Micro
ARE-M Series 24V Chargers, Single Phase
Installation
PM990-1070-24, Issue 12
2-12
2.4.6
Connecting Alarm Annunciation
Connect user-supplied alarm annunciators to terminal block TB1 on the Interface Board. Refer to Section
1.3 Specifications for alarm relay specifications and for recommended wire size.
As shown by the detail on this page and Figures 2-6 and 2-7, each relay has three connections: common,
normally open, and normally closed. The normally open (NO) and normally closed (NC) labels are for an
un-powered charger.
ALARM STATE
NORMAL CONDITION
ALARM CONDITION
LVA
De-Energized
Energized
HVA
De-Energized
Energized
HVSD
De-Energized
Energized
NCA
Energized
De-Energized
GND-
De-Energized
Energized
GND+
De-Energized
Energized
RECT FAIL
De-Energized
Energized
AC FAIL
Energized
De-Energized
SUMMARY
De-Energized
Energized
To connect alarm annunciators:
1.
Open the front panel. Loosen two quarter-turn captive screws at the right edge of the panel. Swing the
panel open.
2.
Locate the Interface Board on the left side of the internal panel. See Figures 2-6 and 2-7 for a view of
terminal block TB1 and connector labeling. TB1 consists of either 3 or 9 separate 3-terminal blocks.
3.
For each alarm output, strip the wire ends 1/4" to 5/16" and make the needed connections as shown in
Figure 2-7.
Note:
If desired, the plug can be pulled straight up and out of the terminal block for wiring. After wiring
the plug, insert the plug into the appropriate terminal block.
