The output signals from the ABB 216AB61 unit (signalling channels) and 216DB61 unit (trip channels) control the auxiliary relays K1...K16 of the 216GA61 O/P relay unit or 216GA62 tripping relay unit. The auxiliary relays' contacts are potentially-free and wired to terminals for connection to external signalling and tripping circuits.The 216AB61 unit has 32 (2 x 16) signalling outputs. All outputs 1...16 are available for use on the 216GD61a. When using a second 216GD61a unit, signalling relay O/P’s 1...16 and 17...32 can be controlled.
The 216AB61 output unit transfers signals generated by the activated protection functions to the auxiliary relays K1...K16 in the 216GA61 O/P relay unit for purposes of remote signalling.
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