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3. Operation and Configuration
3.3 Push-button Description
The EAFR-102 contains one single push-button (SET) that
can be used for all operational functions of the unit. The
push-button is used to initialize the auto-configuration of the
system and for resetting the indicators and latched output
relays.
3.3.1 Auto Configuration (System Setup)
When all sensors and binary lines have been connected, an
auto-configuration procedure must be executed. The initial-
ization sequence is performed by pressing the "SET"-button
for two seconds, and the EAFR-102 sensor LEDs and BI1/
BI2 LEDs start blinking. The unit scans these inputs to see
if they are connected and when an input is detected the
corresponding LEDs are illuminated to mark that a connec-
tion was found. The inputs without a connection continue
blinking during the remaining three seconds. After five sec-
onds, all LEDs are turned off. During this system setup, the
dipswitch settings are also stored in non-volatile memory.
All sensor inputs will remain operational even when not
auto-configured. The auto-configuration is only used for self-
supervision purposes.
N
otee:
To redo auto-configuration for a unit containing less
connections (binary inputs/outputs or sensors) than
in previous memorized set-up, a dip-switch (anyone)
must be moved back and forth prior to performing
auto-configuration. Timeout allowing new configura-
tion is one minute. Reconfiguration with more con-
nections is allowed without moving the dip-switch.
Figure 3. EAFR-102 Dipswitches.
Configuration Select:
4
EAFR-102 Arc Fiber Loop Sensor Relay User Manual MN026006EN February 2016 www.eaton.com
3.4 Reset
All LED indications and latched trip relays are reset by
pressing the "SET" button for one second. Otherwise, the
latched trip relays will remain activated until auxiliary power
is disconnected. All LED indications will remain active until
reset is performed by the operator, even when auxiliary
power supply is disconnected (see Section 3.6: Non-volatile
Memory).
3.5 Dipswitch Settings
EAFR-102 functionality such as tripping logic is configured
using dipswitch settings. Different trip configurations can be
easily programmed by selecting the appropriate dipswitch
positions. This gives users the flexibility to change settings
dependent on the demand of application. Tripping may be
selected based on arc light only or arc light and current
thresholds (or other tripping criterion such as under-voltage,
or similar). Current thresholds or other tripping criterion may
be applied to binary input BI1 for blocking trip caused by
natural light sources. Also the CBFP time can be selected
by dipswitch setting according to the requirement of the
CBFP function. Dipswitches are located at the back of the
unit for easy access (see Figure 3: EAFR-102 Dipswitches
and Table 2: EAFR-102 Dipswitch Setting Selection for
detailed settings).
Light
S1: Light
Latch
100 ms
8
Light and Current
Light and Current
7
Non Latch
6
150 ms
5
4
3
2
1
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