Issue: No Devices Are Reporting; Issue: Installer Toolkit Indicates That Scanning Is Inhibited - enphase ENV-S-WM230 Installation And Operation Manual

Relocate your Envoy as close to the switchboard as possible. This ensures that the Envoy

receives the strongest possible signal from each device.
 If this problem occurs when light levels are low, try again during daylight hours.

Issue: No Devices are Reporting

Check for the following conditions.
Has a device scan been run while the array was active? A device scan may have been run
while the array was not connected to the grid or when the array was not powered by sunlight.
Run another scan during daylight hours.

Check that the circuit breaker(s) for the PV array are in the "ON" position. For the Envoy to

communicate with the devices, the PV circuit breakers must be in the "ON" position at the
switchboard.
Verify that the PV modules are connected to the microinverters.

Is the Envoy well located? The Envoy must be near the primary switchboard or the array's
downstream sub-board. If installing the Envoy-S Standard:
As an alternative if signal strength is poor, power the Envoy from the solar production circuit

(where local electrical code allows for monitoring equipment on the same circuit). This
provides the best possible power line communications. The Envoy must be located indoors
(a garage, attic, basement, or other cool, dry location) or in an IP54-rated enclosure.
Remember that the Envoy must also have an Internet connection.
Is the system energised? PV modules power microinverters, PV modules provide power only
during daylight hours, and microinverters communicate only when powered.
Run another scan during daylight hours.

Check that the circuit breaker(s) for the PV array are in the "ON" position. For the Envoy to

communicate with the microinverters, the PV circuit breakers must be in the "ON" position at
the Switchboard.
Verify that the PV modules are connected to the microinverters.

Is there a phase imbalance?
Ask the electrician to measure the conductors and neutral line to verify that the phases are

balanced. If the phases are not balanced, electricians must recheck the wiring.
Is the Envoy-S wired into a circuit on the primary switchboard while the PV circuit
breakers are on a downstream sub-board? The primary switchboard is full and doesn't have
additional capacity to add circuit breakers.
Add a sub-board with a small subset of circuit breakers

Hard wire the Envoy-S into that sub-board, so that it can be close to the PV circuit breaker.


Issue: Installer Toolkit Indicates that Scanning is Inhibited

It is best to leave the Envoy in this condition for normal operation. However, if you need to re-enable
scanning (for example, if you replace a device) contact Enphase Customer Support
(enphase.com/global/support-request).
35
Envoy-S Metered Multiphase Installation and Operation
© 2016 Enphase Energy Inc. 141-00035 Rev 01