Schweitzer Engineering Laboratories SEL-787 - Figure 2.3 Circuit Board of Analog I;O Board, Showing Jumper Selection

2.9
Date Code 20081022 Instruction Manual SEL-787 Relay
Installation
I/O Configuration
Step 8. Press the {Down Arrow} pushbutton until STATUS is highlighted.
Step 9. Press the {ENT} pushbutton.
The front-panel displays the following:
Confirm Hardware
Config (Enter)
Step 10. Press the {ENT} pushbutton.
The front-panel displays the following:
Accept Config?
Yes No
Step 11. Select Ye s and press the {ENT} pushbutton.
The front-panel displays the following:
Config Accepted
Enter to Restart
Step 12. Press {ENT}.
The relay restarts and the ENABLED light is turned on to indicate
the option card was installed correctly.
After reconfiguration, the relay updates the part number, except
for the digits shown below. These digits remain unchanged, i.e.,
these digits retain the same character as before the
reconfiguration. Also, a communications card installed in
Slot C will be reflected as an empty slot in the part number. Use
the STATUS command to view the part number.
Step 13. Attach the terminal marking label (provided with the card) to
the rear cover so that the INTERFACE CARD EXPANSION SLOT is
covered.
Step 14. Reconnect all connection plugs, and add any additional wiring/
connectors required by the new option card. Use the new rear-
panel if it is supplied with the card.
Analog Input (4 AI/
4AO Card) Voltage/
Current Jumper
Selection
Figure 2.3 shows the circuit board of an analog I/O board. Jumper x (x = 5–8)
determines the nature of each channel. For a current channel, insert Jumper x
in position 1–2; for a voltage channel, insert Jumper x in position 2–3.
Figure 2.3 Circuit Board of Analog I/O Board, Showing Jumper Selection
PART NUM =
07870X1A6X3A1A85020X
JMPX
21 3
JMPX
213
Position 2 – 3 = V (voltage) mode
Where "JMPX" is the
j
um
p
er for AI channel "X"
Position 1 – 2 = I (current) mode