Commissioning; Commissioning Procedure - Delta RPI-M8 Manual

1. Large Grid harmonics
HW AC OCR 2. Switching device is defective
3. Detection circuit malfunction
The detection circuit for
HW ZC Fail
synchronal signal malfunction
1. Switching device in boost is
defective
DC Current
2. Driver for boost is defective
High
3. Input current detection circuit
malfunction
10. De-Commissioning
10.5 De-Commissioning Procedure
If it is necessary to put the RPI-M8/ M10/ M12/ M15/ M15A/ M20/ M20A/ M30 out
of operation for RMA or maintenance, please follow the instruction below.
!
WARNING！Death and serious injuries may occur.
To avoid injuries, please follow the procedures below:
1. Switch off AC circuit breaker to disconnect with electricity grid.
2. Switch off DC switch to disconnect with DC source.
3. Switch off the PV Array switch to disconnect with PV Array.
4. Use proper voltage meter to confirm that the AC and DC power
present totally absent.
5. Remove the AC wiring immediately to completely disconnect
with electricity grid.
6. Remove the DC wiring to disconnect with PV Array.
7. Remove the Communication module RS-485 with the computer
connection.
After finishing all the procedures, user can remove the RPI-M8/ M10/ M12/ M15/
M15A/ M20/ M20A/ M30.
1. Check the utility waveform. Grid connection of
inverter need to be far away from non-linear
load if necessary
2. Check all switching devices in inverter stage
3. Check the detection circuit inside the inverter
Check the detection circuit for synchronal signal
inside the inverter
1. Check all switching device in boost
2. Check the driver curcuit for boost inside the
inverter
3. Check input current detection circuit
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