[RE-wrenches] MATE3 Controller RE: Re-configuring expanded array

[Jason Szumlanski]

Steve,

 

That is not what is happening.  Are you saying that the inverter aux
port should still work if LBCO is reached? It does not, and I was told
otherwise by Outback Tech Support. Is the LBCO delay programmable? I do
not see that documented.

 

Please contact me off list so we can resolve this particular issue.

 

Jason Szumlanski

Fafco Solar 

 

 

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Steve
Higgins
Sent: Monday, October 03, 2011 3:48 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] MATE3 Controller RE: Re-configuring expanded
array

 

Jason, 

 

If LBCO is 46.00 and the 2 minute start is 47.2. When the voltage goes
below 47.2 the 2 minute start timer would begin to count down.When the
voltage reaches 46.00 the five minute LBCO voltage timer starts. Because
the 2 minute timer will expire in 2 minutes and even if the warm-up time
was 4 minutes, the inverter would still engage the Aux Output to start
the genset and charge the batteries. 

 

If there is a case if the LBCO occurs before the AGS 2 minute start is
activated that the generator will not start because after the load is
dropped the voltage would rise above the 2 minute start voltage. This
case is easily resolved by programming the LBCO below the 2 minute start
voltage. 

 

Even if you have hit LBCO and the inverter has shut off the AGS function
still works and will engage the relay (via the aux port) to start the
Generator. 

 

Steve Higgins

Outback Power Technologies. 

 

________________________________

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Jason
Szumlanski
Sent: Friday, September 30, 2011 11:04 AM
To: RE-wrenches
Subject: [RE-wrenches] MATE3 Controller RE: Re-configuring expanded
array

This reminded me of another subject about the MATE3.

 

I was surprised to find out that advanced generator start does not work
properly if the batteries reach LBCO before the 2 minute start timer
fires the generator with an external relay attached to one of the
inverters. The AGS settings are stored in the MATE3, so it tries to tell
the inverter to trigger the external relay once the 2 minute voltage has
been reached, but if LBCO has been reached, the inverter will not supply
voltage to the coil.

 

This logic does not work. Let's say you have LBCO set to 46.0V and the 2
minute start voltage set to 47.2V. Under a very heavy load, it is
completely plausible that the LBCO could be met before the AGS via the
inverter has time to start the generator. The only "solution" is to have
an unacceptably high (IMHO) spread between the 2 minute start and the
LBCO.

 

In this case, I don't want to set the LBCO too low (i.e. default)
because the system is unattended and if the generator does not start for
whatever reason, it is reasonable to expect that the battery voltage
could slowly decrease to the LBCO and then stay there for a long period
of time until the problem is discovered. I want to keep the LBCO
relatively high, but I want the generator to reliably start using start
timers, SOC, or load. I think this is a poor implementation of this
feature, leading me to consider a completely separate or auxiliary AGS
system that is voltage dependent without relying on the inverter relay
to start the generator.

 

Jason Szumlanski

Fafco Solar

 

 

From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of
holtek at sbcglobal.net
Sent: Friday, September 30, 2011 12:06 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Re-configuring expanded array

 

Maverick,

I don't think system owner will let me pry his mate3 out of his
hands.....and oops! it will be 2- 6 slot combiners....thanks for the
feedback. Look forward to meeting you someday.

 

 

Holt E. Kelly
Holtek Fireplace & Solar Products
500 Jewell Dr.
Waco TX. 76712
254-751-9111
www.holteksolar.com

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