While the output voltage and current
are decreasing, an AC Fail alarm message may appear and the alarm LED may flash.
2.
Open the DC circuit breaker.
3.
If the charger is to be serviced, open the front panel and press the capacitor discharge button for 60
seconds.
SETTING UP AND OPERATING A CHARGER
4.3
Set up and operate the charger using the 2-line alphanumeric display and the 4-button keypad on the front
panel. A series of menus provides access to charger status, active alarms, and setup parameter values.
Menus are shown in Figures 4-1 through 4-4.
IMPORTANT:
Press the keypad with your finger. Pressing with a sharp or pointed tool will damage the
switch overlay and can damage the switch itself.
Note:
The charger can be set up without AC power being applied if a battery string is connected. The
keypad and controller board are powered whenever a battery string is connected to the charger.
The 4-Button Keypad
The four buttons on the keypad are labeled UP, DN (Down), SEL (Select), and ESC (Escape).
•
UP or DN is pressed to move vertically through a menu. Also, parameter values (e.g. float set point,
low voltage alarm set point, alarm enable/disable) are set using these buttons.
