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3. Operation and Configuration
EAFR-110 Current and Arc Light Sensor Relay User Manual
MN026007EN February 2016 www.eaton.com
3.6 Dipswitch Settings
The EAFR-110 functionality, such as tripping logic, is config-
ured using the dipswitch settings. The relay contains two
switch groups SW1 and SW2 (see Figure 5). The dipswitch-
es are located at the back of the relay for easy access.
Figure 5. EAFR-110 Dipswitches SW1 and SW2.
Light
Light
Light
Type A
Type B
Light and Current
Light and Current
Light and Current
Configuration Select:
S1 Sensor Channel 1:
S2 Sensor Channel 2:
S3 Sensor Channel 3:
Arc Configuration:
8
7
6
5
4
3
2
1
SW1
SW2
Latch
Latch
TBD on
Fast
100 ms
1 A
1 A
5 A
5 A
150 ms
CBFP
TBD off
Non Latch
Non Latch
8
7
6
5
4
3
2
1
Ground Sensor:
Phase Sensor:
CBFP Time:
Trip Relay:
S5:
S1:
HSO:
T1/T2:
Different trip configurations can be easily programmed by
selecting the appropriate dipswitch settings. The most
convenient way to set the EAFR-110 single relay or more
complex arc protection system is to use the Standard Arc
Configurations (SACs). For different SAC applications, see
the “Standard Arc Configurations” manual (MN026009EN).
Tripping may be selected based on arc light only or current
thresholds. Other tripping criteria, such as under-voltage or
similar, may be applied instead of over-current as well using
binary inputs. The circuit breaker failure protection (CBFP)
configuration may also be enabled using the dipswitches.
See Table 2: EAFR-110 Dipswitch SW1 Setting and Table 3:
EAFR-110 Dipswitch SW2 Setting for details of settings.
Table 2. EAFR-110 Dipswitch SW1 Setting.
Dipswitch
Function Selection
ON (Left Position)
OFF (Right Position)
8
S1: Light / Light + Current
Sensor channel 1 trip criteria.
Trip on light only.
Trip on light and over-current. Both signals are
required simultaneously to trip.
7
S2: Light / Light + Current
Sensor channel 2 trip criteria.
Trip on light only.
Trip on light and over-current. Both signals are
required simultaneously to trip.
6
SX: Light / Light + Current.
Sensor channels 3 - 5 trip criteria (channel 3
in EAFR-110F)
Trip on light only.
Trip on light and over-current. Both signals are
required simultaneously to trip.
5
a/b
Selection of standard arc configuration type. Standard arc configurations
type a.
Standard arc configurations type b.
4
Configuration select
Selection of standard arc configuration.
Refer to MN026009EN.
Refer to MN026009EN.
3
Configuration select
Selection of standard arc configuration.
Refer to MN026009EN.
Refer to MN026009EN.
2
Configuration select
Selection of standard arc configuration.
Refer to MN026009EN.
Refer to MN026009EN.
1
Configuration select
Selection of standard arc configuration.
Refer to MN026009EN.
Refer to MN026009EN.