© 2021 Hoymiles Power Electronics Inc. All rights reserved.
05
Single-phase Microinverter User Manual
3.4 DRM Port
The DRM port is provided to support several demand response modes as below by connecting the external
control device with a standard RJ-45 connector. The DTU-Pro can support DRM0/5/6/7/8 if used with Hoymiles
microinverters.
Mode
Requirement
DRM0
Operate the disconnection device
DRM1
Do not consume power
DRM2
Do not consume at more than 50% of rated power
DRM3
Do not consume at more than 75% of rated power and source reactive power if capable
DRM4
Increase power consumption
(subject to constraints from other active DRMs)
DRM5
Do not generate power
DRM6
Do not generate at more than 50% of rated power
DRM7
Do not generate at more than 75% of rated power and sink reactive power if capable
DRM8
Increase power generation
(subject to constraints from other active DRMs)
3.5 Local Installation Assistant
Local Installation Assistant is a new function integrated with DTU-Pro. Download the Installer App (for
installer/distributor use only) before use.
The DTU-Pro is improved over the previous generations of DTU product, and is developed with this new
function that allows the installer to:
a. Complete the Wi-Fi configuration in one step.
b. See how many microinverters under this DTU are working properly (and the details for each microinverter)
and how many are abnormal (and the details for each microinverter) at a glance through the plant overall
inverter status indication.
c. Add connection status, which displays the signal strength between each microinverter with connected
DTU, so that the installer can adjust the DTU installation location accordingly. This function simplifies DTU
installation and avoids a second visit for installer due to the poor connections between DTU and certain
microinverters.
Note:
Refer to the “Hoymiles Local Installation Assistant Technical Note” for more details.
