18
3. Two Mains without Tie Breaker
Standard Arc Configurations User Manual for Eaton Arc Flash Relays
MN026009EN January 2016 www.eaton.com
EAFR-110P CS:4,A
Table 19. Trip and I/O Description - EAFR-110P CS:2,A.
Light
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:2,A input BI1.
S1
Sensor channel 1.
Monitoring incoming cable compartment.
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: BO1 (Light) to main unit EAFR-110P CS:2,A input BI2.
Signal outputs: HSO2 (MT) to main unit EAFR-110P CS:4,A input BI1 and outgoing
units EAFR-101 CS:1 input BI2.
Signal inputs: MT from main unit EAFR-110P CS:2,A output HSO2.
S3/S4 IL, Ig
Sensor channel 3/4.
Monitoring busbar compartment.
Trip criteria: C Light.
Trip outputs: T1 (main CB), T3 (not in use), T4 (trip alarm).
Signal outputs: HSO2 (MT) to main unit EAFR-110P CS:4,A input BI1.
Signal inputs: MT from main unit EAFR-110P CS:2,A output HSO2.
BI1
Binary input 1.
Trip criteria: C Light.
Trip outputs: T1 (main CB), T3 (not in use), T4 (trip alarm).
Signal inputs: MT from main unit EAFR-110P CS:2,A output HSO2.
Table 20. Trip and I/O Logic - EAFR-110P CS:4,A.
Inputs
Outputs
Light
Current
(Internal)
T1
T2
T3
T4
HSO1
(Current)
HSO2 (MT)
BO1
S1
x
x
x
S2
IL, Ig
x
x
x
x
x
x
S3
IL, Ig
x
x
x
x
x
S4
IL, Ig
x
x
x
x
x
BI1
x(MT)
x(MT)
x(MT)