Help on commissioning

Commissioning support for a smooth process

If you need help with commissioning a Delta inverter, please find the options below shown by model and further instructions.

Delta inverter commissioning methods

Commissioning Method	Description	Applicable Models	Instructions
Wi-Fi Inverter Communication (point-to-point)	Commissioning with DeltaSolar App on a smartphone with a Wi-Fi enabled inverter	H2.5 Flex, H3A Flex, H4A Flex, H5A Flex	Go here
Wi-Fi Inverter Communication and DC1 Data Collector	Commissioning with a Wi-Fi enabled inverter that is connected via Wi-Fi to the DC1 (Data Collector) and the DeltaSolar App on a smartphone	M6A, M8A, M10A, M15A_220, M20A_220, M30A_330	Go here
Wi-Fi Inverter Communication without DC1 Data Collector	Commissioning with a Wi-Fi enabled inverter that is connected via Wi-Fi and the DeltaSolar App on a smartphone	M6A, M8A, M10A, M15A_220, M20A_220, M30A_330	Go here
Delta Service Software (DSS)	Commissioning via the Delta Service Software app that is installed on a Windows laptop and connected to the Delta inverter via RS485 (note: requires USB to RS485 adapter)	ALL INVERTERS - this is the primary commissioning method for M70A and M125HV	Go here

 

Point-to-point commissioning with Flex-series inverters

Commissioning procedure applicable to all Flex-series inverters:  H2.5, H3A H4A, H5A Flex

To commission the inverters you will need:

• DeltaSolar App installed on your iOS or Android smartphone
• A properly installed H2.5/H3A/H4A/H5A solar inverter
• A direct connection (point-to-point) between your inverter and smartphone.  The distance should not be more than 8 meters.

1. First download and install the App. 

• Get it on Google Play
• Download on the App Store

2. Power on the inverter 

 

 

 

 

 

As soon as the inverter is supplied with AC voltage, the Wi-Fi module activates automatically. Only one mobile device can be active at the same time.

3. Load factory setting

The inverter can be reset to the factory settings by pressing the reset button (30 seconds).

As soon as the Wi-Fi LED flashes every second, the reset button can be released.  Finally, disconnect the inverter from the grid for about 2 minutes.

 

4. Sign into DeltaSolar App

5. Download this document and follow the instructions starting on page 33:

COMMISSIONING INSTRUCTIONS HERE

If you have any questions, please contact our customer support team here.

Wi-Fi Inverter & DC1 Data Collector Commissioning

Commissioning procedure applicable to the inverters:  M6A, M8A, M10A, M15A_220, M20A_220, M30A_230

To commission the applicable inverters you will need:

• DeltaSolar APP installed on your iOS or Android smartphone
• The DC1 data collector installed to your router
• A properly installed applicable Delta Wi-Fi enabled solar inverter

1. First download and install the APP

• Get it on Google Play
• Download on the App Store

2. Power on the inverter 

3. Load factory setting (applies for M6A/M8A/M10A models)

For the M6A / M8A / M10A the Wi-Fi module can be reset in the "Install Settings" display menu.

Factory setting SSID password: DELTASOL

4. Install the DC1 Data Collector

There are three ways to supply the DC1 with voltage.

1. Supply voltage through an external power supply 9-25V / 5W

2. Standard 5V / 5W micro USB power supply

3. We recommend to use the power supply of Delta Inverters.

Each inverter has a 12V / 0.5A power supply on the communication board, which you can use for the DC1

Connections

 

• An external power supply can be connected to terminals 1 and 2 on the terminal block.
• The RS485 bus is connected with its Data + and Data- to 3 and 4.
• Please note: Data Plus on terminal 4 and Data Minus on terminal 3
• Maximum of 32 bus subscribers can be processed via RS485 and a maximum of 9 subscribers with Wi-Fi.

 

Wiring RS485 Bus to DC1

To use the DC1, the Delta Protocol must be selected in the inverter

The DC1 has no termination resistor implemented. The first and last bus participant must always be terminated.

If the DC1 is the first bus device, 120 Ohm resistor must be clamped between terminals 3 and 4.

DC1 Reset Button

Factory Reset:

 

1. Press reset button for > 15 seconds.

The "System Ready" LED on the DC1 flashes every 2 seconds.

After approx. 10 seconds, the DC1 restarts.

Note: If no RESET is possible, Firmware update of the

DC1 must be performed. After that press the

reset button again.

 

 

 

 

• Supply voltage (RS485 plug Port 1+2) 9 ... 25 VDC / 5 W
• Supply voltage (Micro-USB) 5 VDC / 5 W
• Protection degree IP20
• Relative humidity 30 ... 85%
• Operating temperature range -25 ... +55 °C
• Storage temperature range -30 ... +70 °C
• Operating height max. 2000 m
• Max. number of inverters RS485: 32 Wi-Fi: 9 Mix: 7

 

Connecting the DC1 to the Cloud

The connection of the Router and DC1 is possible with Wi-Fi or Ethernet cable

 

5. Create an account on DeltaSolar APP:

In the login mask the language can be selected first

If you are an installer, we recommend registering and commissioning with the customer's email address.

The password can be changed by the customer in the MyDelta Portal at any time.

 

6. Commissioning process on the APP:

• Sign in (MyDeltaSolar APP)
• Select Commissioning DC1
• Select Wi-Fi devices
• Confirm

Download this document and follow the APP instructions starting on page 21:

COMMISSIONING INSTRUCTIONS HERE

If you have any questions, please contact our customer support team here.

Wi-Fi Inverter Commissioning (without DC1)

Commissioning procedure applicable to the inverters:  M6A, M8A, M10A, M15A_220, M20A_220, M30A_230

To commission the applicable inverters you will need:

• DeltaSolar APP installed on your iOS or Android smartphone
• A properly installed applicable Delta Wi-Fi enabled solar inverter

1. First download and install the APP

• Get it on Google Play
• Download on the App Store

2. Power on the inverter 

3. Load factory setting (applies for M6A/M8A/M10A models)

For the M6A / M8A / M10A the Wi-Fi module can be reset in the "Install Settings" display menu.

Factory setting SSID password: DELTASOL

5. Create an account on DeltaSolar APP:

In the login mask the language can be selected first

If you are an installer, we recommend registering and commissioning with the customer's email address.

The password can be changed by the customer in the MyDelta Portal at any time.

 

6. Commissioning process on the APP:

• Sign in (DeltaSolar APP)
• Select Wi-Fi devices
• Confirm

Download this document and follow the APP instructions starting on page 27:

COMMISSIONING INSTRUCTIONS HERE

If you have any questions, please contact our customer support team here.

Delta Service Software (DSS) commissioning

Commissioning procedure applicable to:  ALL DELTA INVERTERS

For M70A and M125HV without Wi-Fi option, the DSS commissioning method is recommended

To commission the applicable inverters you will need:

• A Windows-based Laptop
• The latest version of Delta Service Software installed on the laptop (find DSS download here)
• The latest firmware update files (latest firmware download files are here)
• A USB to RS485 Adapter (Any adapter of this kind will work for this task to connect the laptop to the inverter)
• A properly installed Delta solar inverter prepared for commissioning

 

USB to RS485 Adapter

Note:  Any USB to RS485 Adapter can be used, in case you do not have one you may contact Delta support at support@solar-inverter.com to obtain one.

 

 

1. Connect the RS485 data line of the inverter to adapter.

Note: Please disconnect the existing monitoring system first.

Inverter RS485 connection 3 or 5 to RS485 adapter connection A/D +

Inverter RS485 Connection 4 or 6 to RS485 Adapter connection B/D-

2. Connect USB / RS485 adapter to computer and detect occupied COM port.

3. Start DSS Software on your laptop (find DSS download here)

Note: Make sure you have the latest firmware (latest firmware download files are here)

Download this document and follow the DSS instructions starting on page 4:

DSS APP INSTRUCTIONS HERE

If you have any questions, please contact our customer support team here.