INVOLAR Corporation, Ltd.
Manual version 1.12
INVOLAR Corporation Ltd. Mar. 2016
31
6.
Function Instructions
Working Mode
The working modes of an INVOLAR Micro-Inverter are:
Start-up
Active
Fault
Standby
The detailed working mode descriptions are as below:
Start-up
Start-up mode is for a newly installed INVOLAR Micro-Inverter. This
start-up mode must base on the proper AC and DC cables connecting
and whole PV system grounding.
Active
When the Micro-Inverter is in normal operation process, this insures that
the power available from each PV module is exported to the utility grid.
Fault
If the PV system does not operate correctly, INVOLAR Micro-Inverter
would stop automatically and enter into Disable mode. The INVOLAR
Micro-Inverter system keeps detecting the disable information. The
INVOLAR Micro-Inverter is in disable mode until fault release. If the
inoperative Micro-Inverter has been repaired and match to the
electrical utility grid, the whole INVOLAR Micro-Inverter system would
enter operation mode after 20 seconds to 5 minutes. Be aware that only
qualified personnel should maintain the INOVLAR Micro-Inverters.
Standby
When the Micro-Inverter is in operation process but keeps with low
voltage and current in AC side for a certain time. The Micro-Inverter
manages transition from “Active” to “Standby”. In “standby” mode,
Micro- Inverters keep detecting the energy output of PV Modules. When
the output energy reaches the power generation conditions, the
inverter would enter into “Active” from the “Standby” state.
CAUTION
INVOLAR Micro-Inverter cannot enter into “Standby” or “Active”
mode when the PV modules are insufficient in the conditions of
night and rainy day.