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6 Electrical Connection SMA Solar Technology AG <br />Installation ManualSBxx-1SP-US-41-IA-xx-12 38 <br />Using the Multifunction Relay as a Fault Indicator Contact <br />You can use the multifunction relay as a fault indicator contact and have an error or smooth <br />operation of the inverter displayed or signaled via a suitable display device. You can connect <br />multiple inverters to one fault indicator or operation indicator, as needed. <br />B F <br />1 2 3 <br />B F <br />1 2 3 <br />B F <br />1 2 3 <br />B F <br />1 2 3 <br />B F <br />1 2 3 <br />B F <br />1 2 3 <br />== <br />Light on <br />Grounding, <br />if applicable <br />Trouble-free <br />operation (B) <br />Error (F) <br />Operation message Error message <br />Fuse <br />Light on <br />Error in the <br />inverter <br />Inverter <br />in operation <br />Inverter <br />in operation <br />Fuse <br />max. 30 VDC <br />Figure 9 : Circuit diagram with multiple inverters for connection to an operation indicator and circuit diagram for <br />connection to a fault indicator (example) <br />EN <br />G <br />L <br />I <br />S <br />H <br />534 S Sycamore St <br />- 10110979707/01/22