SW sync problems [RE-wrenches]

Drake Drake.Chamberlin at redwoodalliance.org
Tue Nov 15 20:42:17 PST 2005


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Thanks Mark,

The problem does look like a low voltage issue after all.  We opened up the
parameters and are crossing our fingers.

Drake


----- Original Message ----- 
From: "Mark Edmunds" <mark.edmunds at xantrex.com>
To: <RE-wrenches at topica.com>
Sent: Monday, November 14, 2005 3:29 PM
Subject: RE: SW sync problems [RE-wrenches]


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Hi Drake,

Some things to check on the inverters once you have verified that the
grid V and f is OK (within range 53 - 67 Hz):

1. Check connections at the inverters AC terminal block, both factory
side and field install side, make sure ALL screws are tight and wiring
is not loose.

2. Remove all 240Vac loads from the inverter's output and disconnect the
SWI cable between the two units.

Test each unit individually -  verify each inverter output voltage is
within 117-123Vac. Means good DC voltage, providing good sync signal,
and inverter circuit breaker is closed.


If none of these checks finds anything then a call to tech support would
be the next step.

Best Regards,

Mark



Mark Edmunds
Xantrex Technology Inc.

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