SMA Sunny Island 4548-US, Техническое описание

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SMA America, LLC 6 Electrical Connection
Technical description SI4548_6048-US-TB_en-13 55
6.4.4 Multifunction Relay 1 and 2
The Sunny Island offers you several options for the control of internal and external processes. For this
purpose, two multifunction relays are integrated into the Sunny Island to which you can assign
functions using the parameters "241.01 Rly1Op" and "241.02 Rly2Op" (see Section 15 "Relays",
page 140).
We recommend connecting the load shedding and generator request functions to the master, since,
if a failure occurs, the slave may be waiting for a confirmation, but the master continues to operate
and the device can at least operate in a limited capacity.
Operating principles of the relays
The relays are change-over contacts; they can be used as break contact or as make contact.
You can only assign one function to each relay!