LightAlarms
Tel: (888) 552-6467
Fax: (800) 316-4515
www.lightalarms.com
06/18 750.1783 Rev. G
9/12
LMIU 125/250/400W Mini Inverter
4. LIGHTING LOAD TESTING
The test is fully automatic. To maintain accurate data, these 2 conditions must be met prior to acquiring values from an all-good lighting load:
• The battery has to be at or near full power. The program will delay data capture for a minimum of 48 hours following any
discharge or reset.
• The charger will also wait to be in hysteresis mode (charger cycling on/off).
5. AUDIBLE ALARM (BUZZER)
This option can be activated or de-activated in the field. Refer to Figure 4.
To select the audible alarm option:
a. Remove all power sources to the board (AC and battery).
b. With long-nose pliers, pull on the shunt (little black box) until it is free from the pins.
c. Put the shunt back in place according to the option selection.
d. Reconnect AC power and the battery.
6. SERVICE ALARM OPTION (INDICATOR)
If installed, insert each wire of the Building Alarm Panel into separate terminals of the terminal
block marked “SERVICE ALARM”.
Alarm Panel shall provide a 24V signal. The charger board will indicate a fault by closing a
contact. Polarity is not specified.
7. LIGHTING CONTROL OVERRIDE
This feature is used with lighting loads equipped with low voltage dimming control. The dimming
function must be disabled during a power failure in order for the load to provide a 100% level of lighting.
The circuit consists of a single-pole dry-contact relay that is normally closed in stand-by operation. In emergency mode (power failure) the relay
contacts open and disconnect the dimming signal from the lighting load, allowing the load to operate at 100% light level.
INSTALLATION:
1. Locate the Lighting Control signal cable pair.
2. Cut, strip and extend one wire only, of the Lighting Control signal cable.
3.
Connect to the terminal block marked "LIGHTING CONTROL OVERRIDE" as shown in the wiring diagram below.
8. UNITS WITH NO AUTO-TEST
This equipment is not self-testing in conformance with the Life Safety Code, ANSI/NFPA 101.
IMPORTANT:
Must install a minimum lamp load equvivalent to 10% of the rated capacity of the unit.
Example: 12.5W/VA for a 125W inverter unit.
IMPORTANT:
Only one control signal can be handled by one LCO module. Multi control signals require one LCO per control
signal. Consult customer service if there is more than one Lighting Control signal to be overridden.
Shunt for
enable / disable
Buzzer
BUZZER
‘’Active’’
BUZZER
’’Silent’’
Shunt to
enable / disable
Buzzer
Figure 4
Master
Lighting
Control
Open(cut) one side of the
Light Control
Lighting Control Cable
Wires to be connected into the
“Lighting Control Overeride”
terminal block.
LCO
Mini Inverter
LCO Contact Specification:
Max. voltage: 60V
Max. current: 250mA
A.C. load output
from the Mini Inverter.
Figure 5
Lighting Fixtures
(Fluorescent or LED)
used for emergency
lighting.
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