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Leave jumpers JP1 and JP2 in
place for 4-wire load cell
installations. Remove them for
6-wire sense lead installations.
Power Supply Display Board
EEPROM
Fuse
Transformer
Figure 2-2.
IQ plus 810 SS wiring
®
2-2
IQ plus
800/810 Installation Manual
WIRING THE ANALOG INPUTS (LOAD CELLS)
Wire the analog input cable from the load cell or junction box to the
removable connector and plug into the CPU board at J10 near the A/D
module. If your indicator was purchased after June 1, 1996, the A/D module
will be surface mounted to the CPU board. See Figure 2-2 below for J10 pin
assignments #1-#7 for these indicators.
Note that earlier indicators (with A/D modules mounted on standoffs) have
J10 pin assignments in reversed order from Figure 2-2.
For a single-channel A/D module, use the upper plug-in connector for the
load cell. If a dual-channel A/D module is being used, plug the second load
cell cable into the lower connector at J10.
If using 4-wire load cell cable, leave on jumpers JP1 and JP2 that connect
pins 3 – 6 and pins 4 – 7 at terminal J10. For a 6-wire installation using
sense leads, remove the jumpers.
Battery
J2
REMOVE JUMPER
J6
J11 BEFORE
INSTALLING
BATTERY
Data
Cable
J1
AC Power Cable
Power Ribbon Cable
DIGTAL I/O WIRING
J4-10
J4-9
J4-8
J4-7
J4-6
J4-5
J4-4
J4-3
Power
J4-2
Ribbon
J4-1
Cable
CPU Board
Data
Ribbon
Setup Switch
Cable
SERIAL COMM.
J7-12
7-12
J7-11
EDP
J7-10
PORT
J7-9
SERIAL
J7-8
CONN.
J7-7
J7-6
1-6
J7-5
PRINT
J7-4
PORT
J7-3
SERIAL
J7-2
CON
J7-1
AC Power In
NC
GRD
GRD
DIG IN 1
DIG IN 2
DIG IN 3
DIG OUT 4
DIG OUT 3
DIG OUT 2
DIG OUT 1
A/D Module
+Sig
1
–Sig
2
+Sense
3
–Sense
4
Shield
5
+Exc
6
–Exc
7
1 2 3 4 5 6 7
J1
J2
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