Rice Lake 920i Installation Manual V4.0 - Manual (Page 8)

2 920i Installation Manual
• Single- and dual-channel A/D cards to drive up to
sixteen 350
Ω 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 five-point
linearization.
• Analog output card for 0–10 VDC or 0–20 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.
• Dual-channel analog input card supports 0–10
VDC, 0–20 mA, ambient temperature, and four
types of thermocouple.
• Bus interface cards for Ethernet,
EtherNet/IP ™ 1
, DeviceNet ™ 2
, Allen-Bradley
R e m o t e I / O
3
, P r o f i b u s ® D P
4
, a n d
ControlNet ™ 5
networks.
See Section 2.5 on page 13 for detailed information
about expansion board configurations. 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 five configurable softkeys,
five primary scale function keys, four navigation keys,
a n d n u m e r i c e n t r y k e y s . T h e d i s p l a y c a n b e
graphically configured using
iRev 4 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 e g 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
r e m a i n d e r o f t h e d i s p l a y c a n b e g r a p h i c a l l y
configured for representation of a specific application.
Display contrast can be adjusted with the LCD
contrast potentiometer.
PRINT UNITS
SOFTKEY1 SOFTKEY2 SOFTKEY3 SOFTKEY4 SOFTKEY5
Figure 1-1. 920i Front Panel
Enclosures
The 920i is available in four enclosures: universal
(tilt-stand), deep enclosure, 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 model;
supplemental documentation provides information
specific 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 configuration is complete
and a legal seal is affixed to the large fillister-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 configuration and calibration.
To enter setup mode, remove the large fillister
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 configuration
menus.
1. EtherNet/IP™ is a trademark of ControlNet
International, Ltd., under license by the Open
DeviceNet Vendor Association.
2. DeviceNet™ is a trademark of the Open DeviceNet
Vendor Association.
3. Allen-Bradley
®
, PLC
®
, and SLC
™
are trademarks of
Allen-Bradley Company, Inc., a Rockwell International
company.
4. Profibus
®
is a registered trademark of Profibus
International.
5. ControlNet™ is a trademark of ControlNet
International