Enphase Energy Envoy Manuel D'installation page 45

Where message is displayed:
Home Screen Inventory Screen
DC Resistance DC Resistance Low
Low
DC Voltage Too DC Voltage Too
High High
DC Voltage Too DC Voltage Too Low
Low
Download to
module begun
Download to
module ended
Download to
module failed
41
Description
Recommended Action: No action is required unless the condition
persists.
Description: A sensor in the microinverter measures the resistance
between the positive and negative PV inputs and ground. If either
resistance drops below a threshold, the microinverter raises this
condition. This may indicate issues due to moisture, overload,
defective circuit, live wires making contact with ground wire, etc.
If the condition persists: contact your installer or refer to the
Troubleshooting Guide at http://www.enphase.com/support/.
Recommended Action: Ask your installer to check that the PV
module and microinverter are compatible. It may be that the PV
module generates a higher voltage than is recommended for the
microinverter. Your installer may refer to the Module Compatibility
List for more information: http://www.enphase.com/support/.
Description: The microinverter reports that DC input voltage from
the PV module is too high.
If the condition persists: If the PV module is compatible and the
condition persists, contact your installer or refer to the
Troubleshooting Guide at http://www.enphase.com/support/.
Recommended action: This is usually a normal condition during
hours of low light and at dawn and dusk.
Description: The microinverter reports that DC input voltage from
the PV module is too low. If this condition does not clear during hours
of full daylight, the microinverters may be shaded or covered by
snow.
If the condition persists: If this event occurs during full daylight or
if the condition persists, contact your installer or refer to the
Troubleshooting Guide at http://www.enphase.com/support/.
If this event occurs and clears daily or often during hours of full
daylight, check that the PV module and microinverter are compatible.
Refer to the Module Compatibility List for more information:
http://www.enphase.com/support/.
Description: The Envoy has started a software upgrade to the
indicated microinverter.
This process may take a few minutes. No action is required.
Description: The Envoy has successfully delivered a software
upgrade to a microinverter.
No action is required.
Description: The Envoy was unable to successfully deliver a
software upgrade to a microinverter.
No action is required; the Envoy will repeat the attempt.
Copyright  2011 Enphase Energy
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