[Fwd: SW2512MC] [RE-wrenches]

Todd Cory, Bald Mt. Solar toddcory at jps.net
Sat Oct 14 08:56:52 PDT 2000


Hi Wrenches...

For all of you out there that might run into one of these "MC" versions of the
Trace SW inverters, here are the details on the differences...

Todd Cory

Tony Boatwright wrote:

> Todd,
>
> UL requirements for mobile applications and residential / commercial
> applications are very different and much of the safety requirements can not
> be interchanged, this is why Trace / UL require separate inverter/UL
> standards for the different applications. There is no legal way to enable
> any utility interactive function in the "MC" version of the SW inverter.
> Below is a list of the difference between the "AE" and "MC" versions.
>
> The Motor Coach version includes several changes in the basic operation of
> the inverter from the standard operation of the Rev 3.0 and Rev 4.01
> software previously shipped in the "AE" versions.
> ·       AC2 Priority - The AC2 input (generator) is now the priority.  If
> the AC1 (grid) is energized from the shore cord being plugged in, then it
> will be disconnected when the generator is started.  The transfer from shore
> cord to generator may take 8 seconds or more.  (The terminal block on the
> inverter still lists AC1 as the priority - the change was made in the
> software only for the MC version.)
> ·       No Cool Down - The Rev 4.01 software includes a cool-down period for
> the generator after it was operated.  This is not included in the MC
> software.
> ·       Menu Headings have been eliminated -
> 1)      SELL function (allows excess current to be sold into the utility
> grid) and all related functions have been removed to prevent unintentional
> sell back of current to the utility grid (requires local utility approval).
> 2)      LBX function (transfer back and forth to shore power based on
> batteries) is removed to prevent any unintentional discharge of batteries -
> which would decrease battery life without an external DC charging source.
> 3)      SLT function (shore power pass-thru with out any battery charging)
> removed to prevent unintentional battery drain on batteries from DC loads -
> even with the shore power plugged in the batteries are not receiving a
> charge.
>
> Important Default Setting Changes for the MC Version
>
> The MC version includes several changes from the default setting of the AE
> version software.
> ·       Shore Cord Size - A new menu item, SET SHORE CORD AMPS AC, has been
> included in the USER menu under the SET INVERTER (1) menu heading to allow
> adjustment of the SET GRID (AC1) AMPS AC menu item in the SETUP menu.  This
> makes it easier for the user to change the setting based on the hook-up
> capacity.  It should be set to match the shore cord being used by the coach
> user when connecting the coach to utility power.
> ·       Battery Charging - The software is programmed to have the default
> settings be appropriate with sealed gel cell or AGM type batteries.  The
> equalization system has been defeated.
> ·       Generator Starting - The software defaults to a new generator start
> routine designed for use with Onan and many diesel generators.  See the Rev
> 4.01 manual for more information.  The warm-up period for the generator has
> been reduced to 16 seconds.  The exercising system has been disabled
>
> Tony Boatwright
> Sales Support Group
> Distributed Residential and Commercial Markets
> Xantrex / Trace Engineering
> Email: tboatwright at traceengineering.com
> Website: www.traceengineering.com
> Tel: (360) 435-8826 x2202
> Fax: (360) 435-2636

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