ABB RELION REX640 Technical Manual page 1238

Protection and control

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Protection related functions

Figure 703: Functional module diagram

The applied communication scheme logic in DSOCPSCH is selected with the

type setting.

Table 1181: Communication scheme based on the Scheme type value

Scheme type value

"Permissive Underreach"

"Permissive Overreach"

The unblocking scheme (DCUB) is enabled with the

The multiplexer connects an input signal to an output based on the value of the

Scheme type setting.

Communication scheme

Unblock Mode setting.

1MRS759142 F

Technical Manual