Rice Lake 920i Installation Manual V4.0 - Manual (Page 15)

Installation 9
• For load cell cables, cut the shield wire just
past th e gro unding clamp . Shield wire
function is provided by contact between the
cable shield and the grounding clamp.
• Route stripped cables through cord grips and
clamps. Ensure shields contact grounding
clamps as shown in Figure 2-1. Tighten
grounding clamp nuts.
• Finish installation using cable ties to secure
cables inside of indicator enclosure.
2.3.2 Load Cells
To attach cable from a load cell or junction box to an
installed A/D card, route the cable through the cord
grip and ground the shield wire as described in
Section 2.3.1 on page 8.
Next, remove connector J1 from the A/D card. The
connector plugs into a header on the A/D card (see
Figure 2-2). Wire the load cell cable from the load cell
or junction box to connector J1 as shown in Table 2-1.
S
IG+
S
IG–
S
EN+
S
EN–
EXC+ EXC–
J1
JP2 JP1
Figure 2-2. Single-Channel A/D Card
If using 6-wire load cell cable (with sense wires),
remove jumpers JP1 and JP2 before reinstalling
connector J1. For 4-wire installation, leave jumpers
JP1 and JP2 on. For 6-wire load cell connections on
dual-channel A/D cards, remove jumpers JP3 and JP4
for connections to J2.
When connections are complete, reinstall load cell
connector on the A/D card and use two cable ties to
secure the load cell cable to the inside of the
enclosure.
Table 2-1. A/D Card Pin Assignments
A/D Card
Connector Pin Function
1 +SIG
2 –SIG
3 +SENSE
4 –SENSE
5 +EXC
6 –EXC
• For 6-wire load cell connections to connector J1, remove
jumpers JP1 and JP2.
• For 6-wire load cell connections to connector J2 (dual A/D
cards), remove jumpers JP3 and JP4.