Configuration (Continued)
EMS1012UL & EMS2012UL Models*
Select Battery
“Most Limiting” (#B2 & #B1 Up)
takes effect the moment any 120V AC load is applied; charger output falls gradually from full output at no
120V load passing through to no output at full load.
“Less Limiting” (#B2 UP & #B1 Down): :
EMS1012UL & EMS2012UL Models*
“Least Limiting” (#B2 Down & #B1 Up):
Charger’s load rating. Charger output falls gradual-
ly from full output at 66% of the Inverter/Charger’s load rating to about 40% of full output at full load.
“No Limiting” (#B2 & #B1 Down, factory set- |
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B4 |
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| B2 |
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ting): No |
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*Charger limiting function varies by model. On Models EMS1012UL and EMS2012UL, all settings are functional. On Model EMS1250UL, charger limiting is preset to “Most Limiting”; switches are
B3 | Select Equalize Battery Charge— |
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| Setting Procedure |
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B4 |
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| B1 | Reset |
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| OPTIONAL |
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| • Move to “Equalize” (DOWN) position for three seconds. | |||
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This DIP Switch is momentarily engaged to |
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| • Move to “Reset” (UP) position and leave it there. This is the | |||||
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| Equalize |
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begin the process of equalizing the charge |
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| factory default setting. |
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state of your battery’s cells by | CAUTION: Do not leave DIP switch #B3 in the down position after beginning process. Battery | ||||||||||||||||||||
This can extend the useful life of certain types of batteries; consult | charge equalization should only be performed in strict accordance with the battery manufacturer’s | ||||||||||||||||||||
with your battery’s manufacturer to determine if your batteries | instructions and specifications. |
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could benefit from this process. The charge equalization process is | Battery Charge | Switch Position |
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automatic; once started, it can only be stopped by removing the | Reset | Up (factory setting) |
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input power. |
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| Equalize |
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| Battery Charger | Switch Position |
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B4 | Set Battery Charging |
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| Low Charge Amp | Up (EMS1012UL & EMS2012UL factory setting) |
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Check specifications for your unit’s high- and |
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| High Charge Amp | Down (EMS1250UL factory setting) |
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| CAUTION: When switching to the High Charge Amp setting, the user must ensure that the amp | ||||
charging, your batteries will charge at maxi- |
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| hour capacity of their battery system exceeds the amperage of the High Charge Amp setting or | ||||
mum speed. When setting on low charging, |
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| the batteries may be damaged or degraded. | ||||
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you lengthen the life of your batteries (especially smaller ones).
Set Battery Charge Conserver (Load Sense)
In order to save battery power, the unit’s inverter automatically shuts off in the absence of any power demand from connected equip- ment (the electrical load). When the unit detects a load, it automatically turns its inverter function on. Users may choose the minimum load the Inverter/Charger will detect by adjusting the Battery Charge Conserver Control (see diagram). Using a small tool, turn the con- trol clockwise to lower the minimum load that will be detected, causing the inverter to turn on for smaller loads. When the control is turned fully clockwise, the inverter will operate even when there is no load. Turn the control counterclockwise to increase the minimum load that will be detected, causing the inverter to stay off until the new minimum load is reached.
MAX OFF (GREATER (LESSER
LOAD LOAD
ON) ON)
Note: the factory setting for the control is fully clockwise. However, based on the threshold load to which you’d like the inverter to respond, you should adjust the control counterclockwise to reduce its sensitivity until the inverter is active only when connected equipment or appliances are actually in use.
Connect Remote
All models feature an
Connect Battery Temperature Sensing
The battery temperature sensing function prolongs battery life by adjusting the charge level based on battery temperature. Connect the sensor cable (the cable, included with select models, has an RJ style connector on one end and a black sensor on the other) to the RJ style jack located on the side of the Inverter/Charger labeled “Remote Temp. Sense.” Affix the sensor to the side of your battery below the electrolyte level. To guard against false readings due to ambient temperature, place the sensor between batteries, if possible, or away from sources of extreme heat or cold. If the sensor cable is not used, the Inverter/Charger will charge according to its B4 Dip Switch setting. This function does not replace the Battery Charge Amps DIPSwitch B4 setting. Charge amps will remain in the vicinity of the level you have set with the B4 DIPSwitch.
Utilize Automatic Generator Starter
Select EMS models include an RJ type modular jack labeled “Generator Start.” Attach to vehicle generator
1 |
2 |
3 |
4 |
5 |
6 |
Pin Configuration
2 - Common
3 - N.C.
(Normally Closed)
4 - N.O.
(Normally Open)
Ignition Interlock Control function (Model EMS1250UL only): This function automatically disables (turns OFF) AC power output from the invert- er/charger when the vehicle’s ignition switch is placed in the “Engine Run” position. This function will satisfy local codes and requirements con- cerning video monitors or TVs that are located within a driver’s view by automatically turning them off when the engine is started. Using the
included interface cable,* connect the black lead to vehicle ground (battery negative). Connect the red lead to the “Engine Run” terminal of the vehicle's ignition switch. Then connect the interface cable's
* The interface cable has a
6E
