8
INSTALLATION, Cont.
Load Cell Connection
The load cell is connected to the 777 scale input board via a DE-9P connector. Figure No. 8
shows the pin identification for the connector. Make certain the pins are correctly identified
before soldering a wire to them. Make certain that the connector retaining screws are used to
hold the load cell cable connector securely to the scale input board.
NOTE:
The 777 is shipped
with the sense jumpers J5 and J6 (located on the Scale Input Board) removed for use with
load cell installations that use sense leads (as in motor truck scales). If you don't use sense
leads in your load cell installation, insure jumpers J5 and J6 are connected or placed on both
pins to connect the sense leads to the excitation.
Load Cell Connection With Over 30 Feet Of Cable
For installations with over 30 feet of cable between the indicator and the load cells, sense
wires should be used. The sense wires must be connected between the +SENSE, -SENSE
terminals on the indicator and the +EXCITATION, -EXCITATION wires of the load cells or the
+SENSE, -SENSE terminals of the load cell trim board or the section seal trim board. For the
indicator to use the sense wires, the SENSE jumpers J5 and J6 must be open on the Scale
Input Board.
Load Cell Connection Wiring Diagram
PIN LOCATION AS VIEWED FROM CABLE ATTACHMENT SIDE
MATING CONNECTOR:
PART NO. VENDOR PART NO.
6610-2379 DE-9P CONNECTOR
6610-1131 DE-24657 SHELL
Figure No. 8
TO SINGLE LOAD
CELL OR SCALE
JUNCTION BOX
CONNECT 1 TO 9 AND
CONNECT 6 TO 4 WHEN
USING A LOAD CELL
NOT EQUIPPED WITH
SENSE LEADS OR
CONNECT J5 & J6 ON
THE SCALE INPUT
BOARD
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