Subject:
Installation of energy meter SDM72DM-V2 MID for integration of an external generator into
the RCT Power APP
Dear customer of RCT Power GmbH,
we would like to thank you for the trust you have placed in us and for purchasing an RCT Power system.
To enable you to integrate an existing inverter (external generator) into the RCT Power App follow the instructions
below:
1. mechanical installation
The energy meter can be mounted -like a DRT428DC-V3- via the top-hat rail.
2. electrical installation
Follow the instructions in the SDM72DM-V2-MID user's manual. 3.
3. electrical connection to RCT Power inverter
Connect pin 1 of interface X103 to S0+.
Connect pin 2 of the X103 interface to S0-.
Further explanations of interface X103 can be found in the RCT
Power inverter operating manual.
Note: meter shall not be installed as described in manual
chapter 8.5.2
4. programming the meter:
SDM72DM-V2 can only be configured with max 1000Imp/kWh.
the current to be measured in the desired current direction for the S0 signal is configurable by
selection with Import or Export(Attention: direction depends on the wiring of L1,L2,L3
through counter), as follows:
Press the Enter key for >3 s. Password entry with 0000 appears.
Use the arrow key to set the password to 1000 (default) and confirm with Enter (>3s).
Continue in the menu with the arrow key until SYStype appears and press Enter >3s. With
3P4W (default) the correct setting for the 3-phase network appears. Press Enter >3s.
Continue in the menu with the arrow key until "PLS Out" appears. Confirm with Enter >3s,
and with the arrow key the S0 signal can be configured to the desired current direction by
means of import or export. Confirm with Enter >3s.
Continue in the menu with the arrow key until "PLS Cst" appears for pulse rate and confirm
with Enter >3s. to confirm.
Now 1000 (default) appears for 1000 Imp/h (do not change).
5. Configuration in RCT Power App
Select setting under device→Digital I/O's →"Input S0 external power" for input Digital I/O 1.
Setting under Device→Digital I/O's →"Number of pulses /kWh" =1000.
Check whether external power ("G symbol") is activated.
Note:
The second input of interface X103 can only be used with restrictions if necessary.