Binary Inputs; Binary Outputs - ABB RELION REB500 Technical Manual

Section 5
Bay protection functions
5.1.3.2

Binary inputs

• Reversal of measuring direction
• Distance function blocking
• Underimpedance starter blocking
• Power-swing blocking
• Overcurrent backup blocking (O/C backup)
• Dead line
• Manual CB close
• Zone extension
• Isolator open
• Communication receive
• Communication channel failure
• Single-phase autoreclosure ready
• Tripping condition blocking for the switch-onto-fault protection
• Incoming PLC blocking signal
• First zone blocking
5.1.3.3

Binary outputs

• L1+L2+L3 starters
• L1L2L3 starter
• L1 starter
• L2 starter
• L3 starter
• E starter
• I0 starter
• U0 starter
• I> starter
• Z< starter
• Overcurrent backup starter (O/C backup)
• Switch-onto-fault starter
• Single-phase starter
• CB trip
• L1L2L3 trip
• L1 trip
• L2 trip
• L3 trip
• Three-phase trip
• Single-phase trip
• Overcurrent backup trip (O/C backup)
• Switch-onto-fault trip
• Trip with transfer trip signal
• Short-zone protection trip
• Time ≥ 2nd step
• Timer
• Zone 2 time
• Zone 3 time
• Zone 4 time
• Final zone time
• Measurement
• Overreaching measurement
• Forwards measurement
• Reverse measurement
• Weak infeed trip
• Distance protection blocked
• Power-swing blocking
• VT supervision
• Delayed VT supervision
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Bay protection functions REB500
Technical manual