Sma MULTIFUNCTION RELAY User Manual download pdf (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.

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).

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Sma MULTIFUNCTION RELAY User Manual Page 15