FUNCTIONAL TEST
Copyright
Trace Engineering Company, Inc.
5916 - 195th Street N. E.
Arlington, WA 98223
Telephone: 360/435-8826
Fax: 360/435-2229
www.traceengineering.com
SW Series Inverter/Charger
Part No. 2031-5
Rev. B: Sept 1, 1999
Page
31
FUNCTIONAL TEST
Once the AC and DC wiring have been installed and connected, take a moment to go back over all
connections and make sure they are secure and has been installed properly. Ensure that there is no AC or
DC power provided to the inverter/charger and that all AC loads are disconnected from the output of the
inverter.
The below steps will complete a functional test of the inverter. If any area fails, figure out why before
proceeding. The TROUBLESHOOTING GUIDE section, starting on page 112, will hopefully help solve
problems you may encounter.
1. After ensuring the correct polarity, apply battery (DC) power to the inverter by turning on the battery
bank DC disconnect or connecting the proper fuse inline to the battery to complete the battery circuit.
The inverter will power up, the LCD display will be on, but the inverter will remain in the OFF mode.
2. Press the red ON/OFF MENU switch twice (SEARCH then ON) to turn the inverter on.
Monitor your INVERTING LED (Yellow) to ensure what mode you are in:
•
Off – The Inverter/Charger is off. This is the default position of the inverter upon power-up. No
inverter or pass-thru power will be applied to the AC loads.
•
One blink/sec – The Inverter/Charger is in the Search mode and is looking for an AC load greater
than the SEARCH WATTS setting (default = 16 watts).
•
On – Indicates the Inverter/Charger is on. The inverter will produce a low audible “buzz” is able to
provide power to the AC loads.
If the inverter does not produce an low audible “buzz” or come on, check all connections. Check the
inverter’s DC voltage on the positive (+) and negative (–) terminals. If the DC voltage is low, the
battery bank needs to be charged externally. Charge the battery bank and restart the functional test.
3. With the inverter ON, check the AC voltage on the AC output terminal of the inverter and ensure you
get the correct AC voltage for your particular unit. After confirming the correct AC voltage, connect
your AC output breaker and place a load on the inverter (plug in a light or other load to an outlet the
inverter is powering), and make sure it works.
4. Check your battery charger. To charge your batteries, provide AC power - by plugging in a power
cord or turning on the AC input breaker - to the AC HOT IN 1 and NEUTRAL IN 1 terminals on the
inverter. The AC1 IN GOOD (Green) light will initially blink until AC power has synchronized and then
turn solid to indicate the AC power is getting to the inverter. After a minimum 20 second delay, the
Battery BULK LED (Yellow) or FLOAT LED (Green) on the inverter should be on. This indicates the
charger is working properly. The Control Panel lights should indicate which charge stage (bulk or float)
the inverter is currently in. Any AC loads powered by the inverter should also work at this point since a
portion of the AC input power (Utility or Generator) is passed through the inverter to power the loads.
5. Disconnect AC power. Take away the AC input power by turning the AC power breaker off, or
unplugging the AC power cord. The inverter should transfer to inverter mode immediately. The
INVERT (yellow) LED coming on will indicate this. The inverter will begin to produce an low audible
“buzz” as it takes power from the batteries and uses it to power the loads. The loads should continue
to operate uninterrupted.
6. This completes the functional test, if all areas pass, the inverter is ready for use. If any of the inverter’s
internal setpoints are to be adjusted, consult the MENU SYSTEM section starting on page 33.
Summary of Contents for SW II - REV 4.01
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