Micro
ARE-M Series 24V Chargers, Single Phase
Commissioning
PM990-1070-24, Issue 12
3-2
•
Battery String Connected to Charger – The string will power the charger controller if there is at least a
minimal battery charge. The 2-line display, keypad, and Alarm LED will be active. The setup can be
edited at the charger front panel without applying AC power to the charger.
•
No Battery String Connected – When AC power is applied to the charger, the controller will load a
default charger setup. You may then use the front panel to change many of the default parameter values
to accommodate the application.
7.
Set the AC and DC breakers on the charger front panel to off.
8.
Finally, perform the steps in Section 3.2 Commissioning Procedure.
COMMISSIONING PROCEDURE
3.2
This procedure assumes a newly installed system that includes a connected battery string and load. The voltages
and currents shown in the screens in this section are examples. They can vary with the charger model, charger
setup, connected load, and other factors.
1.
Check that the AC and DC circuit breakers on the charger front panel are switched to
off
.
2.
Check that the circuit breaker in the user’s AC electrical service panel is switched
off
.
3.
Check that:
•
The AC input cable is connected to the correct terminals and that connections are tight
•
DC load and battery cables are correctly connected and that connections are tight; check polarity as well
•
Alarm wiring is correct and tight, and that user-supplied alarm annunciators function
•
The charger chassis is correctly grounded
4.
Switch the DC output breaker on the charger front panel to on.
•
Battery string connected to charger – The filter capacitors
connected across the DC output will be charged by the string.
The 2-line display on the front panel should show the battery
voltage and current.
Note: The inrush current may trip the DC breaker. If so,
close the breaker.
The green AC input ON/OFF LED should be off. The red Alarm LED may be lit since all loads are
disconnected, a low current alarm condition and the AC power is off. The low voltage alarm may be
activated. The factory-installed or user-edited setup will specify the low current alarm value.
•
No battery string connected – The 2-line display will not be active. The capacitors will charge when the
AC input breaker is closed in step 6. Both the output current and voltage will build up gradually,
provided some load is connected.
5.
At the user’s AC electrical service panel, switch the AC circuit breaker On to power the charger.
6.
At the charger, switch the AC input breaker
on
. The DC output current will build up gradually due to the
“walk-in” or “soft-start” characteristic of the equipment. The green AC on/off LED should be
on
.
The 2-line display will show the Home screen. If an alarm is present, the display will indicate an alarm on
the Home screen; pressing the down button will indicate the alarms. The red Alarm LED will be lit if an
alarm condition exits. See step 4 for sample displays.
26.4VDC 0.0ADC
FLOAT
ACTIVE ALARMS
LCA
