ABB EMIU 400W User manual

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EMIU 400W - 4 Option Mini Inverter
i
IMPORTANT SAFEGUARDS
When using electrical equipment, basic safety precautions should always be followed, including the following:
READ THIS MANUAL AND FOLLOW ALL SAFETY INSTRUC TIONS
THOROUGHLY BEFORE OPERATING THE EMIU INVERTER SYSTEM
SAVE THESE INSTRUCTIONS
1. Install in accordance with the National Electrical Code and local regulations.
2. The EMIU contains
potentially hazardous voltages. Installation, maintenance and service work should be performed by qualified
and trained personnel.
3. Units to be
installed only as per configuration described in this instruction manual.
4. Electricians and end-users need to ensure product system compatibility before final installation.
5. The AC voltage rating of this equipment is specified on the product label. Do not connect
the EMIU equipment to any other voltage.
6. All unused wires must be capped to prevent shorting.
7. The EMIU should be mounted securely and in locations and at heights where it will not be readily subjected to tampering by
unauthorized
personnel.
8. The use of accessory equipment and replacement parts not recommended by manufacturer may cause an unsafe condition and will
void the
warranty.
9. Do not mount near gas or electric heaters.
10. Do not let power supply cords touch hot surfaces.
11. Do not use this equipment for other than its intended
use.
12. DO NOT USE OUTDOORS.
13. The EMIU uses sealed valve regulated lead acid batteries. Batteries can be punctured if not handled properly, therefore use caution
when servicing batteries. In the event battery acid comes in contact with eyes or skin, flush with fresh water and consult a physician
immediately.
NOTE: At 120Vac, unit is rated at power factor 0.8. For loads having a power factor below 0.8, unit capacity needs to be derated.
At 277Vac, unit is rated at 0.9 power factor. For loads having a power factor below 0.9, unit capacity needs to be derated.
All ABB inverter products receive 100% quality inspection before shipment to ensure proper and satisfactory operation.
When operated under normal conditions, ABB inverter products will provide years of dependable service. This unit is backed by a 3-7
year warranty. The unit is covered by a complete 3-year warranty against defects in material or workmanship, and a 7-year pro-rata
battery warranty.
BEFORE CONTACTING TECHNICAL SUPPORT MAKE SURE TO FOLLOW ALL STEPS IN SEQUENCE AND REFER TO
THE TROUBLESHOOTING GUIDE INCLUDED IN THIS MANUAL.
MODEL NUMBER AC SPECS EMERGENCY POWER AVAILABLE FOR LOAD APPROX.
WEIGHT
90 MIN 2H 3H 4H
EMIU 400 - 4 option 120/277 VAC, 60Hz 4.6 / 2.0 Amps 400W 300W 200W 150W 150lbs.
WARRANTY
EMIU 400W - 4 Option Mini Inverter
INTERRUPTIBLE EMERGENCY LIGHTING
UNIT INVERTER INSTRUCTION MANUAL
THIS UNIT CONTAINS A
RECHARGEABLE VALVE-REGULATED
LEAD ACID BATTERY. PLEASE
RECYCLE OR DISPOSE OF
PROPERLY.

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2/16
EMIU 400W - 4 Option Mini Inverter
WARNING: DE-ENERGIZE THE CIRCUIT BEFORE INSTALLATION OR MAINTENANCE.
WARNING: DO NOT ENERGIZE THE CIRCUIT UNTIL ALL STEPS HAVE BEEN SUCCESSFULLY COMPLETED.
WARNING:
ALWAYS TURN OFF THE INVERTER MODULE AND THE AC SUPPLY TO THE EQUIPMENT AND
DISCONNECT THE BATTERY BEFORE SERVICING. ONLY QUALIFIED SERVICE TECHNICIANS
SHOULD SERVICE THIS EQUIPMENT. THE USE OF PARTS SUPPLIED BY OTHER THAN THE
MANUFACTURER MAY RESULT IN AN UNSAFE CONDITION OR EQUIPMENT FAILURE AND WILL
VOID THE WARRANTY.
WARNING: DO NOT CONNECT THE BATTERY(IES) UNTIL YOU ARE PREPARED TO START-UP THE UNIT
PERMANENTLY. CONNECTING THE BATTERIES WITH THE UNIT OFF MAY DRAIN THE BATTERIES
TO THE POINT THAT YOU WILL NOT BE ABLE TO START-UP THE UNIT.
WARNING:
FAILURE TO CONNECT THE BATTERIES PROPERLY MAY RESULT IN EQUIPMENT FAILURE OR
AN UNSAFE CONDITION AND WILL VOID THE WARRANTY. A SMALL SPARK MAY OCCUR WHEN
CONNECTING TO THE BATTERY WIRES. THIS IS NORMAL AND IS CAUSED BY LARGE
CAPACITORS CONTAINED IN THE MINI INVERTER BEING CHARGED.
CAUTION: BATTERIES ARE SHIPPED SEPARATELY. PLACE THEM IN A LOCATION AWAY FROM THE WORK
AREA TO AVOID DAMAGE UNTIL THEY ARE TO BE INSTALLED.
CAUTION:
THIS UNIT PROVIDES MORE THAN ONE POWER SUPPLY OUTPUT SOURCE. TO REDUCE THE
RIS K OF ELECTRICAL SHOCK WHEN SERVICING, DISCONNECT BOTH NORMAL AND
EMERGENCY SOURCES BY TURNING OFF THE A.C. BRANCH CIRCUIT AND BY DISCONNECTING
THE BATTERY.
CAUTION: ONLY ONE VOLTAGE IS ALLOWED (120V OR 277V). CONNECTION TO MORE THAN ONE VOLTAGE
MAY RESULT IN EQUIPMENT FAILURE AND VOID THE WARRANTY.
CAUTION:
THE MINI INVERTER HAS A SELF-TEST FEATURE AND CAN ENTER IN SELF-TEST MODE (MONTHLY,
BIANNUAL OR ANNUAL) AT ANY TIME. WHEN THIS OCCURS, POWER WILL BE AVAILABLE AT THE
OUTPUT OF THE MINI INVERTER, EVEN IF THE LATTER WAS CONFIGURED FOR NORMALLY-OFF
OPERATION. ALWAYS TURN OFF THE INVERTER MODULE INSIDE THE MINI INVERTER BEFORE
WORKING WITH THE WIRING SYSTEM OF THE EMERGENCY LIGHTING SYSTEM.
IMPORTANT: FOLLOW THE APPROPRIATE WIRING DIAGRAMS. DO NOT CONNECT THE “INPUT POWER”
NEUTRAL TO THE “LOAD” NEUTRAL. FAILURE TO COMPLY WITH THIS DIRECTIVE MAY RESULT
IN EQUIPMENT FAILURE AND VOID THE WARRANTY.
IMPORTANT: FOR NORMALLY OFF LOAD: REMOVE THE JUMPER WIRE BEFORE WIRING THE UNIT.
REFER TO THE WIRING DIAGRAMS.
IMPORTANT:
ALL 0-10V LIGHTING CONTROL SIGNAL SHOULD BE RUN AS CLASS 2 (LOW VOLTAGE) WIRING.
NEVER RUN LINE VOLTAGE AND LOW VOLTAGE WIRING IN THE SAME CONDUIT AND PROVIDE
SUFFICIENT SEPARATION IN RACEWAY INSTALLATIONS. RUNNING THE 0-10 V SIGNAL AS
CLASS 1 (LINE VOLTAGE) WIRING INTRODUCES SOME CONCERNS, INCLUDING NOISE/
INTERFERENCE CAUSED BY COUPLING BETWEEN THE LINE VOLTAGE AND LOW-VOLTAGE
WIRES. THIS NOISE / INTERFERENCE CAN CAUSE A VOLTAGE FLUCTUATION ON THE 0-10 V
WIRES WHICH CAN CREATE A DIFFERENCE BETWEEN THE LIGHT LEVEL REQUESTED BY THE
CONTROL AND THE LIGHT LEVEL SIGNAL BEING RECEIVED BY THE BALLAST / DRIVER.

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3/16
EMIU 400W - 4 Option Mini Inverter
INSTALLATION
a. Remove the front cover of the Mini Inverter by removing the two screws at the top of the cover.
b. Extend the unswitched, properly-rated voltage AC supply and remote fixture wires to the installation area.
c. Orient cabinet to ensure clearance is 3.5 inches on either side of the Mini Inverter and 42 inches on the front. No clearance is
required on the bottom of the unit. For units equipped with optional wireless Nexus, a clearance of 6 inches is required on top to allow
for the protruding antenna. For units without wireless Nexus, no clearance is required on the top.
d. Use keyhole slots at the rear of the unit and mount the Mini Inverter securely to the wall.
e. Connect the conduit containing the AC supply and remote fixture leads to the Mini Inverter. Use the provided knock-outs on the side
of the Mini Inverter for connecting the incoming wires.
f. Install the batteries at this time, but do not connect the battery leads until other wiring is completed.
STEP 1: MOUNTING THE MINI INVERTER TO WALL (SEE FIGURE 1)
WARNING:
THE MINI INVERTER MUST BE MOUNTED SECURELY USING A 1/4” (MIN) SCREW AND FLAT WASHER
FOR EVERY KEYHOLE. THE MOUNTING SURFACE MUST ALSO BE SUFFICIENTLY REINFORCED TO
ACCOMODATE THE WEIGHT LISTED (SEE PAGE 1). FAILURE TO SECURE THE UNIT SUFFICIENTLY
CAN DAMAGE THE EQUIPMENT AND/OR CAUSE SERIOUS INJURY.
Unswitched input
TB1
FIGURE 1
Electronic
cabinet
Internal components
removed for clarity
of assembly.
Switched input
Output
CAUTION: CABINET IS HEAVY AND AWKWARD TO LIFT. MAKE PROPER PROVISIONS TO ENSURE SAFETY OF
INSTALLERS.
Load voltage selector

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EMIU 400W - 4 Option Mini Inverter
a. Mini Inverter with option -4 can control four individual circuits (see figure 2).
b. Unit can be configured for either 120V in // 120V out or 277V in // 277V out.
c. Power applied to the UNSWITCHED INPUT charges the batteries.
d. The four SWITCHED INPUTs can each be configured to operate Normally-On, Normally-Off or Switched loads.
e. Power supplied to the switched inputs must be fed from the same branch circuit as the unswitched input (see figure 2).
f. Unit is shipped from factory pre-set for 120V in // 120V out and configured for Normally-On load operation (see figure 2). This
configuration can be changed to fulfill customer's application.
g. In Normal AC mode, the load connected at the output is powered by the power applied to the SWITCHED INPUT.
h. In Emergency mode, the load is powered by the battery through the inverter. The inverter converts the battery DC power to AC
power.
a. Output voltage of the Mini Inverter with option 4 can be configured for either 120VAC or 277VAC.
b. Identify the terminal block TB1 located on the right hand side of the cabinet.
c. Position of the red wire determines the voltage available at the output of the Mini Inverter.
d. When the red wire is connected at the left terminal of TB1, the output voltage available will be 120VAC.
e. When the red wire is connected on the right terminal of TB1, the output voltage available will be 277VAC.
f. Identify the voltage rating of all the loads to be powered by the Mini Inverter.
g. If the voltage rating of the loads is 120VAC, connect the red wire to the left terminal of TB1.
h. If the voltage rating of the loads is 277VAC, connect the red wire to the right terminal of TB1.
a. Connect the Ground wire to the Ground Bus Bar.
b. Identify the terminal block for UNSWITCHED INPUT (figures 6, 7, 8 or 9).
c. Connect the NEUTRAL wire to the NEUTRAL position of the UNSWITCHED INPUT terminal block.
d. For 120V supply, connect the AC Line wire to the 120V position of the UNSWITCHED INPUT terminal block. For 277V supply,
connect the AC Line wire to the 277V position of the UNSWITCHED INPUT terminal block.
ELECTRICAL SINGLE LINE DIAGRAM FOR EMIU 400W WITH 4 CIRCUITS (-4 OPTION)
STEP 2: CONFIGURATION OF OUTPUT VOLTAGE (SEE FIGURE 2 AND 3)
STEP 3: WIRING TO UNSWITCHED INPUT
WARNING: PRIOR TO MAKING ANY WIRING CONNECTIONS TO THE MINI INVERTER, MAKE SURE THE BRANCH
CIRCUIT BREAKER FEEDING THE UNIT IS TURNED OFF AT THE SERVICE PANEL.
FIGURE 2
Circuit #1: Normally-ON
Circuit #2: Normally-OFF
Circuit #3 & 4: Switched
Normal Utility Panel 120V
Neutral
Ground
Neutral(Wht) CHARGER
BATTERY
24VDC
INVERTER
Circuit #4
120VAC(BLK)
277VAC(ORG)
SWITCHED INPUT
UNSWITCHED
INPUT
OUTPUT
HOT
NEU
Circuit #3
Circuit #2
Circuit #1
HOT
NEU
HOT
NEU
HOT
NEU
120VAC(BLK)
Neutral(Wht)
Neutral(Wht)
120V(BLK)
277V(ORG)
F4
F3
F2
F1
Mini Inverter comes pre-wired
for 120V. For 277V connections
remove red wire from
120V terminal and wire
to 277V terminal.
Transformer
Configuration:120Vin//120Vout
Orange
Black
Red
TO OBTAIN
120Vac OUTPUT
CONNECT RED WIRE
POSITION TO OBTAIN
TO OBTAIN
277Vac OUTPUT
Orange
Black
Red
FIGURE 3
TB1
TB1
CORRESPONDING OUTPUT VOLTAGE
TO APPROPRIATE
3
4

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EMIU 400W - 4 Option Mini Inverter
The Mini Inverter model with -4 option can be configured for various modes of operation as described below.
a. Normally-On Operation (Refer to Figure 6 for wiring details) - Fixtures remain illuminated in normal AC and emergency modes.
b. Normally-Off Operation (Refer to Figure 7 for wiring details) - Fixtures illuminated only upon loss of utility AC power.
c. Switched Load Operation (Refer to Figure 8 for wiring details) - Fixtures can be externally controlled and will illuminate upon
loss of utility AC power regardless of the state of the external control device (switch, motion sensor, dimmer, etc.).
d. Combination of Normally-On, Normally-Off and Switched Load Operation (Refer to Figure 9 for wiring details - Each circuit in
the Mini Inverter with the -4 option can be configured in one of the previously described modes of operation.
Refer to the applicable wiring diagram in figures 6, 7, 8 and 9 to connect the utility AC power and external control devices (where
applicable). Perform all wiring procedures in accordance with applicable codes. The unit is shipped configured to operate in Normally-On
mode by using an assembled jumper. This jumper can be removed to configure the SWITCHED INPUTS as desired.
Do not connect the load to the Mini Inverter at this point of time.
a. Position the batteries in the unit.
b. Refer to figure 4. Connect the RED wire to the positive (+) post of the battery. Connect the BLUE wire to the negative (-) post of
the battery. Tighten all bolts to a recommended torque of 78 lbf-in ± 4 lbf-in.
STEP 4: WIRING TO SWITCHED INPUT
CAUTION: POWER SUPPLIED TO THE SWITCHED INPUTS MUST BE FED FROM THE SAME BRANCH CIRCUIT AS
THE UNSWITCHED INPUT.
CAUTION:
ALL FOUR SWITCHED INPUTS HAVE BEEN JUMPERED AND IS PRESET FOR 120VAC TO OPERATE
NORMALLY ON LOADS. IF THE UNIT IS TO BE WIRED FOR 277VAC, REMOVE THE JUMPER WIRE FROM
THE 120VAC INPUT POWER TERMINAL AND REINSTALL THE JUMPER WIRE INTO THE 277VAC INPUT
POWER TERMINAL.
CAUTION:
IF CONNECTED TO 277V SWITCHED INPUT, USE A 277V RATED SWITCH. FAILURE TO USE THE PROPER
VOLTAGE SWITCH MAY RESULT IN SWITCH FAILURE, A SHOCK HAZARD, AN UNSAFE
CONDITION AND/OR EQUIPMENT FAILURE.
STEP 5: CONNECT BATTERIES (SEE FIGURE 4)
FIGURE 4
RED(+)
BLUE(-)
2 BLACK WIRES
B+
B-
B+
B-

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EMIU 400W - 4 Option Mini Inverter
a. Confirm load is not connected.
b. Follow start-up procedure in Step 7.
a. Turn on switch located on right hand side of inverter module in the electronic cabinet. Emergency lights and indicator will not
illuminate.
b. Energize AC mains supply. Status Indicator on the left side of electronic cabinet will illuminate. For more information about the Status
Indicator, see information section FEATURES AND OPTIONS.
c. If status LED Indicator is not green, reset the system. (Refer to “SYSTEM RESET” on page 7).
d. Manually test unit by pressing test switch for 1 second. (Refer to “MANUAL TEST” on the page 7).
e. Measure and record voltage at the output of circuits 1, 2, 3 and 4.
f. Confirm measured output voltages match voltage rating of the loads.
g. Following the 1 minute test, simulate a power outage by turning off the AC mains circuit breaker feeding the Mini Inverter.
h. Measure and record voltages at the output of circuits 1, 2, 3 and 4.
i. Confirm measured output voltages match voltage rating of the loads. If voltages do not match, check the wiring or call Technical
Support.
a. Turn off switch located on right-hand side of inverter module.
b. Turn off AC mains circuit breaker in the service panel feeding the Mini Inverter.
a. Before proceeding, confirm all circuits are de-energized.
b. Upon confirmation that measured output voltage of Mini Inverter matches voltage rating of loads, wire load.
c. Identify output terminal block (refer to figures 6, 7, 8 and 9).
d. The neutrals of circuit# 1, circuit# 2, circuit# 3 and circuit# 4 are shorted.
e. Connect Ground wires from loads to Ground Bus Bar.
f. Connect neutral wires from loads to neutral terminals of output terminal block.
g. The neutrals of emergency fixtures must be wired to output terminal block.
h. Do not connect the neutral wire of emergency fixtures to neutral wire of normal non-emergency lighting.
i. Connect hot wires from emergency lighting loads to the "HOT" terminals of OUTPUT terminal block.
a. With loads connected, follow the start-up procedure in Step 7.
b. Normally-ON fixtures must be ON, Normally-OFF must be OFF. Switched Emergency Fixtures must only be ON when switch is in ON
position.
c. Re-install the cover of the Mini Inverter using original hardware.
STEP 6: START-UP WITH NO LOAD CONNECTED.
STEP 7: START-UP PROCEDURE
STEP 8: SHUT DOWN PROCEDURE.
STEP 9: CONNECT THE LOAD.
STEP 10: START-UP WITH LOAD CONNECTED.

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EMIU 400W - 4 Option Mini Inverter
NEXUS® (OPTION)
Wired:
a. Route NEXUS® data cables into unit and strip one inch (25mm) of the
cable insulation. Two cables are identical and contain 2 wires of
different colors: color A and color B.
b. Connect both color “A” wires to the same pole on the terminal block.
Connect both color “B” wires to the same pole on the terminal block.
The result must be 2 wires of the same color connected to each pole
on the terminal block.
See Figure 5.
c. Live voltage cabling and unsheathed low voltage data cabling must
be a minimum of one inch (25mm) apart.
Wireless:
NO WIRING IS REQUIRED FOR THE NEXUS® WIRELESS VERSIONS.
See Nexus® addendums: 750.1532 and 750.1641 for more information and antenna installation.
See Nexus®Pro addendums: 750.1641 and 750.2060 for antenna installation and important information before powering up unit.
MANUAL TEST
Press test switch for 1 second to initiate a 1 minute manual test. Status Indicator will start flashing green. All normally-ON lamps
(switched or unswitched) will turn ON. All normally-off lamps shall also be ON. After 1 minute test lamps will revert to their normal
operating mode and unit will revert to recharge mode. Status indicator will be steady ON green if no fault has been detected. If a fault is
detected, refer to the FEATURES AND OPTIONS instructions on pages 12 to 14 for diagnostics and auto test features.
Allow the batteries to charge for a minimum of 48 hours after installation or power failure before conducting a 90-minute discharge test.
The Life Safety Code and the Authorities having Jurisdiction require an annual 90-minute discharge test.
SYSTEM RESET
Resetting the system:
Depending on the sequence of installation, some units may require a system reset. To reset, press and hold test switch on left
side of unit for 6 seconds.
NS
MAINTENANCE
BATTERY:
The batteries supplied in this equipment are high quality maintenance-free Valve Regulated Lead Acid design.
When installed in an ambient temperature of 25° C (77° F), their life expectancy is 8 to 10 years.
When batteries will no longer operate the load for 90 minutes, they must be replaced. Replace only with manufacturer supplied parts.
Properly dispose of or recycle the Lead-Acid battery.
1 inch Wire
Wire
color A
color B
25mm
Figure 5

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EMIU 400W - 4 Option Mini Inverter
NORMALLY-ON OPERATION
All four(4) circuits configured to operate in Normally-On mode.
Important:
For 277 V output: red wire must
be removed from 120 V side of
terminal block and wired to 277 V
side of terminal block.
Orange
Black
Red
TO OBTAIN
120Vac OUTPUT
CONNECT RED WIRE TO APPROPRIATE
POSITION TO OBTAIN
TO OBTAIN
277Vac OUTPUT
Orange
Black
Red
CORRESPONDING OUTPUT VOLTAGE
TB1
Switched input
Utility
Neutral
Ground
NEUTRAL
120Vac
277Vac
UNSWITCHED
INPUT
OUTPUT(LOAD)
SELECT THE CORRECT VOLTAGE AT TB1
CIRCUIT #3
HOT
SWITCHED (CONTROLLED)
NOT
LINE
CIRCUIT #4
CIRCUIT #2
CIRCUIT #1
HOT
HOT
HOT
NOT
LINE
NOT
LINE
NOT
LINE
Neutral Hot
CIRCUIT
#4 #3 #2 #1
USED
USED
USED USED
CIRCUIT CIRCUIT CIRCUIT
Neutral Hot
Neutral Hot
Neutral Hot
CIRCUIT #4 CIRCUIT #3 CIRCUIT #2 CIRCUIT #1
Neutral
Hot(120V)
TB1 LOCATION
input
FIGURE 6
NOTE: WIRING DIAGRAMS HAVE BEEN
ACTUAL POSITION OF COMPONENTS
Configuration shown: 120Vin // 120Vout.
For 277Vin // 277Vout, connect utility hot wire to 277V position
{
Unswitched
{
UTILITY
UNSWITCHED
SWITCHED
INPUT
OUTPUT
INPUT
Blue
Unit shipped with assembled jumper in place.
SIMPLIFIED FOR CLARITY.
MAY VARY.
INPUT
NEUTRAL
NEUTRAL
NEUTRAL
NEUTRAL

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EMIU 400W - 4 Option Mini Inverter
NORMALLY-OFF OPERATION
All four(4) circuits configured to operate in Normally-Off mode.
Important:
For 277 V output: red wire
must be removed from 120 V
side of the terminal block and
wired to 277 V side of
terminal block.
Orange
Black
Red
TO OBTAIN
120Vac OUTPUT
CONNECT RED WIRE TO APPROPRIATE
POSITION TO OBTAIN
TO OBTAIN
277Vac OUTPUT
Orange
Black
Red
CORRESPONDING OUTPUT VOLTAGE
TB1
Utility
Neutral
Ground
NEUTRAL
120Vac
277Vac
UNSWITCHED
INPUT
OUTPUT(LOAD)
SELECT THE CORRECT VOLTAGE AT TB1
CIRCUIT #3
HOT
SWITCHED (CONTROLLED)
NOT
LINE
CIRCUIT #4
CIRCUIT #2
CIRCUIT #1
HOT
HOT
HOT
NOT
LINE
NOT
LINE
NOT
LINE
Neutral Hot
CIRCUIT
#4 #3 #2 #1
USED
USED
USED
USED
CIRCUIT CIRCUIT CIRCUIT
Neutral Hot
Neutral Hot
Neutral Hot
CIRCUIT #4 CIRCUIT #3 CIRCUIT #2 CIRCUIT #1
Neutral
Hot(120V)
TB1 LOCATION
input
UNSWITCHED
SWITCHED
INPUT
OUTPUT
INPUT
FIGURE 7
NOTE: WIRING DIAGRAMS HAVE BEEN SIMPLIFIED FOR CLARITY.
ACTUAL POSITION OF COMPONENTS MAY VARY.
Configuration shown: 120Vin // 120Vout.
For 277Vin // 277Vout, connect utility hot wire to 277V position
{
{
UTILITY
Unswitched
INPUT
NEUTRAL
NEUTRAL NEUTRAL
NEUTRAL

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EMIU 400W - 4 Option Mini Inverter
SWITCHED LOAD OPERATION
All four(4) circuits controlled by switches.
Important:
For 277 V output: red wire
must be removed from 120 V
side of the terminal block and
wired to 277 V side of the
terminal block.
Orange
Black
Red
TO OBTAIN
120Vac OUTPUT
CONNECT RED WIRE TO APPROPRIATE
POSITION TO OBTAIN
TO OBTAIN
277Vac OUTPUT
Orange
Black
Red
CORRESPONDING OUTPUT VOLTAGE
TB1
Utility
Neutral
Ground
NEUTRAL
120Vac
277Vac
UNSWITCHED
INPUT
OUTPUT(LOAD)
SELECT THE CORRECT VOLTAGE AT TB1
CIRCUIT #3
HOT
SWITCHED (CONTROLLED)
NOT
LINE
CIRCUIT #4
CIRCUIT #2
CIRCUIT #1
HOT
HOT
HOT
NOT
LINE
NOT
LINE
NOT
LINE
Neutral Hot
CIRCUIT
#4 #3 #2 #1
USED USED
USED
USED
CIRCUIT CIRCUIT CIRCUIT
Neutral Hot
Neutral Hot
Neutral Hot
CIRCUIT #4 CIRCUIT #3 CIRCUIT #2 CIRCUIT #1
Neutral
Hot(120V)
TB1 LOCATION
input
UNSWITCHED
SWITCHED
INPUT
OUTPUT
INPUT
FIGURE 8
NOTE: WIRING DIAGRAMS HAVE BEEN SIMPLIFIED FOR CLARITY.
ACTUAL POSITION OF COMPONENTS MAY VARY.
Configuration shown: 120Vin // 120Vout.
For 277Vin // 277Vout, connect utility hot wire to 277V position
{
Hot
{
UTILITY
NEUTRAL
INPUT
NEUTRAL
NEUTRAL
NEUTRAL
CAP ALL
UNUSED
Typical
cable
Hot
Neutral
Ground
NEUTRAL
WIRES

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EMIU 400W - 4 Option Mini Inverter
COMBINATION OF NORMALLY-ON, NORMALLY-OFF AND SWITCHED LOAD OPERATION
Utility
Neutral
Ground
input
Important:
For 277 V output: red wire
must be removed from120 V
side of the terminal block
and placed to 277 V side of
terminal block.
TB1 LOCATION
Orange
Black
Red
TO OBTAIN
120Vac OUTPUT
TO OBTAIN
277Vac OUTPUT
Orange
Black
Red
TB1
CONNECT RED WIRE TO APPROPRIATE
POSITION TO OBTAIN
CORRESPONDING OUTPUT VOLTAGE
NEUTRAL
120Vac
277Vac
UNSWITCHED
INPUT
OUTPUT(LOAD)
SELECT THE CORRECT VOLTAGE AT TB1
CIRCUIT #3
HOT
SWITCHED (CONTROLLED)
NOT
LINE
CIRCUIT #4
CIRCUIT #2
CIRCUIT #1
HOT
HOT
HOT
NOT
LINE
NOT
LINE
NOT
LINE
Neutral Hot
CIRCUIT
#4 #3 #2 #1
USED
USED
USED
USED
CIRCUIT CIRCUIT CIRCUIT
Neutral Hot
Neutral Hot
Neutral Hot
CIRCUIT #4 CIRCUIT #3 CIRCUIT #2 CIRCUIT #1
Neutral
Hot(120V)
UNSWITCHED
SWITCHED
INPUT
OUTPUT
INPUT
FIGURE 9
NOTE: WIRING DIAGRAMS HAVE BEEN SIMPLIFIED FOR CLARITY.
ACTUAL POSITION OF COMPONENTS MAY VARY.
Configuration shown: 120Vin // 120Vout.
For 277Vin // 277Vout, connect utility hot wire to 277V position
{
Circuit #1: Normally-ON
Circuit #2: Normally-OFF
Circuit #3 & 4: Switched
Hot
{
UTILITY
INPUT
NEUTRAL
NEUTRAL NEUTRAL
NEUTRAL
CAP ALL
UNUSED
Typical
cable
Hot
Neutral
Ground
NEUTRAL
WIRES

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EMIU 400W - 4 Option Mini Inverter
SYSTEM OPERATION
• The diagnostic/charger is a self-contained, fully automatic microcontroller-based system.
• When installation is complete, only the battery connection is needed. AC power need not be energized.
Unit goes directly into lockout mode and waits for AC power to be restored.
1. ALARM SILENCE / MANUAL TEST / SYSTEM INITIALIZATION
• Alarms are silenced by pushing the “TEST” switch less than one half second. Alarm can only be silenced after correcting the
fault or by re-initializing the system.
• Press the “TEST” switch for 1 second to initiate a 1 minute manual test
• System initialization is done by holding “TEST” switch for at least 6 seconds.
2. DIAGNOSTIC AND NEXUS® (OPTION)
If audible alarm is activated, any fault condition will produce an audible warning of an intermittent
beep: one second on, one second off.
See figure 10 for fault indicators.
a. BATTERY DISCONNECT / INVERTER FAILURE
Status indicator displays steady red LED if battery circuit is open or shorted, or if there is
an Inverter failure.
b. BATTERY FAILURE
1 red blink and a pause of 5 seconds: incorrect battery (e.g. 12V battery on a 6V system),
or battery has failed a timed or forced test (reached LVD level before the end of the test).
c. CHARGER FAILURE
2 red blinks and a pause of 4 seconds: charging current is not within limits corresponding
to charger command state.
d. LIGHTING LOAD CAPTURE SEQUENCE
Only initiated by a reset of system. Press “TEST” switch for at least 6 seconds. Reset
initializes the main counter. This re-initialization takes place to compensate for system
variations when the unit ages. Re-initialization is not allowed if there is a lighting load failure alarm. This is not applicable for units with
“No-Auto-Test plus No-Load-Detect” option.
e. SERVER FAILURE
The Nexus server (controller or PC) is no longer communicating with the RF unit’s modem. Confirm Nexus server is operating and check
whether other surrounding emergency lighting units are not powered. If surrounding emergency lighting units are powered “off”, the
surrounding emergency lighting units will prevent communication with the modem. Otherwise, reset the modem.
f. BLINK MODE
A “Blink mode” signal was sent from the Nexus server (controller or PC) to the emergency lighting unit. To stop the “Blink mode”, access
the Nexus server and execute a stop blink mode operation.
g. NOT COMMISSIONED
The unit is not registered in the Nexus server. Commission the unit. Auto-test will be disabled and the LED will show a steady green for
10 seconds and steady orange for 1 second.
To cancel a fault alarm display, reset unit after issue correction.
*Refer to Nexus® installation addendum for more details.ONS
3. AUTOMATIC UNIT TEST (30-DAY TEST)
Every 30 days, while in charging mode, the sequence generator will generate a command to energize the transfer on the emergency lighting
circuit for a variable test period depending on the yearly sequence.
• If the battery fails to complete the discharge test, the charger will display a battery failure and the test will abort.
• The 30-day automatic test sequence is reset every time the lighting load is turned on, including after a manual test.
FEATURES AND OPTIONS
IMPORTANT: Reset the system for each addition or change of lighting load. Press test switch for 6 seconds to reset the
system.
US (MIN)
NOTE:
AUTO-TESTING IS NOT PROVIDED IN SOME UNITS.
REFER TO FEATURE 9.
Monthly test 1
6 month test 30
12 month test 90
Figure 10

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EMIU 400W - 4 Option Mini Inverter
4. LIGHTING LOAD TESTING
The test is fully automatic. To ensure accurate data from a connected and functional lighting load:
• The battery must 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 must be in hysteresis mode (charger cycling on/off).
5. AUDIBLE ALARM (BUZZER)
Can be activated or de-activated in the field. Refer to Figure 11.
To select the audible alarm option:
a. Remove all power sources to the board (AC and battery).
b. Use long-nose pliers to remove the shunt (little black box) from the pins.
c. Replace the shunt back according to the option selection.
d. Reconnect AC power and the battery.
6. SERVICE ALARM CONTACT (OPTION)
If installed, insert each wire of the Building Alarm Panel into separate terminals of the terminal
block marked “SERVICE ALARM”.
Alarm Panel will 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 will be disabled during a power failure in order for the load to provide a 100% light level.
The Mini Inverter comes with four Lighting Control Override circuits. In standby mode, the Lighting Control Signal cables from the lighting fixtures
are connected through relay contacts to the Lighting Control Signal cables from the external Lighting Dimming Control panel. In emergency
mode (power failure) the contacts of each relay open and the dimming signal from the lighting load is disconnected, allowing the load to operate
at 100% light level.
INSTALLATION:
1. The figure below illustrates the wiring of the Mini Inverter with 0-10V dimmable fixtures and external 0-10V Lighting Dimming Control device.
IMPORTANT: A minimum lamp load equivalent to 10% of the rated capacity of the unit must be installed.
Example: 40W for a 400W inverter unit.
Shunt for
enable / disable
Buzzer
BUZZER
‘’Active’’
BUZZER
’’Silent’’
Shunt to
enable / disable
Buzzer
Figure 11
LCO #1
MINI INVERTER
A.C. OUTPUT
Figure 12
LCO #2
LCO #3
LCO #4
OUT 1
OUT 2
OUT 3
OUT 4
IN 1
IN 2
IN 3
IN 4
Lighting Fixture
AC Input
Output
0-10V Control voltage
0-10V Dimming Driver Lighting load
(Fluorescent, LED)
AC mains
Line
Neutral
0-10V
Lighting Dimming
Control
0-10V Lighting
Switched
Unswitched
Unswitched
Neutral
UTILITY {
inputs
input
Circuit #1
Inverter ON Dry
Form C contact
INVON1
COM1
NO1
NC1
Lighting Control
Override
Circuit #2
Circuit #3
Circuit #4
Control signal
line
0-10V Lighting
Control signal
Only one circuit is shown.
The same principle applies to all four circuits.

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EMIU 400W - 4 Option Mini Inverter
2. The terminal blocks for connecting the 0-10V dimming control wires are located on the left-hand side of the cabinet as illustrated in figure 13.
3. Connect the Lighting Control signal cables from the external Lighting Dimming Control panel to the terminal blocks identified by IN1, IN2, IN3
or IN4 in the Mini Inverter. Wiring is polarity sensitive. Observe the polarity of the cables to ensure proper installation. Purple is positive and
grey is negative.
4. Connect the Lighting Control signal cables from the lighting fixtures to the corresponding terminal blocks identified by OUT1, OUT2, OUT3 or
OUT4 in the Mini Inverter. Wiring is polarity sensitive. Observe the polarity of the cables (refer to figure 12). Purple is positive and grey is
negative.
Note: Only one Lighting Control Override circuit has been shown for clarity. The same principle applies to all four Lighting Control Override
circuits.
8. INVERTER-ON DRY CONTACT
The Mini-Inverter also comes with one set of INVERTER-ON Dry Form “C” contact.
The INVERTER-ON Dry Contact is identified as “INVON1” and its position is illustrated in Figure 12 and 13.
The INVERTER-ON Dry Form “C” contact changes position in emergency mode.
INVERTER-ON Dry Contact Specification:
Maximum voltage: 30 VDC
Maximum current: 2A
The Lighting Control Override board has one extra INVERTER-ON Dry Form “C” contact identified as “INVON2”. “INVON2” has the same
specifications as “INVON1” and can be used if needed.
9. UNITS WITH NO AUTO-TEST (OPTION)
This equipment is not self-testing in conformance with the Life Safety Code, ANSI/NFPA 101.
Figure 13
Terminal block location
for dimming control
Terminal block
for Dry form “C” contact

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EMIU 400W - 4 Option Mini Inverter
TROUBLESHOOTING GUIDE
STATUS
INDICATOR
(LED)
TROUBLESHOOTING GUIDE
SYMPTOMS PROBLEM CORRECTIVE ACTION
LED GREEN
ON Steady, not
flashing
Lamp load is on None, if unit is in normally on
mode. Unit is operating correctly.
Lamp load is off None, if unit is in normally off
mode. Unit is operating correctly.
Lamp load is OFF, but the
unit is in normally on mode Fuses burned out. Verify there is no short circuit in the load. Replace fuses.
-Lamp load is OFF (if
installation is normally OFF)
-Lamp load is ON (if
installation is normally ON)
Power at primary AC input +
battery discharged (at LVD) + no
reaction with test button.
- Remove primary AC input + disconnect
battery + wait minimum 10 seconds
- connect battery + connect primary AC input
=> unit will restart
- if unit did not restart, call technical support at 1-[phone].
LED flashing
GREEN/
ORANGE
Lamp load is ON None if unit is in normally on
mode +Nexus option.
Unit is operating correctly. Unit is not commissioned to the Nexus
system.
Lamp load is OFF None if unit is in normally off
mode +Nexus option.
Unit is operating correctly. Unit is not commissioned to the Nexus
system.
LED flashing
GREEN/OFF
Lamp load is ON None the unit is in test mode or is
sampling load. Unit is operating correctly.
Lamp load is OFF
Inverter switched OFF. Check the inverter ON/OFF switch => Turn it on.
Switch is located on the right side of the inverter module.
The output fuse is burnt Replace the fuses after verifying that there is no short circuit in the
load.
LED steady
OFF, not
flashing
Lamp load is ON No power at primary AC input + in
emergency mode Check position of breaker feeding the Mini Inverter in the breaker
panel. If breaker has tripped, check for overload or short circuit.
See “AC SPECS” on page 1.
Lamp load is OFF
No power at primary AC input +
emergency mode stop (battery
discharged)
-Lamp load is OFF (if
installation is normally
OFF)
-Lamp load is ON (if
installation is normally ON)
Power at primary AC input +
battery discharged (at LVD) + no
reaction with test button
- Remove primary AC input + disconnect
battery + wait minimum 10 seconds
- connect battery + connect primary AC input
=> the unit will restart
- if unit did not restart, call for technical support at 1-(888)-552-6467.

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EMIU 400W - 4 Option Mini Inverter
CONTACT CUSTOMER SERVICE FOR REPLACEMENT PARTS.
SERVICING MUST BE PERFORMED BY QUALIFIED PERSONNEL.
Consult Customer Service for current warranty information.
All information and specifications contained in these instructions are subject to change
due to engineer design, errors and omissions.
© 2021 ABB. All rights reserved.
LED RED
steady ON
Battery Disconnect Error No battery installed in unit Install battery following installation guide.
LED Flashing
RED 1 time
every 6 seconds
Battery Failure
Battery fails to complete manual
or monthly test. Replace batteries.
Battery fails to complete annual
test. Replace batteries.
Battery fail in charge. Replace batteries.
LED Flashing
RED 2 times
every 6 seconds
Charger Failure Charger not working. Reset unit (see page 7). If same error is displayed, replace charger
board.
LED Flashing
RED 3 times
every 6 seconds
Lamp Failure Loss of 10% or more of initial
lamp load. Replace the bad lamp and reset the unit.
-Lamp Failure
-No output voltage
Fuses are burned out. Verify there is no short circuit in load. Replace fuses.
Loose connection to terminal
block Verify that all wires are securely connected to terminal block.
LED AMBER
(ORANGE)
steady On
Network server down Nexus modem is not sending a
signal to Nexus server. See Nexus manual system.
LED flashing
between
AMBER/OFF
Wink mode Unit is in yellow blink mode. Stop wink mode by sending a message from Nexus server or reset
the unit (see page 12).
TROUBLESHOOTING GUIDE