O p e r a t i o n
11
Operation
I n s t a l l a t i o n G u i d e l i n e s
8
DC Wiring Options Continued
The ON/Off switch turns the TruePower Inverter to ON or to Off.
In the ON position, the Inverter /Fault LED light will illuminate Green. The TruePower begins inverting and provides modified sine wave power.
Some appliances and tools operate using larger electric motors, tubes or capacitors require an initial surge of power to start up. This extra surge of power required is often called the “peak load”, “starting load” or “surge capacity”. Once such a tool or appliance is started, it requires significantly less power to continue operation. This is commonly referred to the “continuous load” of power.
As a rule of thumb, most often the start up or surge load of the appliance or tool will determine if your TruePower inverter has the capability of running it. If the appliance or tool does not start the first try, attempt switching the appliance on every 2 seconds until
Figure 2) This wiring diagram displays a battery configuration for Medium- Duty applications. This configuration allows the inverter to only draw power from the auxiliary battery and keeps the vehicle start battery from being drawn upon.
*For an ABYC
TruePower
POS | NEG |
to ground
deep cycle auxiliary battery | boat/vehiclebattery |
*fuse |
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| isolator |
from alternator or charger
the appliance turns on. If the appliance does not start after the 5th or 6th attempt, it may require a larger surge than your inverter provides.
LED Indicators:
The two indicator lights on the front panel of the inverter illustrate the operating status of the TruePower Inverter. See table 4 below.
Status of Indicator Lights Table
Light | Color | Status | Result |
Power | Green | When the TruePower unit is on, | Can run your appliances through the |
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| the Inverter light illuminates. | Inverter from the battery. |
Fault | Red | The Fault light illuminates | Can not run appliances as the AC output |
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| whenever there is a battery | is disabled in the inverter mode. Clear |
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| the fault condition. Reset the unit by | |
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| excess of 15volts +/- 1volt), a | turning the ON/Off switch to Off and then |
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| low battery protection indicator | back to ON. |
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| (below 10volts |
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| output overload condition |
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| The inverter is over a safe | The inverter may need to cool off for a |
To obtain sufficient battery capacity, you may need to use more than one battery. Two identical batteries can be connected + to + and – to – in a parallel system, doubling capacity. We recommend that you do not connect batteries from different manufacturers, or with different
Figure 3) Displays 2 x 12volt batteries connected |
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in a parallel system that doubles the capacity |
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and maintains the 12v voltage requirement of |
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your inverter. This battery bank requires a |
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battery charging system. |
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If you are using different batteries, or need to use more that two batteries, we recommend that you set up two separate battery banks and use them alternately. Battery selector switches are available from Marine and RV Dealers which allow the user to select between two banks of batteries, or use both in parallel, or disconnect both banks from the load. Please see figure 4 below.
from alternator or charger
TruePower |
| isolator |
POS | NEG |
operating temperature. | period. Reduce load, duration of use if |
| you have been using for a longer period |
| of time. If it continues to be a problem, |
| you may need to properly size your |
| inverter to your application. Call our 1- |
| 800 Service line for additional help or |
| service if problem persists. |
battery selector switch | *fuse |
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Figure 4) Recommended Battery |
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Configuration for |
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Applications |
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| *fuse |
bank #1bank #2
vehicle battery
to ground
