30
SEL-FT50/SEL-FR12 Fault Transmitter and Receiver System
Instruction Manual
Date Code 20210405
Device Installation
Access 12 Individual LINK and FAULT Bits
Command Set 2 provides the individual status of Unit IDs 1–6 and Command
Set 3 provides it for Unit IDs 7–12. However, there is no command set that pro-
vides all 12 individual status points at one time.
For applications that require more than six individual LINK
u
or FAULT
u
bits,
set the SEL-651R to alternately request Command Set 2 and Command Set 3.
Achieve this by operating TMB4 from a SEL
OGIC
timer, changing state automat-
ically (refer to the top sections of
Table 9
and
Table 10
). Configure further
SEL
OGIC
to qualify and decode the RMB data, and store the result in the appro-
priate SEL
OGIC
variables for use in control functions or for system logging in the
Sequential Events Recorder.
Temporarily Disable SEL-FR12 M
IRRORED
B
ITS
Responses
For commissioning purposes, it may be necessary to disable the M
IRRORED
B
ITS
data that the SEL-FR12 is transmitting. In the SEL-651R, set TMB1–TMB8 = 0,
with the exception of setting TMB4 = 1. This has no effect on the SEL-FR12
front-panel LED operation.
Read Settings
Because the SEL-FR12 is set via control (DIP) switches on the rear of the device,
it may be difficult to read settings on the SEL-FR12 while it is installed in a cab-
inet. The SEL-FR12 includes a Read Settings mode that allows you to see the
switch positions of the device. To enter Read Settings mode, press and hold the
TARGET RESET
pushbutton two times (the first press cycles through RSSI mode).
The control (DIP) switch settings are displayed as follows:
➤
The
ENABLED
LED blinks three times per second to indicate that the
device is in Read Settings mode.
➤
LEDs 1–10 on the
FAULT
row of LEDs indicate the position of
Switches 1–10. If an LED is illuminated, that control (DIP) switch is
in the UP (or ON) position.
➤
LEDs 1–10 on the
LINK
row of LEDs indicate the position of
Switches 11–20.
SEL-FT50
Settings and Configuration
The SEL-FT50 uses two internal eight-position switch banks to configure the
Unit ID, the Network ID, and the Fault Pickup current level.
SEL-651R Received M
IRRORED
B
ITS
(Relay Word bits)
RMB1
RMB2
RMB3
RMB4
RMB5
RMB6
RMB7
RMB8
Response During Normal Conditions (No Fault on Trio 3 or Trio 4)
Trio 3
FAULT = 0
Trio 4
FAULT = 0
LINK 7
LINK 8
LINK 9
LINK 10
LINK 11
LINK 12
Response During FAULT Indication (One or Both Trio 3 FAULT, Trio 4 FAULT Asserted)
Trio 3 FAULT
Trio 4 FAULT
FAULT 7
FAULT 8
FAULT 9
FAULT 10
FAULT 11
FAULT 12
Table 10
Detailed Command Set 3—SSEL-FR12 M
IRRORED
B
ITS
Data Message Contents (Sheet 2 of 2)
Required SEL-651R Transmit M
IRRORED
B
ITS
(SEL
OGIC
Equations) for Detailed Command Set (2)
NOTE:
The SEL-FR12 automatically
exits Read Settings mode after
30 minutes. To manually exit, press
and hold the
TARGET RESET
pushbutton
until the
ENABLED
LED stays
illuminated.
NOTE:
The Read Settings function is
only available using the front-panel
LEDs. The settings cannot be accessed
remotely.
