SMA MULTIFUNCTION RELAY - Manual (Page 15)

SMA Solar Technology AG 4 Electrical Connection
Installation Manual MFR-NR-IA-en-21 15
5. Fasten the multifunction relay using the washer and
the cylindrical screw (torque: 1.5 Nm). Use an
Allen key (AF 3).
6. Install the display:
• Plug the ribbon cable plug into the pin
connector on the display assembly.
• Lead the display into the right-hand retainer.
• Lead the display into the left-hand retainer.
4.4.3 Installing the Multifunction Relay in the Sunny Boy /
Windy Boy or Sunny Tripower
Procedure:
2. Release the display assembly screw and flip the display assembly up.
3. The display assembly snaps into place.
Displayed graphics
This section describes the installation of the multifunction relay, but only shows the
Sunny Tripower in the illustrations. The procedure for installing the multifunction relay in
Sunny Boy / Windy Boy and Sunny Tripower inverters is identical. Only the inverter
environment is different.
1.
Danger to life due to high voltages in the inverter
• Disconnect the inverter from all voltage sources and open the lower enclosure lid
(see inverter manual).