Rice Lake 920i Installation Manual V1.05 - Manual (Page 6)

2 920i Installation Manual
Option Cards
The CPU board provides two slots for installing A/D
or other option cards. Additional option cards can be
added using either two-card or six-card expansion
boards connected to the CPU board via the expansion
bus. Available option cards include:
¥ Single- and dual-channel A/D cards to drive up to
sixteen 350
W
load cells per A/D card. A/D cards
support both 4- and 6-wire load cell connections.
A/D cards are matched to allow interchangeability
without having to recalibrate the scale. Calibration
includes support for latitude and elevation
compensation, millivolt calibration, and Þve-point
linearization.
¥ Analog output card for 0Ð10 VDC or 0Ð20 mA
tracking of gross or net weight values.
¥ Dual-channel serial expansion card provides one
additional RS-485 port or two ports for either
RS-232 or 20mA communications at up to
19200 bps.
¥ 24-channel digital I/O expansion card.
¥ 1MB memory expansion card for expanded
database capability.
¥ Pulse input card for use with pulse count and
pulse rate setpoints.
¥ Bus interface cards for DeviceNetª 1 ,
Allen-Bradley Remote I/O 2 , and ProÞbus ¨ DP
networks 3 .
See Section 2.5 on page 10 for detailed information
about expansion board conÞgurations. Part numbers
of available option cards and expansion boards are
listed in Section 1.4 on page 4.
Front Panel
The 920i front panel, shown in Figure 1-1, consists of
a 27-button keypad with a large backlit LCD display.
The keys are grouped as Þve conÞgurable softkeys,
Þve primary scale function keys, four navigation keys,
a n d n u m e r i c e n t r y k ey s . T h e d i s p l a y c a n b e
graphically conÞgured using
iRev software.
Weight information is displayed with a graphical scale
in six font sizes up to 1.2 inches. Up to four scale
w i d g e t s c a n b e d i s p l a y e d i n l eg a l - f o r- t r a d e ,
multiple-scale applications. Status areas on the
display are used for operator prompts and entering
data. The remainder of the display can be graphically
conÞgured for representation of a speciÞc application.
Display contrast can be adjusted with the LCD
contrast potentiometer.
Figure 1-1. 920i Front Panel
Enclosures
The 920i is available in four enclosures: universal
(tilt-stand), desktop, panel mount, and wall mount.
Stainless steel enclosures are rated for NEMA
4X/IP66. This manual provides assembly drawings
and replacement parts lists for the universal and
desktop models; supplemental documentation
provides information speciÞc to the panel mount and
wall mount models (Section 1.4 on page 4).
1.1 Operating Modes
The 920i has two modes of operation:
Normal mode
Normal mode is the weighing mode of the
indicator. The indicator displays gross, net, or tare
weights as required, using the secondary display
to indicate scale status and the type of weight
value displayed. Once conÞguration is complete
and a legal seal is afÞxed to the large Þllister-head
screw on the indicator enclosure, this is the only
mode in which the
920i can operate.
Setup mode
Most of the procedures described in this manual
require the indicator to be in setup mode,
including conÞguration and calibration.
To enter setup mode, remove the large Þllister
head screw from the enclosure. Insert a
screwdriver or a similar tool into the access hole
and press the setup switch once. The indicator
display changes to show scale conÞguration
menus.
1. DeviceNet™ is a trademark of the Open DeviceNet Vendor
Association.
2. Allen-Bradley ® , PLC ® , and SLC ™ are trademarks of Allen-Bradley
Company, Inc., a Rockwell International company.
3. Profibus
®
is a registered trademark of Profibus International.
PRINT UNITS
SOFTKEY1 SOFTKEY2 SOFTKEY3 SOFTKEY4 SOFTKEY5