Power smart PS5040 Instruction Manual page 16

device(s) with the highest additional surge watts to the total rated watts from step 2.
WARNING: You must isolate the generator from electric utility by opening the electrical
system's main circuit breaker or main switch if the generator is used for backup power.
Failure to isolate the generator from the power utility may result in injury or death to electric
utility workers and damage to the generator due to backfeed of electrical energy.
CAUTION: When the overload indicator is on (See fig.8), it
indicates that the generating set is overload and it may cause
overheat of frequency converter, or increase of AC voltage.
And then the AC protector works. It will stop the output of
generating set to protect the electric equipment and the generating set
itself. At this time, the running indicator(green) is off and the overload
indicator(red) is on, but the engine is still in running set.
When the generating set has no output and the overload indicator is on, please take the following steps:
1. Lower the total power of connected electric devices to the rated
output range of generating set.
2. Check the air intake for impurities and check the control parts
for abnormal situation. Handle immediately if necessary.
3. Press the reset button (See fig.9).
PARALLEL OPERATION
Make sure that the generating set is in a good running state before connecting it to other generating
sets. The total power of electric devices should not exceed rated power of generating set.
When electric motor starts, the overload indicator (red) will light up and normally it will stop within
4 seconds. If it cannot stop, please call (800) 791-9458 Mon-Fri 9-5 EST or
email: support@amerisuninc.com for customer service.
During parallel operation, energy-saving switches of generating sets should be in the same position.
To parallel operation, perform the following steps:
1. Connect one generating set to other generating set(s) in parallel. Use the parallel kit to make the
parallel connection (the parallel kit needs to be purchased separately).
2. Start the engine in proper order and make sure that the running indicator (green) is normal.
3. Connect the plug of electric devices to the AC receptacle of parallel kit.
4. Run the electric devices.
CAUTION: When overload too much, overload indicator (red) blinks continuously,
and the generating set may be damaged. When overload a little, overload
indicator (red) lights up continuously, it may shorten the service life of generating set.
When continuously operating the generating set, power cannot exceed the rated power
of generating set.
The total power of electric devices cannot exceed the rated power of generating set. The manufacturers of
electric devices or tools always list the rated power of similar models or serial number.
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Overload Indicator
Fig.8
Reset button
Fig.9