Optional communication protocols

AC / DC Switch Protection

Safety protection

In order to ensure the safety during installation, the inverter

equips wtih an AC/DC switch which is design to manually

cut off both AC & DC power sources from internal circuit

at the same time. When turn off the switch, the AC AUX

Power inside will detect the movement, and internal DSP

will execute AC protection mechanism program, and cut

off AC relay & DC relay at the same time. Thus, the inverter

will be completely power off which will prevent any possibility

of installer getting an electric shock.

According to safety regulation, AC Relay is

requested to be installed at AC output in the

inverter. In this series of PV inverter, additional

DC Relay is also available providing additional

extra safety protection mechanisms.

For instance, when the inverter is not yet reached

DC working voltage range, PV panel will not

be able to feed in any energy to the inverter

which to ensure the inverter during standby

mode will not be damaged by any possible

external causes.

In addition, if DSP detects abnormal voltage

causes by capacitor, it will cut off DC Relay

automatically to avoid from capacitor explosion

which may direct to serious fire damage to the

inverter or the entire PV system.

Delta RPI M6A/M8A/M10A

The inverter comes with standard RS485 communication port. Optional WiFi /

Ethernet communication port can be easily enhanced and gives more convenience

and flexibility in monitoring system design. For example, the free Delta Insight

Power Monitoring webpage display the output data in a clear manner so that you

can see how much solar energy the system is generating and has fed into the

public grid at any time you want to see.