Classic SL owner’s manual REV E 2056
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Classic goes to Float to
early
*Make sure End Amps is not set to high causing the Classic to go to Float (End
Amps is in the Charge menu and the way it works is if the charge current falls
below the End Amps setting AND the Classic is in Absorb the Classic will go
to Float. Setting End Amps to 0 will disable it. End Amps setting is a value the
battery manufacturer supplies
*Make sure you have the Absorb time is set properly
Follow Me with my
Classic Lite is not
working
*Classic Lites older than serial # CL05435 did not work with Follow Me
please call customer service for a new MNLP
*Verify you are seeing the short blips of the blue LED internally as talked
about above. If not please check all your cables.
My Classic says “OCP is
OFF” on the display
*This can happen on older Classics that have had the firmware updated. This
will have no effect on the operation of the classic but to make the message go
away do a factory restore to fix this. (Warning all settings will be lost)
My Classic says “OCP”
now and then on the
display
*This can be normal if the battery bank is small or the inverter cables are too
small. If this shows up just once in a great while that would be ok but if it is
happening pretty regularly you may want to look at the size of the battery
cables, Age of the battery bank or the size of the battery. Call customer service
for assistance
My Classic has an
orange LED on the
display lit up and or says
“Amp Limit”
*This indicates the Classic is current limiting. Either because it has reached the
current limit you have set in the Charge menu under limits or because it is to
hot and it is backing its current down to prevent overheating. Go into the Main
menu and the Charge category, Look in the Limits sub menu and verify the
amp limits for In and Out are set to what you desire.
My Classic says “Hyper
VOC’ on the display
*This is indicating that the input voltage has exceeded the operational voltage
of the Classic. If this is happening now and then on rare occasions when it is
really cold then this is normal. If this is happening all the time this indicates
the PV array was wired for too high a voltage, Please consult your installer for
assistance with that
My Classic says
“Battery over V” on the
display
*This is an indication the Classic thinks the battery voltage is to high and has
stopped charging.
*This can happen with multiple controllers that are not networked together if
one of the classics goes to float it can show this and will go away as soon as
the other controller goes to float.
*If this is a new install the wrong nominal voltage may be selected and a
factory restore will be needed.
*if this is a running system then you may have another charging source that
has malfunctioned and over charging the battery bank
My Classic says “GRND
FLT” on the display and
is making a loud
beeping
*Generally this would be caused by the PV or Battery positive shorting to
ground somewhere in the system. The first thing to do is verify it is a real fault
by carefully measuring between Battery Negative and Earth ground. If you see
any voltage here than the system has a fault. Call your installer for help finding
and rectifying the fault. The Classic will automatically stop showing the fault
when the issue is fixed
Summary of Contents for Classic 150-SL
Page 16: ...Classic SL owner s manual REV E 2056 16 P a g e 1 0 0 0 1 3 R E V E Diagram 1...
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Page 41: ...Classic SL owner s manual REV E 2056 41 P a g e 1 0 0 0 1 3 R E V E Table 8...