SMA DATA MANAGER M, Operating Manual

Page: 27 / 58

6 Connection SMA Solar Technology AG
Operating manual EDMM-10-BE-en-20 27
Circuitry overview:
6
K1
K2
K3
K4
DATA MANAGER
1
2
3
4
5
Ripple control receiver
Fast-Stop
Figure 7: Connection of a Ripple Control Receiver
Procedure:
1. Connect the connection cable to the digital signal source (see the manual from manufacturer).
2. Connect the connection cable to the supplied six-pole plug. For this, unlock the required
terminal positions using a suitable tool and plug the conductors into these terminal positions.
3. Connect the six-pole plug to terminal X3 . Observe the pin assignment.
4. Note the terminal assignment.
6.4 Connecting RS485 Devices
The product is suitable for the communication with RS485 devices via Modbus RTU.
Cable requirements:
The cable length and quality affect the quality of the signal. Observe the following cable
requirements.
☐ Number of insulated conductor pairs and insulated conductor cross-section: at least 2 x 2 x
0.22 mm²
☐ Maximum cable length across the entire RS485 bus: 1200 m
☐ Twisted pair conductors
☐ Shielding: yes
☐ UV-resistant for outdoor use.