Disconnecting A Microinverter From The Pv Module - Siemens SMIINV215R60XX Installation And Operation Manual

Disconnecting a Microinverter from the PV Module

To ensure the microinverter is not disconnected from the PV modules under load, adhere to the
following disconnection steps in the order shown:
1. Disconnect the AC by opening the branch circuit breaker.
DANGER
working on this equipment. Disconnect the Siemens Microinverter from the electrical
utility grid prior to servicing.
2. Disconnect the first AC connector in the branch circuit.
The Siemens Microinverter AC connectors are tool-removable only. To disconnect a
microinverter from the Trunk and Drop Cable, insert the two large prongs of the
disconnect tool (shown below) into the two holes in the drop connector. Rock the
connector back and forth while pulling gently to disengage.
If the disconnect tool is not available, insert a #3 Phillips screwdriver into one hole,
and rock that side of the drop connector out. Then, insert the screwdriver into the
other hole and pull the connector out entirely.
3. Cover the module with an opaque cover.
4. Using a DC current probe, verify there is no current flowing in the DC wires between
the PV module and the microinverter.
5. Care should be taken when measuring DC currents due to the fact that most clamp-
on meters must be zeroed first and tend to drift with time.
6. Disconnect the PV module DC wire connectors from the microinverter.
7. Remove the microinverter from the PV array racking.
DANGER Hazardous voltage. Will cause death or serious injury. Turn off Power before working on this
equipment. Do not leave the drop connector uncovered for an extended period. If you do not plan to
replace the microinverter immediately, you must cover any unused connector with a sealing cap. Listen
for two clicks as the connectors engage. Ensure that both latching mechanisms have engaged. Note that
the shipping cap does not provide an adequate environmental seal. IP67-rated sealing caps are required
for the system to be UL compliant and to protect against moisture ingress.
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Hazardous voltage. Will cause death or serious injury. Turn off Power before
Copyright 2011 Siemens Industry, Inc. 141-00015, Rev 01