Rice Lake 920i Series User manual

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December 2010 69988
920i®Programmable HMI Indicator/Controller
Wall Mount Enclosure Installation Instructions
PNs 69763, 69765, 69770, 69776, 72133, 72134
This document contains drawings, replacement parts
lists, and instructions for installing wall mount models
of 920i indicators. See the 920i Installation Manual,
PN 67887, for general installation and configuration
and calibration information.
Figure 1 shows the outside dimensions of the wall
mount enclosure.
The 920i has no on/off switch. Before
opening the unit, ensure the power cord is
disconnected from the power outlet.
• Use a wrist strap to ground yourself and protect
components from electrostatic discharge (ESD) when
working inside the indicator enclosure.
• This unit uses double pole/neutral fusing which could
create an electric shock hazard. Procedures requiring
work inside the indicator must be performed by
qualified service personnel only.
• The supply cord serves as the power disconnect for the
920i. The power outlet supplying the indicator must be
installed near the unit and be easily accessible.
0.75"
14.30"
19.63"
18.84"
11.00"
6.75"
PRINT
UNITS
14.00"
18.00"
Figure 1. Wall Mount Enclosure Dimensions
To be the best by every measure

2920i Wall Mount Enclosure Installation Instructions
Wall mount models of the 920i provide eleven cord
grips for cabling into the indicator. The parts kit
includes cord grip plugs to prevent moisture from
entering the enclosure. Install these plugs into all cord
grips that will be not be used in your application. Use
the cable grounding instructions below for wiring into
the indicator.
Cable Grounding
Cables routed through the cord grips should be
grounded against the indicator enclosure. Do the
following to ground shielded cables:
• Use the lockwashers, clamps, and kep nuts
provided in the parts kit to install grounding
clamps on the enclosure studs adjacent to cord
grips. Install grounding clamps only for cord grips
that will be used; do not tighten nuts.
• Route cables through cord grips and grounding
clamps to determine cable lengths required to
reach cable connectors. Mark cables to remove
insulation and shield as described below:
• For cables with foil shielding, strip insulation
and foil from the cable half an inch (15 mm)
past the grounding clamp (see Figure 2). Fold
the foil shield back on the cable where the cable
passes through the clamp. Ensure silver
(conductive) side of foil is turned outward for
contact with the grounding clamp.
• For cables with braided shielding, strip cable
insulation and braided shield from a point just
past the grounding clamp. Strip another half
inch (15 mm) of insulation only to expose the
braid where the cable passes through the clamp.
Cord grip
Insulated cable
Foil (silver side out) Grounding clamp
Shield wire (cut)
Length of foil before folding
back on cable insulation
Cut insulation here
for foil-shielded cables
Braid
Cut insulation here
for braided cables
NOTE: Install lockwashers
first, against enclosure,
under grounding clamp
Figure 2. Grounding Clamp Attachment for Foil-Shielded
and Braided Cabling
• For load cell cables, cut the shield wire just past
the grounding 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. Tighten grounding clamp
nuts.
• Finish installation using cable ties to secure
cables inside of indicator enclosure.
Power Specifications
Line Voltages 115 or 230 VAC
Frequency 50 or 60 Hz
Maximum Power Consumption, 65W on secondary
Primary power consumption: 100W TRMS
Constant current: 1.5 A TRMS (115VAC);
1.0 A TRMS (230VAC)
Fusing
115 VAC and 230 VAC North American
2 x 3.15A TR5 subminiature fuses
Wickmann Time-Lag 19374 Series
UL Listed, CSA Certified and Approved
230 VAC European
2 x 3.15A TR5 subminiature fuses
Wickmann Time-Lag 19372 Series
UL Recognized, Semko and VDE Approved
See the 920i Installation Manual, PN 67887, for
additional specifications.
Parts Kit Contents
Table 1 lists the parts kit contents for wall mount
models of the 920i.
Table 1. Parts Kit Contents
PN Description
14626 Kep nuts, 8-32NC (6)
15133 Lock washers, No. 8, Type A (6)
15631Cable ties (4–single A/D, 6–dual A/D)
15665 Reducing glands for 1/2 NPT cord grips (11)
15887 6-position screw terminal for load cell
connection (1–single A/D, 2–dual A/D)
19538Cord grip plugs (10–single A/D, 9–dual A/D)
42350 Capacity label (1–single A/D, 2–dual A/D)
53075Cable shield ground clamps (6)
70599 6-position screw terminals for J2 and J10 (2)
71125 3-position screw terminal for J11 (1)
71126 4-position screw terminal for J9 and optional
keyboard connection (2)

3
Replacement Parts and Assembly Drawings
Table 2 lists replacement parts for the 920i desktop and universal models, including all parts referenced in Figures
3through 6.
Ref
Number PN Description (Quantity)
See Figure
No.
168902 Enclosure, wallmount (1) 3
268598 Protective lens (1)
367614 LCD display (1)
415134Lock washers, No. 8, Type A (3)
514626 Kep nuts, 8-32NC (3)*
615601 Ground wire, 6 in w/ No. 8 eye connector (1)
7 53308 Model/serial number label (1)
967795 Power cord assembly, 115 VAC and 230 VAC North American units (1)
69998 Power cord assembly, 230 VAC European units (1)
10 68425 Fuse access coverplate (1) 3
11 14845 Machine screws, 6-32NC x 3/8 phillips (8)
12 75062 Sealing washers (8)
1314822 Machine screws, 4-40NC x 1/4 (11)
14 69538Power supply bracket (1)
15 14621 Kep nut, 6-32NC (1)
16 15630Lock nuts for 1/2 NPT cord grips (11)
17 67530Interface board connector plate (1)
18 67535Interface board gasket (1)
19 67869 Interface board (1)
21 14875 Machine screws, 10-32NF x 3/8 phillips (4)
22 15140 Lock washers, No. 10 Type A (4)
2346192 Ribbon cable clamps (3)
24 68661 Standoffs, long (2)
25 69898 Nylon spacers (2)
26 14618 Kep nuts, 4-40NC (2)
27 15631Cable tie, 3-in nylon (6)*
28 71431Power supply cable assembly, to CPU board (1)
29 71436Ribbon cable to interface board (1)
3067886 Standoffs, short (4)
3732365 Setup switch access screw, 1/4 x 20NC x 1/4 (1) 4
3859250 Sealing washer for setup switch access screw (1)
3930376 Nylon seal rings for 1/2 NPT cord grips (11)
40 15628 Cord grips, 1/2 NPT (11)
42 71447 Machine screws, 1/4-28NF x 3/4 phillips (3)
4371462 Fuses F1 & F2 (115 VAC and 230 VAC North American models), 3.15 A Time-Lag TR5 (2)
72339Fuses F1 & F2 (230 VAC European models), 3.15 A Time-Lag TR5 (2)
44 71333 Power supply, ±6VDC, 65W (1) 6
46 70069 3V Lithium coin battery 5
47 67610 Single-channel A/D card (1)
Table 2. Replacement Parts

4920i Wall Mount Enclosure Installation Instructions
48 68724 Cover gasket (1) 3
50 117930CPU board (1); Board marked as 109549; sold as PN 117930 5
51 15650 Cable tie mounts, 3/4 in. (6) 3
52 16861 High voltage warning label (1)
5316892 Ground/Earth label (1)
54 68621 Fuse access coverplate gasket (1)
55 68903Back panel (1)
—66502 Switch panel membrane (1)
* Additional parts included in parts kit.
To protect against the risk of fire, replace fuses only with same type and rating fuse.
Ref
Number PN Description (Quantity)
See Figure
No.
Table 2. Replacement Parts (Continued)

(11)
(12)
17
18
19
20/2X
15/4X
52
16/11X
21/4X
14
23/3X
24/2X
25/2X
(13)
26/2X
(13)
28
2
3
1
29
7
8
(4)
9
11/8X
12/8X
54
10
22/4X
13/11X
27/6X
48
(5)
(6)
4/3X
5/3X
6
55
53
51/6X
30/4X
5
Figure 3. Wall Mount Enclosure

37
40/11X
42/3X
38
39/11X
43/2X
FUSESF1 & F2
6920i Wall Mount Enclosure Installation Instructions
Figure 4. Wall Mount Enclosure, Bottom View
FROM SWITCH MEMBRANE
47
(28)
(29) (13)
FROM DISPLAY BOARD
FROM DISPLAY BOARD
46
50
Figure 5. Wall Mount Enclosure, CPU Board Connections
GROUND WIRE
(9)
(13)
44
GREEN WIRE
RED WIRE
BLACK WIRE
(28)
Figure 6. Wall Mount Enclosure, Power Supply Connections