ABB 615 series Technical Manual page 461

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1MAC059074-MB A

615 series ANSI

Technical Manual

Reset delay time

GUID-21DD081C-AB4D-4120-A8AB-4F29E2EE4117 V1 EN

Operation in "Intermittent EF" mode, Peak counter limit = 3

Blocking logic

There are three operation modes in the blocking functionality. The operation modes are

controlled by the BLOCK input and the global setting Configuration/System/Blocking

mode which selects the blocking mode. The BLOCK input can be controlled by a binary

input, a horizontal communication input or an internal signal of the protection relay's

program. The influence of the BLOCK signal activation is preselected with the global

setting Blocking mode.

The Blocking mode setting has three blocking methods. In the "Freeze timers" mode, the

operation timer is frozen to the prevailing value. In the "Block all" mode, the whole

Protection functions

Trip delay time

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