Technical data

Envoy Installation and Operation
Copyright  2012 Enphase Energy 141-00011 Rev 03
40
Where message is displayed:
Description
Home Screen
Inventory Screen
DC Resistance
Low
DC Resistance Low
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 to 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/.
DC Voltage Too
High
DC Voltage Too High
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/.
DC Voltage Too
Low
DC Voltage Too Low
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/.
Download to
module begun
Description:
The Envoy has started a software upgrade to the indicated
microinverter.
This process may take a few minutes. No action is required.
Download to
module ended
Description:
The Envoy has successfully delivered a software upgrade to
a microinverter.
No action is required.
Download to
module failed
Description:
The Envoy was unable to successfully deliver a software
upgrade to a microinverter.
No action is required; the Envoy will repeat the attempt.