morningstar 45 amp mppt

lionheartlakes

Hi
I have 2 x morngstar 45amp mppt controllers installed with
1st controler 3 x 155W 24v 43.4voc
2nd cont 3 x175w 24v panels

batteries 12v 600 amp 2 v GNB ABSOLYTE

Everything has been running fine for a month until I started getting a LED Fault code on the 2nd controller
3 x175w 24v panels
FLASHING G/R
Y SOLID

The voltage on the displays does not seem high
Battery 12.3v
55watts
Any help and advice would be very much appreciated

Solar Guppy

Re: morningstar 45 amp mppt

http://www.morningstarcorp.com/en/support/library/TSMPPT.IOM.EN.04.pdf

According to the manual, page 41, a G+Y to Y+R means either the BTS has been removed or faulted or the remote battery sense has been removed or faulted

I would check your wire where they are secured in the controller ( terminal blocks )

You have to power cycle the controller to reset the fault

lionheartlakes

Re: morningstar 45 amp mppt

Hi Thanks for your reply
G / R sequencing Y solid
im not sure it the bts or bvs but i will check wiring and try disconnecting both and switching the power off resetting & restarting the controller

lionheartlakes

Re: morningstar 45 high battery voltage 55v

hi
I have removed both sensors but still im getting the same fault
What do you mean by power cycle?

I have also noticed that on the controller thats working correctly i get 12.5v battery volts, but on the faulty controller its showing 55v battery voltage i have tried resetting, turning the power off (battery & pv) but with no luck.
I have checked the battery voltage at the batteries and i get the same reading as the correctly operating controller gives 12.5.

Any help would be appreciated

Regards

Nic

Solar Guppy wrote: »

http://www.morningstarcorp.com/en/support/library/TSMPPT.IOM.EN.04.pdf

According to the manual, page 41, a G+Y to Y+R means either the BTS has been removed or faulted or the remote battery sense has been removed or faulted

I would check your wire where they are secured in the controller ( terminal blocks )

You have to power cycle the controller to reset the fault