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8. Multi-sections Configurations
Standard Arc Configurations User Manual for Eaton Arc Flash Relays
MN026009EN January 2016 www.eaton.com
8.1.2 Trip and I/O Description
EAFR-110P CS:2,A (Main)
Table 62. Trip and I/O Description - EAFR-110P CS:2,A.
Light
Current
(External)
Current
(Internal)
I/O Description
Trip Description
IL, Ig
Current inputs phase IL1, IL2, IL3,
and E/F Ig.
Measuring current for main(s).
Signal outputs: HSO1 (Current) to outgoing units EAFR-101 CS:1 input BI1.
BO1 (Current) to main units EAFR-110P CS:2,A input BI1.
BI1
Binary input 1.
Signal outputs: HSO1 (Current) to outgoing units EAFR-101 CS:1 input BI1.
S1
Sensor channel 1.
Monitoring incoming cable com-
partment.
Trip criteria: Light only.
Trip outputs: T1 (main CB), T2 (upstream CB [HV side]), T4 (trip alarm).
S2
IL, Ig
Sensor channel 2.
Monitoring incoming circuit
breaker compartment.
Trip criteria: C Light.
Trip outputs: T1 (main CB), T2 (upstream CB [HV side]), T3 (tie breaker if in use), T4
(trip alarm).
Signal outputs: HSO2 (MT) to outgoing units EAFR-101 CS:1 input BI2.
BI1
S3
IL, Ig
Sensor channel 3.
Monitoring busbar compartment.
Trip criteria: C Light. Trip outputs: T1 (main CB), T3 (tie breaker if in use), T4
(trip alarm).
Signal outputs: HSO2 (MT) to outgoing units EAFR-101 CS:1 input BI2.
BI1
S4
IL, Ig
Sensor channel 4.
Monitoring tie breaker (if in use).
Trip criteria: C Light.
Trip outputs: T1 (main CB), T3 (tie breaker if in use), T4 (trip alarm).
Signal outputs: HSO2 (MT) to outgoing units EAFR-101 CS:1 input BI2.
BI1
BI2
IL, Ig
Binary input 2.
Trip criteria: C Light.
Trip outputs: T1 (main CB), T3 (tie breaker if in use), T4 (trip alarm).
Signal outputs: HSO2 (MT) to outgoing unit EAFR-101 CS:1 input BI2.
Signal inputs: BI2 (Light) from outgoing units EAFR-101 CS:1 output BO1.
BI1
Table 63. Trip and I/O Logic - EAFR-110P CS:2,A.
Inputs
Outputs
Light
Current
(External)
Current
(Internal)
T1
T2
T3
T4
HSO1
(Current)
HSO2 (MT)
BO1
IL, Ig
x
x
BI1
S1
x
x
x
S2
IL, Ig
x
x
x
x
x
x
x
BI1
S3
IL, Ig
x
x
x
x
x
x
BI1
S4
IL, Ig
x
x
x
x
x
x
BI1
BI2
IL, Ig
x
x
x
x
x
x
BI1